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Co oznaczają klasy P1 P2 P3 dla półmasek ochronnych
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What do the P1 P2 P3 classes mean for protective half masks?

Half masks are used to protect against dispersed small solid particles such as dusts, fumes, and mists (they do not protect against gases). Protective half masks made of nonwoven fabric are divided into three filtration efficiency classes: P1 – retain about 80% of particles smaller than 2 micrometers P2 – retain about 94% of particles smaller than 0.5 micrometers P3 – retain about 99.95% of particles smaller than 0.5 micrometers Protective half masks of classes P1, P2, P3 are tested in accordance with the requirements of standard PN-EN 149:2001.
Filtration class Maximum permissible concentration of contaminants (NDS) Filtration efficiency Type of aerosol Intended use
P1 4 x NDS 80% dust, fume, mist agricultural and food industry, use in construction, quarries, cement plants, wood industry during processing of softwood; protects against dusts: calcium carbonate, natural and synthetic graphite, gypsum, chalk, cement, plaster, marble, zinc oxide, plant pollens, cellulose, sulfur, cotton, ferrous metal filings, coal dust containing less than 10% free silica
P2 10 x NDS 94% dust, fume, mist P1 + dusts of asbestos, copper, barium, titanium, vanadium, chromium, manganese, hard wood dust, coal dust containing free silica above 10%, mining, chemical and metallurgical industries (version with an exhalation valve), during processing of hardwood
P3 30 x NDS 97% dust, fume, mist P1 + P2 + high concentrations of respirable dusts, protects during welding and soldering, protects against dusts containing: beryllium, antimony, arsenic, cadmium, cobalt, nickel, radium, strychnine, radioactive particles
Worth knowing Half masks cause an increase in inhalation resistance. The longer they are used, the more the accumulated dust makes breathing more difficult. Moreover, their effectiveness decreases as the concentration of carbon dioxide and water vapor between the facepiece of the half mask and the face (the so-called dead space) increases. The concentration of carbon dioxide in the dead space increases with each exhalation. Therefore masks should be replaced frequently. To improve user comfort, one-way exhalation valves are used, which accelerate gas circulation. When considering the purchase of a dust mask, it is worth choosing those equipped with this type of feature. For the mask's effectiveness and user comfort, proper fit of the mask is important. Leakage around the edge of the half mask results in an increase of the so-called total inward leakage and consequently a loss of effective filtration efficiency. Loss of seal can be caused, for example, by the user's facial hair.
30-day returns

30-day returns

Extended warranty up to 4 years

Extended warranty up to 4 years

Free shipping from 199 zł

Free shipping from 199 zł