摘要:
Provided is a portable air purifier, which includes: a mask part; a first connecting hose having one end connected to the mask part; a second connection hose in which the first connection hose is installed, and at least part of which has an opening for introducing external air; an air purification module that purifies the introduced external air to a predetermined temperature condition and discharges the purified air to the first connecting hose; and a power supply unit configured to supply power to the heater. Since the air purification module for removing poisonous gases or biochemical pollutants through a catalytic reaction of a metal catalyst layer can be semi-permanently used, the conventional inconvenience of carrying an extra canister is removed.
摘要:
An oxygen supply system for a station operator includes an oxygen cylinder; a mask operably connected to the oxygen cylinder; a pouch operably connected to the mask; carbon dioxide scrubber disposed inside the pouch; first one-way valve operably connected between the mask and the pouch for allowing one-way flow of gases exhaled by the operator from the mask to the pouch; and second one-way valve operably connected between the mask and the pouch for allowing one-way flow of gases from the pouch to the operator.
摘要:
A filter assembly for use with a respirator may include a conformal filter having a body with at least one filter bed, an input end, and an output end recessed within the body and having an integral threaded connector having external threads adapted to thread onto a respirator inhalation connector, and a threaded connector piece removably mounted to the integral threaded connector of the conformal filter.
摘要:
A filter cartridge for a respiratory mask includes a housing comprised of an inner receptacle having an open end and an outer cover mounted over said open end of said inner receptacle. The outer cover includes, in a covering surface thereof, an air intake aperture in fluid communication with said inner receptacle. The outer cover is pivotally mounted to the inner receptacle and configured for pivotal movement relative thereto between a first configuration in which there is a gap between said open end of said inner receptacle and said outer cover such that a respiratory airway is defined between said intake aperture and said inner receptacle, and a second configuration in which said outer cover substantially seals said open end of said inner receptacle and said respiratory airway is thereby blocked.
摘要:
The invention concerns a portable breathing apparatus for protecting a user against contact with the contaminated surrounding atmosphere, wherein the breathing apparatus can be supplied with fresh breathable air via an air tube connected to an air supply system that is at above atmospheric pressure, characterised in that the breathable air flows out of a body (1 - 1d) which is connected to the air tube and has at least one defined outflow surface (4) for the breathable air.
摘要:
Air filtering devices may be helmet-mounted or belt-mounted. The air filtering devices include a filtering device shell and a filtering unit. The filtering unit includes a contaminated-air inlet, a filter assembly in fluid communication with the contaminated-air inlet, a blower assembly in fluid communication with the filter assembly via a duct, and containing a filtered-air outlet, and a filtered-air passageway in fluid communication with the blower assembly outlet and leading to breathing headgear. The blower assembly is vibrationally isolated from the filtering device shell by being only attached to the filtering device shell by the duct. The duct includes an elastomeric material.
摘要:
An oxygen supply system for a station operator, comprising an oxygen mask for being operably connected to an oxygen cylinder; a pouch operably connected to the oxygen mask; carbon dioxide scrubber disposed inside the pouch; a first one-way valve operably connected between the oxygen mask and the pouch for allowing one-way flow of gases exhaled by the operator from the oxygen mask to the pouch; and a second one-way valve operably connected between the oxygen mask and the pouch for allowing one-way flow of gases from the pouch to the operator.
摘要:
Provided is a portable air purifier, which includes: a mask part; a first connecting hose having one end connected to the mask part; a second connection hose in which the first connection hose is installed, and at least part of which has an opening for introducing external air; an air purification module that purifies the introduced external air to a predetermined temperature condition and discharges the purified air to the first connecting hose; and a power supply unit configured to supply power to the heater. Since the air purification module for removing poisonous gases or biochemical pollutants through a catalytic reaction of a metal catalyst layer can be semi-permanently used, the conventional inconvenience of carrying an extra canister is removed.
摘要:
A sorbent canister heat exchanger is provided which can be used for removig carbon dioxide from rcirculated air in manned space craft or submarines. The sorbent canister heat exchanger includes a frame (20) defining a volumetric body (21) with substantially flat upper (26) and lower (27) sides that each has inwardly extending ribs (35) defining airflow pathways (350), sorbent material (60), heat exchange elements (40) disposed within an interior (210) of the body (21) and partition walls (80) disposed to run perpendicularly with respect to the ribs (35) and to transmit loading between the upper (26) and the lower (27) sides from the ribs (35) and through the interior (210) of the body (21).