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Filter mask

A filter mask and filter element technology, applied in the direction of breathing filters, breathing masks, respiratory protection containers, etc., can solve the problems of expensive, uncomfortable to wear, unable to solve temporary filtration, etc.

Inactive Publication Date: 2006-08-09
XCAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While face shields have been developed for use in these environments, such as that shown in U.S. Patent No. 5,628,308, they are uncomfortable to wear and expensive
Additionally, they do not address the need for light, temporary filtration to remove toxic gases such as hydrogen cyanide from the air the wearer breathes

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] As shown in Figure 1, the filtering face mask 10 of the present invention comprises, in its simplest form, a filter element 12 and a retainer 14 for keeping the filter element 12 in place between the nose and mouth of the wearer 16. above. Filter element 12 includes a container 18 having a cover layer 20 of flexible, breathable material, which is preferably soft and non-irritating to the wearer's skin. One such material is polyester, which is suitable due to its non-absorbent properties. The cover 20 shown in FIG. 1 is in the form of a bag, and is preferably about 5.5 to 6.5 inches laterally, between about 4 and 6 inches vertically, and about 0.75 inches to 1.5 inches thick when it is laid flat, so as to adequately cover the The wearer's nose and mouth. Of course, the cover layer can have larger dimensions as desired to provide greater thickness or span across the wearer's face. Preferably, to allow the use of small polystyrene beads therein and to provide good breat...

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PUM

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Abstract

A filter mask is provided for use in environments of smoke and toxic gas which includes a filter element having a filling of shiftable bodies coated with a flowable, aloe vera extract having a gel-like viscosity and a retainer for holding the filter element over the mouth and nose of the wearer. The coating has a pH level which is alkaline which aids in the reduction of toxic gases such as hydrogen cyanide, hydrogen chloride and acrolein inhaled by the wearer. The filter element is preferably replacably mounted to the retainer, and may be provided as a bag-like flexible fabric container adapted to shift so as to conform to the face of the wearer. The filter element itself is adaptable to a variety of different uses for removing smoke particulates and toxic gases from air flowing therethrough.

Description

technical field [0001] The present invention relates broadly to a mask worn under fire and smoke conditions to filter harmful particles and gases. More particularly, it relates to a face mask comprising a lightweight and disposable filter element comprising a carrier element and an aloe vera gel coating for removing soot particles and noxious gases during breathing for Temp work and escape. Background technique [0002] It has long been recognized that the hazards to persons involved in a fire include death and injury due to smoke inhalation. In addition to injuries attributed to burns, one of the leading causes of death and injury during fires is smoke inhalation. In many fire and smoke environments, escape is possible only if sufficient oxygen is available, but individuals are overwhelmed by smoke inhalation or toxic fumes. Devices aimed at filtering soot particles include US Patent Nos. 4,402,317 and 4,854,314. While the devices shown therein are effective in filterin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62B7/00A62B7/10A62B18/02A62B18/08A62B23/02
CPCA62B23/025A62B18/084
Inventor P·芬奇E·埃利森
Owner XCAPER IND