CN107073301A - Adjustable VOC/ formaldehyde absorbs jointly can use mask filter core and tank - Google Patents
Adjustable VOC/ formaldehyde absorbs jointly can use mask filter core and tank Download PDFInfo
- Publication number
- CN107073301A CN107073301A CN201480083396.9A CN201480083396A CN107073301A CN 107073301 A CN107073301 A CN 107073301A CN 201480083396 A CN201480083396 A CN 201480083396A CN 107073301 A CN107073301 A CN 107073301A
- Authority
- CN
- China
- Prior art keywords
- carbon
- filter core
- operable
- carbon material
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
Abstract
There is provided herein modified filter core（102）And form the operable filter core to filter polarity and nonpolar chemical substance（102）Method.The filter core（102）At least two active carbon filtration materials can be included（210）Combination, wherein, first material with carbon（211）It is operable to effectively absorb nonpolar chemical substance, and the second carbon material（212）It is operable to effectively absorb polar chemical material.The chemical material can be combined and can form filter core layer（102）.The filter core（102）It can also operate with filter particulate material.
Description
The cross reference of related application
It is inapplicable.
Statement on research or the development of federal funding
It is inapplicable.
The reference of Microfiche appendix
It is inapplicable.
Background technology
Mouth mask protects users from breathing the steam being potentially dangerous usually using filter core.When mouth mask is worn on use
Appropriate location with family（Generally face or head are attached to form sealed mode）When, as long as user breathes, just pass through
Filter core is drawn air into mouth mask（And air mostly just can enter mouth mask by filter core, so that air can be with
By filter element filtering, to ensure that the air that the user for just wearing mouth mask is sucked is clean and safe）.This filter core leads to
Filtering material is often accommodated, the steam that one or more can be potentially dangerous by the filtering material is stopped.When filtering material is sudden and violent
When being exposed in steam, the filtering material generally absorbs steam molecule by the pore structure of material.
The content of the invention
The aspect of the disclosure can include the embodiment for forming the method for filter core, and this method includes：Combine the first carbon
Material and the second carbon material, wherein, first material with carbon is operable to effectively absorb nonpolar chemical substance, and the second carbon materials
Material is operable to effectively absorb polar chemical material；The carbon material of combination is dispersed in the hollow housing of filter core；It is close
Seal the housing of the receiving carbon material of filter core；And lid is attached on hollow housing with seal casinghousing.
In certain embodiments, first material with carbon can operate to effectively absorb VOC（VOC）, and
And second carbon material can operate to effectively absorb formaldehyde.In certain embodiments, the carbon material of combination can be included in about
Between 100 grams to about 200 grams.In certain embodiments, combination carbon material can include：Mixed with dither equipment with
Carbon material is mixed in heterogeneity.In certain embodiments, the ratio of first material with carbon and the second carbon material can be about 1 to 1（Example
Such as, second carbon material of 50% first material with carbon than 50%）.In certain embodiments, this method may further include：It is based on
Desired conditions and environment selects the ratio of first material with carbon and the second carbon material.In certain embodiments, this method can be with
Further comprise：More filtering materials are gathered in the housing of filter core, more filtering materials are operable with mistake
Filter particulate matter.In certain embodiments, disposable mask can operate to filter 0.3 micron or bigger particulate matter.
In certain embodiments, lid being attached on hollow housing can be included with seal casinghousing：Surpass at least a portion of lid
Sound is melted on housing.
More aspects of the disclosure can include the embodiment for the filter core being used together with breathing mask, the filter core bag
Include：First material with carbon, the first material with carbon is operable to effectively absorb nonpolar chemical substance；Second carbon material, this second
Carbon material is operable to effectively absorb polar chemical material, wherein, by first material with carbon and the second carbon material about in heterogeneity
Mix；And housing, the housing is operable to accommodate carbon filtering material, and is configured to be removably attached to
Breathing mask.
In certain embodiments, the filter core may further include filtering material, and the filtering material is operable with mistake
Particulate matter in air filtering.In certain embodiments, the filter core may further include the lid for being attached to hollow housing
Body, the lid is operable with seal casinghousing.In certain embodiments, housing can include：End is attached, the attachment end is used for removable
It is attached to breathing mask with unloading；And one or more air inlet.In certain embodiments, first material with carbon can be effectively
Operate to absorb VOC（VOC）, and the second carbon material effectively can operate to absorb formaldehyde.At some
In embodiment, the carbon material of combination can be included between 100 grams to 200 grams.In certain embodiments, in carbon filtering material layer
The first carbon and the ratio of the second carbon can be about 1 to 1.
The other side of the disclosure can include the embodiment for forming the method for filter core, and this method includes：It was based on
The filter filter core desired conditions that uses selects the ratio of first material with carbon and the second carbon material, wherein, first material with carbon is operable
To effectively absorb VOC（VOC）, and the second carbon material is operable to effectively absorb formaldehyde；Via with
Dither equipment is mixed to mix carbon material in heterogeneity to combine first material with carbon and the second carbon material；By the carbon of combination
Material dispersion is in the hollow housing of filter core；Seal the housing of the receiving carbon material of filter core；And be attached lid
With seal casinghousing on to hollow housing.
In certain embodiments, the ratio of first material with carbon and the second carbon material can be about 1 to 1（For example, the of 50%
Second carbon material of one carbon material than 50%）.In certain embodiments, this method may further include：By more filter materials
Material is gathered in the housing of filter core, and more filtering materials are operable with filter particulate material.In certain embodiments,
Disposable mask can operate to filter 0.3 micron or bigger particulate matter.
With reference to drawings and claims, these and other of the invention will be more clearly understood that from the following detailed description
Feature.
Brief description of the drawings
In order to which the disclosure is more fully understood, referring now to below in conjunction with accompanying drawing and be described in detail carry out brief description, its
In, identical reference represents identical part.
Fig. 1 shows the exemplary filter core on breathing mask；
Fig. 2A shows exemplary filter core；And
Fig. 2 B show the section of Fig. 2A mask.
Embodiment
First it is appreciated that while illustrating the illustrated embodiment of one or more embodiment below, still
Can be by using whether the known or multiple technologies that not yet exist implement disclosed system and method at present.The disclosure
Certainly should not necessarily be limited by illustrated embodiment described below, accompanying drawing and technology, but can appended claims model
Enclose and the disclosure is modified in the four corner together with its equivalent.
The definition briefly below of term should apply to whole application：
Term " comprising " refers to including but not limited to, and should be explained in the way of being generally used for patent context；
Phrase " in one embodiment ", " according to one embodiment " etc. are often referred to specific features after the phrase, structure
Or during feature can include at least one embodiment of the present invention, and the more than one implementation of the present invention can be included in
In example（Importantly, this phrase not necessarily refers to identical embodiment）；
If it is " exemplary " either " example " that specification, which describes something or other, then shown it should be appreciated that it refers to nonexcludability
Example；
Term " about " either " substantially " etc. can refer to optional network specific digit or alternately when numeral is used together, and refer to and connect
The scope of nearly optional network specific digit, is arrived as the skilled personnel to understand；And
If specification stated elements or feature " can with ", " possibility ", " energy ", " should ", " meeting ", " preferably ", " may
Ground ", " usual ", " alternatively ", " such as ", " usually ", " may "（Or other this language）It is included or with spy
Property, then do not require that the particular elements or feature are included or with the characteristic.This part or feature can be alternatively
It is included in certain embodiments, or can be not included in certain embodiments.
Embodiment relates generally to improved filter core and forms operable with filtering（Absorb）Polarity and nonpolar
The method of the filter core of two kinds of chemical substances.Filter core can include at least two active carbon filtration materials（Or medium）
Combination, wherein, first material with carbon is operable to effectively absorb nonpolar chemical substance（For example, being exemplified as VOC）, and the
Two carbon materials are operable to effectively absorb polar chemical material（For example, being exemplified as formaldehyde）.Chemical material can be combined simultaneously
And the layer of filter core can be formed.Filter core can also be operated with filter particulate material.
Fig. 1 shows the embodiment of breathing mask 100, and the breathing mask 100 includes one or more filter core 102, gone out
Gas port 104 and one or more bandage 106, one or more bandage 106 are operable to keep mask 100 to be attached to pendant
Wearer is on the face.In an illustrated embodiment, air can pass through（It is multiple）Filter core（102）Flow into mask 100 and via going out
Gas port 104 flows out mask 100, wherein,（It is multiple）Filter core（102）The air of user's suction can be filtered.
Fig. 2A shows filter core 102, wherein, filter core 102 can include air inlet 208 and attachment point 206, should
Attachment point 206 is removably attached to（Fig. 1's）Breathing mask 100.In addition, filter core 102 can include housing 204 and lid
（Or lid）202.In certain embodiments, lid 202 can via ultra-sonic welded by fusing be attached to housing 204.One
In a little embodiments, air can be flowed into by the air inlet 208 of filter core 102（Fig. 1's）Breathing mask 100.
Fig. 2 B show the section of Fig. 2A filter core 102.In certain embodiments, filter core 102 can include
Carbon filter medium（Or material）210, wherein, carbon filtering material can operate to filter（Or absorb）Chemicals in air
Matter.In addition, in certain embodiments, filter core 102 can include particle filtering material 214, and the particle filtering material 214 can
Operate to cross the particulate matter in air filtering.In certain embodiments, carbon filtering material 210 can include being dispersed in filter core
Bulk material in a part for 102 hollow housing 204.In addition, lid 202 can accommodate carbon filtering with seal casinghousing 204
Material 210 and any other filtering material（For example, particle filtering material 214）.In certain embodiments, filter core 102
It can operate to filter about 0.3 micron or bigger particulate matter.In certain embodiments, filter core 102 can include other
Filter layer 216, for example, more carbon filtering materials and more particle filtering materials in addition to other filtering options.At some
In embodiment, particle filter layer 214 can be located on carbon filter layer 210, wherein, by carbon filtering material 210 from air
In filter out chemical substance before, particle can be filtered out from the air for passing through air inlet 208 and entering filter core.However,
In other embodiments, filtering material can be arranged in filter core 102 in any sequence.
In certain embodiments, carbon filter medium 210 can include at least two different carbon materials.For example, the first carbon
Material 211（Represented by plus sige）It can operate to effectively absorb nonpolar chemical substance, and the second carbon material 212（By circle table
Show）It can operate to effectively absorb polar chemical material, wherein, two kinds of carbon materials can be mixed, to form filter core
102 carbon filter medium 210.In certain embodiments, first material with carbon 211 can be particularly configured to filtering（Absorb）VOC.
In some embodiments, the second carbon material 212 can be particularly configured to filtering（Absorb）Formaldehyde.In certain embodiments, can be by
Two kinds（Or it is more）Mix, for example, being mixed by using dither equipment the homogenous of carbon material 210.To carbon
Material 210, which carries out homogeneous mixing, can allow have uniform filtration ability on filter core 102.In certain embodiments, two
The mixture for planting carbon material 210 can be used for filter core 102, in the filter core 102, pass through filter core 102（And
Therefore carbon material is passed through）Air-flow be that breathing by just wearing the user of breathing mask is provided, rather than transported by fan
Turn what is provided.In certain embodiments, the mixture of two kinds of carbon materials 210 can be used to carry out the filtering both chemical material from air,
Rather than from water（For example, in water filtering system）Filtering both chemical material.
In certain embodiments, the operable first material with carbon 211 to filter such as VOC nonpolar chemical substance can be with
Including Calgon Carbon WSC370.In certain embodiments, it is operable to filter such as formaldehyde（HCHO）Polar chemical
Second carbon material 212 of material can include DeXuan-A-HCHO.However, it is possible to use the carbon materials of other brands or type
Expect to realize filtering（Absorb）The identical purpose of non-polar and polar chemical substance.In certain embodiments, can with manganese, cerium or
The catalyst of its combination of person handles the second carbon material 212.In certain embodiments, the combination of two kinds of carbon materials can operate with
Absorbed according to about 590 grams of every gram of carbon material absorption per minute or higher infiltration rate.In certain embodiments, two kinds
The combination of carbon material can operate to absorb according to every gram of carbon material infiltration rate per minute for absorbing about 650 grams or higher
Such as VOC nonpolar chemical substance.In certain embodiments, the combination of two kinds of carbon materials can be operated with according to every gram of carbon materials
Material is per minute to be absorbed about 1400 grams or higher infiltration rate to absorb the polar chemical material of such as formaldehyde.In some implementations
In example, the combination of two kinds of carbon materials can operate to absorb about 0.7 gram or higher absorption according to every gram of carbon material is per minute
Capacity is absorbed.In certain embodiments, the combination of two kinds of carbon materials can be operated with according to about 0.1 gram of chemicals of every gram of carbon
The absorptive capacity of matter or higher absorbs such as VOC nonpolar chemical substance.In certain embodiments, two kinds of carbon materials
Combination can operate with the absorptive capacity according to about 0.8 gram of every gram of carbon or higher to absorb the polar chemical thing of such as formaldehyde
Matter.
In certain embodiments, the ratio of two kinds of carbon materials can be about 1 to 1（For example, 50% first material with carbon 211 compares
50% the second carbon material 212）.However, in other embodiments, desired conditions that can be based on filter core 102 to be used and
Environment is selected（Or adjustment）The ratio of carbon material.For example, if the desired Carrying capacity is than polar chemical material more
High nonpolar chemical substance, the amount of first material with carbon 211 can be more than the amount of the second carbon material 212.In certain embodiments,
The total amount of carbon material 210 can be between about 100 grams to 200 grams.However, the amount of the carbon material 210 in filter core can be based on
Filter the application of filter core 102 and change.For example, the higher filter core of capacity can be designed as being used for having a large amount of polarity and non-pole
It the environment of property chemical substance and/or can be designed as increasing the service life, and therefore needed more in filter core 102
The carbon material 210 of volume.Similarly, the lower filter core of capacity can be designed as with less amount polarity and non-polarization
Learn in the environment of material using and/or be less expensive option for a user, and therefore in the domestic demand of filter core 102
Want lesser amount of carbon material 210.
In certain embodiments, carbon filter medium 210 can include bulk material.For example, carbon material can include about 10/
16 size of meshes（mesh size）To the bulk material of about 16/18 size of mesh.In certain embodiments, carbon material can be wrapped
Include the bulk material of about 10 size of meshes to 20 size of meshes.In certain embodiments, the BET of carbon material（Brunauer–
Emmett–Teller）Specific surface area can be every gram 500-2000 square metres.
Some embodiments of the present disclosure can include forming filter core 102（As described above）Method.In some implementations
In example, first material with carbon and the second carbon material can be combined, wherein, first material with carbon can operate nonpolar to effectively absorb
Chemical substance, and the second material can operate to effectively absorb polar chemical material.It is then possible in filter core
The carbon material of combination is spread in empty capsid, and the housing of filter core can be sealed, to accommodate carbon material.It is then possible to will
Lid is attached to hollow housing to seal the housing.
In certain embodiments, first material with carbon can effectively absorb VOC with operable, and the second carbon material can be with
It is operable to effectively absorb formaldehyde.In certain embodiments, the carbon material of combination can be included in about 100 grams to about 200 grams
Between.In certain embodiments, combination carbon material can include being mixed to carry out homogeneous mixing with dither equipment.
In some embodiments, first material with carbon can be about 1 to 1 than the ratio of the second carbon material（For example, 50% first material with carbon
The second carbon material than 50%）.In certain embodiments, can be based on selecting first using the desired conditions and environment of mask
The ratio of carbon material and the second carbon material.For example, if it is desired to（Or determine）The amount of nonpolar chemical substance in air is big
The amount of polar chemical material in air, then the amount of the first material with carbon in the mixture of carbon material can be more than second
The amount of carbon material.
In certain embodiments, more filtering materials can be gathered in the housing of filter core, wherein, more
The operable particulate matter to cross in air filtering of filtering material.In certain embodiments, disposable mask can operate to filter
0.3 micron or bigger particulate matter.In certain embodiments, the first carbon of combination and the second carbon include progress about homogeneous
Mixing.In certain embodiments, lid being attached on hollow housing can be included with seal casinghousing：Make at least one of lid
It is point ultrasonic melting on housing.
Although each embodiment according to principles disclosed herein is had been illustrated above and describes, not inclined
In the case of spirit or teaching from the disclosure, it can be modified by those skilled in the art.Reality described herein
Example is applied to be only representational and be not intended to limitation.Many modifications, combination and modification are possible, and in the model of the disclosure
In enclosing.Because of combination, integrate and/or omission（It is multiple）The feature of embodiment and the alternate embodiment that produces are also in the scope of the present disclosure
It is interior.Therefore, protection domain and it is not limited by the description set out above, but is limited by appended claims, the scope bag
Include all equivalents of the theme of claims.Each and each claim is incorporated into as further disclosure
In bright book, and claims are（It is multiple）The present invention's（It is multiple）Embodiment.In addition, any advantage described above and spy
Specific embodiment can be related to by levying, but be should in no way limit and be applied to claims of this announcement to realize in above-mentioned advantage
Any one or it is whole or as characterized above in any one or whole process and structure.
In addition, chapter title used herein is arranged to consistent or another with 37 C.F.R. 1.77 suggestion
It is outer that organized prompting is provided.These titles should in no way limit or be characterized in any claim that can be announced from the disclosure
Stated in book（It is multiple）Invention.Specifically and for example, although title may relate to " technical field ", right will
Ask be limited by the language for selecting to describe so-called field under the title.Further, the skill in " background technology "
Art description is read as recognizing that a certain technology is any in the disclosure（It is multiple）The prior art of invention." content of the invention " not yet
It is considered as what is stated in disclosed claims（It is multiple）The limitation of invention is characterized.In addition, to list in the disclosure
Any reference of " invention " of number form formula shall not be used for contention only one of which innovative point in the disclosure.Can according to from
The disclosure announce multiple claims limitation and state multiple inventions, and these claims therefore define（It is multiple）
Invention and its shielded equivalent.In all cases, the scope of claims is considered as on their own
According to the advantage of the disclosure, but it should be limited by title set forth herein.
Such as including, include and withCompared withThe use of broad sense word should be understood that to for example by ... constitute, substantially
On by ... constitute and generally by ... including wait compared with narrower term provide support.Term on any key element of embodiment
" alternatively ", " can with ", " may ", the use of " possibly " etc. refers to the key element and is not essential, or alternately refer to this
Key element is necessary, and two alternatives exist（It is multiple）In the range of embodiment.Moreover, the reference to example is only explanation
Property, rather than be intended to exclusive.
Although providing multiple embodiments in the disclosure, it should be appreciated that, in the spirit without departing from the disclosure
In the case of scope, disclosed system and method can be presented as many other particular forms.This example is considered as
Bright property and it is nonrestrictive, and the present invention is not limited to details given herein.For example, various key elements or part can
Either it is integrated in another system or some features can be omitted or do not implemented with combining.
Moreover, in the case of without departing from the scope of the present disclosure, described in each embodiment and be illustrated as be it is discrete or
The single technology of person, system, subsystem and method can be with other systems, module, technology or Combination of Methods or merging.Institute
Show or be discussed as be directly coupled with each other or communication other projects can also electrically, mechanical system or other sides
Formula is coupled or communicated indirectly by some interfaces, device or intermediate member.The other examples change, replaced and change can
Determined, and can be made in the case of without departing from spirit and scope disclosed herein by those skilled in the art.
Claims (10)
1. one kind is used to form filter core（102）Method, methods described includes：
Combine first material with carbon（211）With the second carbon material（212）, wherein, the first material with carbon（211）It is operable with effective
Ground absorbs nonpolar chemical substance, and second carbon material（212）It is operable to effectively absorb polar chemical material；
By the carbon material of combination（210）It is dispersed in the filter core（102）Hollow housing（204）It is interior；
Seal the receiving carbon material of the filter core（210）The housing（204）；And
By lid（202）It is attached to the hollow housing（204）On, to seal the housing（204）.
2. according to the method described in claim 1, wherein, the first material with carbon（211）It is operable to effectively absorb volatilization
Property organic compound（VOC）, and second carbon material（212）It is operable to effectively absorb formaldehyde.
3. according to the method described in claim 1, wherein, the carbon material of the combination（210）It is included in about 100 grams and arrives about 200
Between gram.
4. according to the method described in claim 1, wherein, the first material with carbon（211）With second carbon material（212）'s
Ratio is about 1 to 1（For example, second carbon material of 50% first material with carbon than 50%）.
5. according to the method described in claim 1, methods described further comprises：By more filtering materials（214）It is gathered in
The filter core（102）The housing（204）It is interior, more filtering materials（214）It is operable with filtration of particulate matters
Matter.
6. a kind of and breathing mask（100）The filter core being used together（102）, the filter core（102）Including：
First material with carbon（211）, the first material with carbon（211）It is operable to effectively absorb nonpolar chemical substance；
Second carbon material（212）, second carbon material（212）It is operable to effectively absorb polar chemical material, wherein, will
The first material with carbon（211）With second carbon material（212）About mix in heterogeneity；And
Housing（204）, the housing（204）It is operable to accommodate carbon filtering material（210）, and be configured to removably
It is attached to breathing mask（100）.
7. filter core according to claim 6, wherein, the housing（204）Including：
It is attached end（206）, the attachment end（206）For being removably attached to the breathing mask（100）；And
One or more air inlet（208）.
8. filter core according to claim 6, wherein, the first material with carbon（211）It can effectively operate to absorb
VOC（VOC）, and second carbon material（212）It effectively can operate to absorb formaldehyde.
9. filter core according to claim 6, wherein, the carbon material of the combination（210）It is included in 100 grams to 200
Between gram.
10. filter core according to claim 6, wherein, the first material with carbon（211）With second carbon material
（212）Ratio be about 1 to 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/091109 WO2016074217A1 (en) | 2014-11-14 | 2014-11-14 | Adjustable voc/formaldehyde co-absorbing usable mask cartirdge and canister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107073301A true CN107073301A (en) | 2017-08-18 |
Family
ID=55953609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480083396.9A Pending CN107073301A (en) | 2014-11-14 | 2014-11-14 | Adjustable VOC/ formaldehyde absorbs jointly can use mask filter core and tank |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107073301A (en) |
| WO (1) | WO2016074217A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019081033A1 (en) * | 2017-10-26 | 2019-05-02 | Alfred Kärcher SE & Co. KG | Portable individual air purification system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403175A (en) * | 2001-08-30 | 2003-03-19 | 日本安全网络株式会社 | Emergency smokeproof mask |
| CN1470809A (en) * | 2002-07-26 | 2004-01-28 | 北京亚都科技股份有限公司 | Method and apparatus for purifying indoor air |
| CN103239815A (en) * | 2013-05-17 | 2013-08-14 | 江南大学 | Motor-driven air filtering mask |
| CN203274062U (en) * | 2013-05-31 | 2013-11-06 | 绍兴市品森环境科技有限公司 | Novel air purifier |
| CN103611387A (en) * | 2013-12-03 | 2014-03-05 | 中国科学院生态环境研究中心 | Method and device for purifying air pollution |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012432A1 (en) * | 1993-11-05 | 1995-05-11 | Purecab Australia Pty. Ltd. | Respiratory filter indicator |
| US7419526B2 (en) * | 2005-03-03 | 2008-09-02 | 3M Innovative Properties Company | Conformal filter cartridges and methods |
| US7749303B2 (en) * | 2007-08-30 | 2010-07-06 | The Boeing Company | Service life indicator for chemical filters |
| US8336543B2 (en) * | 2009-05-22 | 2012-12-25 | 3M Innovative Properties Company | Filter cartridge having cover for masking service life indicator |
| JP6242340B2 (en) * | 2011-12-12 | 2017-12-06 | スリーエム イノベイティブ プロパティズ カンパニー | End-of-life indication system for multilayer filter cartridges |
| CN103976483A (en) * | 2013-02-07 | 2014-08-13 | 深中海医疗用品（深圳）有限公司 | Mask with replaceable filter core |
-
2014
- 2014-11-14 CN CN201480083396.9A patent/CN107073301A/en active Pending
- 2014-11-14 WO PCT/CN2014/091109 patent/WO2016074217A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403175A (en) * | 2001-08-30 | 2003-03-19 | 日本安全网络株式会社 | Emergency smokeproof mask |
| CN1470809A (en) * | 2002-07-26 | 2004-01-28 | 北京亚都科技股份有限公司 | Method and apparatus for purifying indoor air |
| CN103239815A (en) * | 2013-05-17 | 2013-08-14 | 江南大学 | Motor-driven air filtering mask |
| CN203274062U (en) * | 2013-05-31 | 2013-11-06 | 绍兴市品森环境科技有限公司 | Novel air purifier |
| CN103611387A (en) * | 2013-12-03 | 2014-03-05 | 中国科学院生态环境研究中心 | Method and device for purifying air pollution |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016074217A1 (en) | 2016-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7507338B2 (en) | Universal water purifier unit assembly device | |
| US7396461B2 (en) | Filter cartridge for gravity-fed water treatment device | |
| US8741137B2 (en) | Filtering methods and configurations | |
| CN201436035U (en) | Air filtering sterilization machine | |
| CN105565425B (en) | Composite filter element and water purifying equipment with same | |
| JP2007504948A (en) | Non-disintegrating dual filter element | |
| CN107073301A (en) | Adjustable VOC/ formaldehyde absorbs jointly can use mask filter core and tank | |
| CN1978002A (en) | Dust-filtering respirator | |
| CN107847773A (en) | Filter cylinder and breathing mask for breathing mask | |
| KR20160058064A (en) | Filter device for water purifier | |
| CN108602690A (en) | For carrying out clean cylinder to water by electroactive sorbing material (Zeta electric potential) | |
| JP2015024364A (en) | Water purification cartridge and water purifier | |
| CN105753213B (en) | Three-stage filtration composite filter element and water purifier containing the three-stage filtration composite filter element | |
| JPS6323712A (en) | Apparatus for removing carbon dioxide from gaseous mixture | |
| CN106642376A (en) | Novel air purifier | |
| CN207108725U (en) | The water purification filter pipe filtered at many levels | |
| US9314653B2 (en) | Sorbing granular material and process for producing sorbing granular material | |
| CN106855263A (en) | It is a kind of being capable of novel indoor air device that is sterilized and eliminating virus | |
| KR20210103449A (en) | Hybrid-complx filters generating oxygen | |
| WO2022076152A2 (en) | Personal protective anti-viral face mask | |
| CN107072339A (en) | The non-woven carbon filter medium that adjustable VOC/ formaldehyde for disposable mask absorbs jointly | |
| TWI249413B (en) | Air purification device | |
| CN207401313U (en) | A kind of waste gas purification environmental protection equipment | |
| CN206025566U (en) | Multifunctional travel mug | |
| CN212790236U (en) | Novel filtering absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |