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Publication of BE470204ApublicationCriticalpatent/BE470204A/fr
A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
A62B18/003—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort having means for creating a fresh air curtain
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Pulmonology
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General Health & Medical Sciences
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Business, Economics & Management
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Emergency Management
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Shielding Devices Or Components To Electric Or Magnetic Fields
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