A respiratory protection hood having a sealed flexible shell including a pressurized oxygen vessel provided with a calibrated output opening leading into the inside space of the flexible shell and a device for trapping at least one portion of the carbon dioxide exhaled by the user that includes a cartridge for adsorbing carbon dioxide having a perforated tube arranged around a volume of carbon dioxide absorbing material. At least one portion of the perforated tube being arranged around the volume of absorbent material in direct communication with the inside space of the hood.

A respiratory protection hood having a sealed flexible shell including a pressurized oxygen vessel provided with a calibrated output opening leading into the inside space of the flexible shell and a device for trapping at least one portion of the carbon dioxide exhaled by the user that includes a cartridge for adsorbing carbon dioxide having a perforated tube arranged around a volume of carbon dioxide absorbing material. At least one portion of the perforated tube being arranged around the volume of absorbent material in direct communication with the inside space of the hood.

A respiration device is provided configured to kill infectious virus or other air borne contagion before it enters the user's airways. The respiration device comprises a wearable mask portion, an evacuation filter in fluid connection to the wearable mask portion; and at least one UV (ultraviolet) cartridge in fluid connection to the wearable mask portion. The UV cartridge comprises a housing having an inlet at a first end and an outlet at a second end opposite the first end; a series of UV bulbs located within the housing; and a powering means. Ambient air enters the respirator device through the inlet and is subject to UV radiation emitted from the series of UV bulbs such that the ambient air becomes sterilized air. Sterilized air exits the UV cartridge and enters the wearable mask portion via the outlet. A user is able to inhale the sterilized air entering the mask portion and exhale the used air through the evacuation filter.

A respiration device is provided configured to kill infectious virus or other air borne contagion before it enters the user's airways. The respiration device comprises a wearable mask portion, an evacuation filter in fluid connection to the wearable mask portion; and at least one UV (ultraviolet) cartridge in fluid connection to the wearable mask portion. The UV cartridge comprises a housing having an inlet at a first end and an outlet at a second end opposite the first end; a series of UV bulbs located within the housing; and a powering means. Ambient air enters the respirator device through the inlet and is subject to UV radiation emitted from the series of UV bulbs such that the ambient air becomes sterilized air. Sterilized air exits the UV cartridge and enters the wearable mask portion via the outlet. A user is able to inhale the sterilized air entering the mask portion and exhale the used air through the evacuation filter.

The present invention relates to a protective face mask and filtration article, a method for using a protective face mask and filtration article, and a design for manufacturing. In particular, the invention relates to a self-contained, mobile, battery-powered bioactive and filtering breathing appliance that provides broad spectrum antimicrobial and allergic protection via an atomized biocidal agent steam/vapor and a torturous hydrophilic filtration article that sterilizes incoming air and captures debris. To this end, antimicrobial activity and filtration functions leverage a redundancy of means/methods comprised of antimicrobial hydrogen peroxide liquid/vapor/steam and an iodized salt containing hydrophilic filtration article. The present invention is a wearable apparatus that sterilizes incoming air by capturing, neutralizing and destroying airborne pathogens and other particulate matter and pumps sterilized oxygen/air for natural, unlabored breathing by the wearer. The present invention further relates to a production method thereof.

A cartridge comprising layers of adsorbent sheet is described. The cartridge includes an indicator that characterizes the consumption state of the adsorbent within the cartridge. The indicator is applied in a way such that discrete areas of indicator are visible. These discontinuous areas of indicator may be applied to the outside surface of the cartridge. Alternatively, the discontinuous areas may be formed by cutting windows in the outermost layer of the cartridge and either coating indicator on the layer beneath the window, placing an indicator layer between the window and the layer beneath it or filling the window with an indicating plug of material so that the indicator is visible from the outside of the cartridge. The indicator layer and indicator plug embodiments allow the use of any indicator with any adsorbent.

A cartridge comprising layers of adsorbent sheet is described. The cartridge includes an indicator that characterizes the consumption state of the adsorbent within the cartridge. The indicator is applied in a way such that discrete areas of indicator are visible. These discontinuous areas of indicator may be applied to the outside surface of the cartridge. Alternatively, the discontinuous areas may be formed by cutting windows in the outermost layer of the cartridge and either coating indicator on the layer beneath the window, placing an indicator layer between the window and the layer beneath it or filling the window with an indicating plug of material so that the indicator is visible from the outside of the cartridge. The indicator layer and indicator plug embodiments allow the use of any indicator with any adsorbent.

Portable containment device having a chamber which further includes a first end, a second end, and a vertical wall, wherein a filter is arranged at the second end to entrap airborne particles emitted into an opening formed at the first end of the portable containment device.

Portable containment device having a chamber which further includes a first end, a second end, and a vertical wall, wherein a filter is arranged at the second end to entrap airborne particles emitted into an opening formed at the first end of the portable containment device.

Disclosed is a waterseal virus-killing mask, including a mask body, a liquid virus-killing assembly, and two elastic ear loops. A breather valve is disposed on an outer surface of the mask body. The two elastic ear loops are disposed on two sides of the mask body, respectively. The liquid virus-killing assembly includes a U-shaped tube within which disinfectant is provided. A disinfectant replenishing tube is vertically disposed at an upper end in the middle of the U-shaped tube. A first horizontal straight tube and a second horizontal straight tube are separately disposed at two ends of the U-shaped tube. A left end of the first horizontal straight tube is in communication with an opening of the breather valve. A first filter mesh used to separate water and air is disposed at a right end of the first horizontal straight tube.