NOTES: This mask, constructed using a Kops type face piece, was issued as a riot control agent mask for use by police and other law enforcement organizations. This mask is among the many early US non-combatant masks based directly on designs that were also adopted by the US military.

NOTES: This mask, constructed using a Kops type face piece, was used for industrial applications. The example pictured to the right used a canister Type GME-1 for protection against acid gases and organic vapors.

NOTES: This early industrial mask was made by the E.D. Bullard company in the 1930s. This particular example was most likely used as a supplied air respirator, however the face piece for this mask was used for several different industrial protective masks.

NOTES: This early industrial mask was most likely used for protection against dust or spray, as it used a simple design of molded sheet rubber which only covered the wearers face. A small filter was fixed on the front of the mask and a flapper type exhale valve was positioned in the chin area.

NOTES: This mask, also manufactured by Pulmosan Safety, is another early industrial mask which was also looked at by the US military. The mask's face piece was the basis for the US E28R37 Airplane Pilot's Gas Mask and also the E32R35 Training Gas Mask.

NOTES: This mask is another early industrial respirator manufactured by Pulmosan Safety. Like the above mask, it used a molded rubber face piece with a filter mounted in the chin position and an exhale valve on the front. Like most other early Pulmosan industrial gas masks, this type is also quite rare today.

NOTES: This mask is most likely another type of Comfo Respirator for protection while sand blasting or some other similar task. The filters and flapper type exhale valve are the same as the above mask.

NOTES: This small half-mask is interesting as it may have been used for both industrial and early military applications. This simple mask used a filter made from a natural sponge, which could be soaked in anti-gas solution prior to use. A small exhale check valve was also present on the top left side of the mask. This mask was typically worn with a pair of protective Cover's goggles.

NOTES: This mask, made by Willson, is an early industrial mask to protect against Ammonia and other similar industrial hazards. This mask used a face piece design similar to the US Army's M2 face piece. Several masks made by Willson during the WWII era used face pieces that closely resembled many military types.

NOTES: This industrial protective mask was made by Burell and used with a MSA Type GMD-SS canister for use against ammonia, dusts, mists and fogs. This face piece was also used as the basis for the US Army/Navy Mark I Diaphragm Mask, however the military version used a fabricized rubber face piece instead. The design of the mask is otherwise almost identical.

NOTES: This mask, also made by the Burell company was another industrial mask for use against ammonia and other industrial hazards. The mask used a rubber face piece and head harness, with an exhale valve in front very similar to the "Connel" type exhale valves used with many military masks from this time.

NOTES: This MSA Abrasives mask was designed for use during sand blasting and other similar activities. The mask had a special glass visor that could be closed for extra protection against abrasive over-spray (roll-over image at right) and was most likely always used with a supplied air system.

NOTES: This mask is another gas mask made by LEECO (Lake Erie Chemical Company) for use against tear gas and nauseating gas. The mask was made from gray rubber and featured a button style exhale valve on the left side of the face piece.

NOTES: The Pulmosan AL 170 Airline Mask used a face piece identical to the LEECO No. 45 Gas Mask (above). This mask was used with a supplied air system aboard aircrafts.

NOTES: The ACME Full Vision gas mask was used as the basic for many different industrial masks and also for some gas masks used for protection against military agents (see below). The mask's face piece was constructed with two large glass windows giving the wearer and excellent field of view. The mask was used with both a hose and filter box as well as with a filter canister attached directly to the face piece.

NOTES: This version of the ACME Full Vision Gas Mask came equipped with a Chin Style 15-M filter canister designated for protection against "warfare gases, vapors and smokes". This mask may have been adopted for use by the US military at some point, but was most likely just a commercially sold mask that could be used with a special canister for warfare agents.

NOTES: The All Service Gas Mask was first introduced by Mine Safety Appliances in the 1920s. The example pictured at right is an early example that used a fabric and leather head harness. The All Service design was very successful, and went on to be used for several decades for many different industrial applications, as well for the US military as a special purpose mask. The All Service face piece was also used for many different rebreather units and tear gas masks.

NOTES: This version of the All Service Gas Mask is a later example that used a rubber head harness instead of the early fabric and leather type.

NOTES: This rare version of the MSA All Service Gas Mask was entirely from white rubber. This mask may have been used as a special purpose mask where it needed to be easily separated from other masks made from the standard black rubber.

NOTES: This version of the MSA All Service Gas Mask was equipped with a circular speech diaphragm on the front of the mask. Overall the mask was identical to the regular All Service mask. This face piece type was also commonly used with several MSA rebreather units.

NOTES: This mask, also made by MSA, is a tear gas mask based on the MSA All Service Face Piece. The mask used a cylindrical filter canister that was housed in a rubber cup on the front of the mask. Two circular exhale valves were also present on either side of the mask.

NOTES: This mask is basically identical to the above version, but was equipped with a large speech diaphragm on the front.

NOTES: This mask is another riot control mask based on the common MSA All Service face piece. However this version used a different assembly for attaching filter canisters. This mask was most likely an updated version of the above two riot control masks.

NOTES: The MSA Chemox Oxygen Breathing Apparatus was a commonly used rebreather for industrial applications. The unit was used with the MSA All Service Face Piece and came in a large wooden trunk, similar to most other US made rebreather units during this time (see DETAILS).

NOTES: This early Davis gas mask was used with an ammonia filter and was made entirely from orange colored rubber, as with many Davis Gas Mask from this time period. This particular mask is interesting because its face piece closely resembles the US Army M2 type face piece.

NOTES: This early Davis gas mask was another brightly colored industrial mask. This mask came equipped with a Victor type filter canister.

NOTES: This interesting mask dates from the late 1950s and was made by Mine Safety Appliances. It is most likely a commercial smoke mask for flight crews. The mask was intended to be used with a forced air supply system, which was typically found on planes and inside armored vehicles. Circular exhale valves are present on either side of the mask, and a microphone was also integrated in place of a speech diaphragm. This mask was most likely examined for use by the US military, but was never put into production.

NOTES: This mask, also made by Mine Safety Appliances, was manufactured around the same time as the above mask. It used a green rubber face piece with two plastic eye pieces and dual filter canisters very similar to the US Navy Diaphragm Gas Mask, Mark V (US-049). A combination exhale valve/speech diaphragm was positioned on the front of this mask. This mask was most likely a commerically used mask to protect against industrial hazards.

NOTES: The MSA All Service Gas Mask Model S was a standard MSA face piece used with various types of protective respirators and tear gas masks during the 1970s. It used a large clear visor and could be used with a chin mounter filter canister or a filter canister and hose tube.

NOTES: This mask is very similar to the above mask, but was most likely used for industrial protection. As with many commercially available masks, they were used for various applications, and were sold with filters for specific uses. This mask was most likely manufactured by Willson.

NOTES: This mask is a modern type MSA respirator used with a battery powered, forced air filter pack. This type of system helped force filtered air into the mask which reduced breathing resistance and helped keep the wearer cool. A similar concept was employed by the US military for use with some tank masks and helicopter masks.

NOTES: This modern MSA mask was obviously based on the same design as the US Navy MCU-2/P, and was used mainly by police and corrections officers, as well as SWAT teams. The mask was typically equipped with filters for tear gases and other riot control agents. It is very similar to the MSA Millenium Mask.

NOTES: The Scott MCU-1/P is a commercially available mask that used a full face shield and a fabric head net for suspension. This mask may have been the predecessor to the Navy's MCU-2/P, however there is not much of a resemblance.