Bromsgrove-based Harris make dust masks (more formally known as respirators) for protection against non-hazardous dusts. European standard EN149 defines various categories of dust mask - ranging from FFP1 which filters 80% of airborne particles, FFP2 which works at 94% of airborne particles to FFP3 at 99%. FFP1 is sufficient for paint dust, concrete/plaster and filler dust.
Saturday, 7 May 2016
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