Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Filtre Contact Inc
Original Assignee
Filtre Contact Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Filtre Contact IncfiledCriticalFiltre Contact Inc
Publication of CA3241549A1publicationCriticalpatent/CA3241549A1/en
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
A—HUMAN NECESSITIES
A62—LIFE-SAVING; FIRE-FIGHTING
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
A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
A62B18/10—Valves
A—HUMAN NECESSITIES
A62—LIFE-SAVING; FIRE-FIGHTING
A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
A62B23/00—Filters for breathing-protection purposes
A62B23/06—Nose filters
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Health & Medical Sciences (AREA)
General Health & Medical Sciences (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Pulmonology (AREA)
Otolaryngology (AREA)
Respiratory Apparatuses And Protective Means (AREA)