The particle control masks feature a large breathing chamber for maximum comfort while offering complete facial width coverage and a "gap guard" to control particulation from the neck. These masks provide excellent particle and bacterial filtration. Pouch style with Gore CleanNet* filter media. Masks are double-bagged.
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.