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Reusing chemical-cartridge respirators

Article Abstract:

Several factors influence the chemical adsorption and desorption of chemical-cartridge respirators. These are the greater volatility which increases the risk of vapor migration; concurrent adsorption of water and gas vapors; amount of material adsorbed onto the cartridge during the first use; prolonged storage time; and vapor type. Users are also advised to check for volatile chemicals that may desorb during nonuse and against two or more chemicals adsorbed sequentially before reusing respirators.

Product information, Respiratory Protection Masks, Respiratory protective equipment, Gas masks

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A new biofilter gets its first real job

Article Abstract:

Envirogen Inc introduced its biotrickling filter at the North Island Navy Station by treating a methylene chloride-contaminated air stream from a spray-painting operation. In previous tests, the 5,000 ft3/min filter destroyed 99% of volatile organic compounds methyl ethyl ketone, acetone and methlylene chloride. The filter is structured as hollow, perforated plastic spheres with internal cross-members which provide a large surface area in which bacteria can metabolize the compounds.

Nuclear-Bio-Chem Med Filter Eqp, Biomedical filters

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E-A-R introduces new E-A-Rsoft earplugs

Article Abstract:

Aearo Company's E-A-R division has launched its new line of earplugs which feature the softest foam available. The lines, which include E-A-Rsoft Yellow Neons and E-A-Rsoft Yellow Neon Blasts feature an innovative foam formulation that offers low-pressure comfort with the highest NRR available, NRR33dB. The earplugs are available in corded and uncorded and in two sizes, Regular and Large.

Ear Protection Products, Ear protective devices

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