Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and zinc (hydr)oxide. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.

Abstract: A one part, solids containing decontamination blend composition comprises a solid acetyl donor coated with a compound that protects it from hydrolysis, a peroxygen source, optionally a catalyst, optionally a surfactant, and optionally a buffer. The decontamination blend composition is generally in a dry powder, particle, etc form or in a tablet, pill, etc form and is complete in and of itself in that no additional compounds are required prior to use and is readily distributed as a one package system. Upon the addition of water, a peroxygen compound such as hydrogen peroxide is formed, and peracetic acid is generated under alkaline conditions. The decontamination blend composition is particularly suitable for oxidizing various chemical and biological compounds thereby eradicating the same in situ as on surfaces, clothes, articles, and the like. Representative contaminants include mustard gas, nerve gas, bacterial toxins, anthrax, bird flu, and the like.

Abstract: A foraminated, laminated ballistic grill for armored vehicles has a hard outer layer of ballistic material with a plurality of projections having angled faces on the exposed surface. A ductile inner layer adapted to trap and contain ballistic fragments and projectiles backs the outer ballistic surface. A multiplicity of shaped foramina pass through the inner and outer layers to allow air flow into the grill, the foramina have a curved channel, wherein at least a portion of the channel is offset from the longitudinal axis of the inlet so a particle entering the inlet is forced to travel a curved tortuous path.