The wearer of a typical gas mask must exert extra effort to breathe, and some of the exhaled air is re-inhaled due to the dead space between the facepiece and the user's face. Filter Do not use it for firefighting. m17 gas mask filter Skip to the beginning of the images gallery. Seeking to improve on the Black Veil respirator, Cluny MacPherson created a mask made of chemical-absorbing fabric which fitted over the entire head. The reverse side of the M13A2 filter pack. This prototype was scrapped and the XM27 is considered by collectors, especially the masks made of clear silicone rubber, as some of the rarest gas masks known to exist.[7]. An unmatched pair would lead to premature exhaustion of one of the filter elements. A gas mask is a mask used to protect the wearer from inhaling airborne pollutants and toxic gases. [40], Many civilians learned how to use gas masks through the civil defense department, but children received most gas mask education in school drills. A variety of items, depending upon the mission, were issued with the mask and stored in the mask carrier such as a waterproof bag that would protect the mask's filters from water damage during immersion. 3 of the initialRotary-Actuated prototypes were procured for testing purposes. 1st ed. The "hidden" manufacturer's stamp near the internal filter. If you want on-line package tracking or insurance for your package then add them to your cart from the table above. Next, open the towelette and wipe away from the body for one minute with packet number one followed by two minutes with packet number two. The Rotary-Actuated model also had problems with the rotary lever being difficult to operate, though it was still preferred over the Push-Pull design. In summer and autumn 1915, Edward Harrison, Bertram Lambert and John Sadd developed the Large Box Respirator. One such variant was the XM27[6] created in 1966. After the introduction of the ABC-M17, research went into developing an updated variation of the mask that would allow the wearer to drink and resuscitate gas casualties while wearing the mask without breaking the seal. These are new in the original wrap and dated 1972. WE SHIP TO U.S. However, the filters should be treated as hazardous waste when disposed of due to the chromium VI content. A contract was secured with Westinghouse Electric Co. UnderSeas Division on April 1st, 1964. Though it was quickly removed from the design within a year or two of the introduction of the ABC-M17. Gas Masks The original design for the lenses utilized a semi-triangular sheet of polycarbonate sandwiched between a rubber skirt and a aluminum frame. However, worn properly, it provides added alpha and beta dust inhalation protection, and soldiers should wear it in all known situations until the contamination is identified. The carrier was always worn on the left side of the body in the hip, shoulder, or belt carrying configurations. Language links are at the top of the page across from the title. That is when the rubber of the mask retains a memory of a position when stored in that position for a long period of time. Then it would be wiped onto the inner surface of the lenses of the mask. The tape is part of a six VHS tape set, published in 2001 by Dr. Ed Hindson and the Jerry Falwell Industries.