PL70002Y1 - Device for protecting against inhaling aerosols and bioaerosols - Google Patents

Abstract

The subject of the application is a device for protecting against inhalation of aerosols and bioaerosols, which consists of an air pressure generating module (1), which is connected by a flexible conduit (2) with an air flow channel (3) tilted with a hinge (7) to the headband (6), which is connected to the air outlet nozzles (4) equipped with holes (5), enabling laminar flow of air to the area closest to the nose and mouth of the user. The air overpressure module (1) has an air purifier. The air outlet nozzles (4) are located on either side of the user's nose and mouth or above the forehead.

Description

Pattern description

The subject of a utility model is a device for preventing the inhalation of aerosols and bioaerosols, which can be used advantageously by personnel in dental offices during dental procedures.

The hitherto known devices for protecting against inhalation of aerosols and bioaerosols, described in the patents US 4,807,619 and US 5,307,706, have the shape of protective face masks and are made of porous filter materials. When the air is inhaled inside the mask, a negative pressure is created, which forces the contaminated air to flow through the porous filter material and purify it from aerosols and bioaerosols.

There are also known devices for protecting against inhalation of aerosols and bioaerosols containing various types of filters, absorbers and combined filters, in which the air is purified and then fed under pressure to the interior of the mask. In many solutions, clean air is supplied to the inside of the mask from an independent source. Protective masks are often equipped with an exhalation valve to facilitate the discharge of exhaled air. Such solutions are presented in the patents US 4,827,924 and PL 190442. Protective masks made of non-porous materials, described in the patent US 5,062,421, have a filter cartridge and an exhalation valve that opens on exhaling, during which the pressure inside the mask increases. In addition to protecting against inhalation of aerosols and bioaerosols, some masks also protect the eyes or the entire face of the user. Such masks are described in patents EP 0625344 and PL 186335.

The purpose of the utility model is a device for protecting users against inhalation of aerosols and bioaerosols, especially in places where these pollutants are emitted.

The essence of the device for protection against inhalation of aerosols and bioaerosols according to the utility model having an air overpressure generating module and flexible ducts is that it consists of an air overpressure generating module, which is connected with a flexible duct with an air flow duct mounted tiltably with a hinge to the headband, which is connected to the air outlet nozzles provided with openings allowing laminar flow of air to the area closest to the user's nose and mouth. The overpressure generating module has an air cleaner. The air outlet nozzles are located on either side of the user's nose and mouth or above the forehead.

The advantageous effect of the utility model is that it allows clean air to be brought directly into the immediate vicinity of the nose and mouth of the user without reducing comfort and without restricting the user's field of vision. The utility model can be used in conditions where it is necessary to protect the respiratory tract against aerosol and bioaerosol contamination. The solution according to the utility model may be particularly advantageous in dental offices where the personnel is exposed to the harmful effects of aerosol and bioaerosol pollutants emitted during dental procedures.

The utility model is shown in the drawing, in which Fig. 1 is a perspective view of a user with a device with air outlet nozzles on both sides of the nose and mouth, and Fig. 2 is a perspective view of a user with a device with air outlet nozzles above the user's forehead. .

The device to protect against inhalation of aerosols and bioaerosols was used in the dentist's office. The air was cleaned in the air pressure generation module 1 and led through a hose 2 to an air flow channel 3 pivotally mounted by a hinge 7 to a headband 6 worn by the user. The air was then distributed to the air outlet nozzles 4 located on both sides of the nose and mouth or above the forehead of the user. Then, air was supplied to holes 5 in the air outlet nozzles 4 and directed in a laminar stream to the area closest to the nose and mouth of the user.

List of markings 1.- Air overpressure module 2.- Flexible hose 3.- Air flow channel 4.- Air outlet 5.- Hole 6.- Headband 7.- Hinge

Claims (3)

Protective reservations 1. Device for protection against inhalation of aerosols and bioaerosols having an air overpressure generating module and flexible hoses, characterized by the fact that it consists of an air overpressure generating module (1) connected by a flexible hose (2) with an air flow duct (3) fixed swiveling by means of the hinge (7) to the headband (6), which is connected to the air outlet nozzles (4) equipped with holes (5) enabling laminar flow of air to the area closest to the nose and mouth of the user. 2. The device according to claim The device of claim 1, characterized in that the air positive pressure generating module (1) has an air purifier. 3. The device according to claim The apparatus of claim 1, characterized in that the air outlet nozzles (4) are provided on both sides of the user's nose and mouth or above their forehead.