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Ultra-low particulate air (ULPA) is a type of air filter. A ULPA filter can remove from the air at least 99.999% of dust, pollen, mold, bacteria and any airborne particles with a minimum particle penetration size of 120 nanometres (0.12 μm, ultrafine particles). A ULPA filter can remove—to a large extent but not 100%—oil smoke, tobacco smoke, rosin…
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ulpa filter air filters remove also dust particulate particles en 1822 extent hepa used media fibres minimum particle size see
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