Neoprene masks

For more than a year thereafter the Army s standard service masks— both the M3 lightweight mask standardized earlier and its shortlived successor, the M5 combat mask—were made of neoprene. As in the case of any major change in specifications, there was an occasional hitch on the production lines. Some of these hitches were caused by the fact that batches of neoprene compound were not always uniform. A more critical problem arose when one contractor attempted to produce faceblanks for the complicated optical gas mask from neoprene. The neoprene stock refused to take molding acceptably, and nearly all the first batch of one thousand faceblanks failed to pass inspection. The contract had to be terminated. But with these exceptions, production of neoprene masks proceeded smoothly enough. 

Ethylene dibromide is a suspected human carcinogen and worker exposure by all routes should be carefiiUy controUed to levels as low as reasonably achievable (67). Ethylene dibromide causes severe blistering of the skin if contact is prolonged. Eye contact with the Hquid will cause pain, irritation, and temporary impairment of vision. Recommended safety equipment includes safety goggles, a NIOSH approved canister-type gas mask for organic vapors, neoprene gloves, and neoprene overshoes. In case of contact with ethylene dibromide, contaminated clothing and shoes should be removed and eyes or skin washed with plenty of water for at least 15 minutes. Contaminated clothes should be washed before reuse and contaminated shoes should be discarded. 

Health Hazards Information - Recommended Personal Protective Equipment U.S. Bu. Mines approved toxic dust mask chemical goggles rubber gloves neoprene-coated shoes Symptoms Following Erqrosure Inhalation produces slight toxic effects. Contact with eyes irritates eyes and causes skin rash General Treatment for Exposure INHALATION remove to fresh air. EYES wash with water for 20 min. call a physician. SKIN wash with water Toxicity by Inhalation (ThresholdLimit Value) Data not available Short-Term Exposure Limits Data not available Toxicity by Ingestion Grade 2 oral rat LDjq 820 mg/kg Late Toxicity Data not available Vapor (Gas) Irritant Characteristics Data not available Liquid or Solid Irritant Characteristics Data not available Odor Threshold Data not available. 

Even traces of ozone in the atmosphere cause severe discomfort to the workers, although individual tolerance varies greatly. If more concentrated ozone is inhaled, symptoms similar to those provoked by chlorine occur. Neoprene gas masks are available for protection of the workers. 

Do not eat, drink, or smoke while cleaning up. Use a self-contained respirator, a mask with filter (type A class 3) or a filtering mask (e.g., EN 405). Wear protective clothing, safety glasses, and impervious gloves (e.g., neoprene gloves). Ensure adequate ventilation. Avoid all sources of ignition, hot surfaces, and open flames (see also Section 7). 

For those personnel working in low risk areas, the use of a paper comfort mask should be strongly discouraged. These masks do not provide a good seal around the mouth and nose and do not conform to the standards required for protection from lead-in-air. As a minimum standard, only those paper masks specifically designed for particulates and welding (with neoprene face seals and adjustable nose clips)... 

Ammonium Perchlorate U.S. Bu. Mines approved toxic dust mask, chemical goggles, rubber gloves, neoprene-coated shoes. Move to fresh air. Wash with water. Wash with water for 20 minutes. 

Health care providers must avoid contaminating themselves while handling patients. Personal protective equipment, such as neoprene or nitrile gloves and gowns, should be used when decontaminating patients because hydrocarbons can penetrate nonpolar substances, such as latex and vinyl. Charcoal canridge masks should be used for respiratory protection when decontaminating patients. 

Although the late 1940s was not a time for many dramatic developments, the Chemical Corps was able to issue a new gas mask in 1947. Designated the M9 series, it was an improved version of the M5 mask (Figure 2-43). This mask utilized a superior synthetic rubber composition that worked better in cold weather than the neoprene of the earlier mask.30... 

The suspension sleeve may be silicone, latex, neoprene, or elastic. Since this sleeve does not provide medial-lateral stability, it requires inherent knee stability. The sleeve provides excellent suspension and helps mask the prosthetic socket trimlines. However, the sleeve is warm and may induce excessive perspiration and contribute to dermatological problems. As such, suspension sleeves may not be indicated for vascular patients. 

Protective gloves, especially rubber gloves made of natural rubber latex or synthetic rubber (e.g., neoprene rubber), as well as rubber parts of respiratory masks used with certain industrial solvent-based paints should also be remembered as potential causes of sensitization in painters. Preservatives in barrier creams, hand ointments and hand cleansers are other potential causes of dermatitis (Mathias 1984 Estlander et al. 1994, i996a,b). 

Protection Complete self-contained breathing apparatus recommended with face mask, suit, boots, and gloves (rubber, neoprene, or plasticized PVC). 

Delayed burning sensation. Gloves (butyl, neoprene), protective shield, mask... 

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