This way, a gas mask filter cartridge against organic and inorganic gas and vapor, acids and ammonia – and its derivatives – will be labeled ABEK with a color code brown, grey, yellow, green. Some respirator filter cartridges can combine simultaneously several gases. Nitric oxide, nitrogen oxide, nitrous vapor Inorganic gases and vapours such as chlorine, hydrogen sulphide or hydrocyanic acid) Gases and vapours of organic compounds with a boiling point below 65☌ such as methanol, chloroform or perchloroethylene Organic gases and vapours (solvents) with boiling points above 65☌ such as white spirit, styrene or xylene In addition to the three efficiency levels, there is a specific codification composed by letters and colors for different types of toxic gas and substances. These gas mask filters feature a microporous structure made of active carbon with tiny capillaries for an enhanced purifying efficiency while reducing the breathing effort.Īs for particle filters, they are gathered into 3 efficiency classes, ensuring a purifying level (3 being the maximum protection level). Gas filters for APR respirators are especially designed to get protected against toxic substances. This breathing disturbance will determine the replacement. In a dusty environment, particulates filter will progressively clog and offer a higher and higher breathing resistance – without affecting the purifying power. Because of their hydrophobic characteristic they are water resistant and stop the thinnest particles. Particle filters for air purifying respirators (PAPR) feature a large parallel pleated purifying surface which avoid clogging risks in very dusty environments. The most effective protection is class P3 (filtration rate of 99.97%), which should be used as often as possible against tiny dust such as asbestos (level 1), ceramic fibres, and viruses (avian flu, H1N1 flu, coronavirus, etc.) and bacteria. They are gathered into 3 efficiency classes (P1, P2 or P3) that ensure a purifying level from 80% to 99.97%. Particle respiratory protection filters – also known as aerosol gas mask filters – are mainly used to protect users against dusts, particles, liquid and solid aerosols according to the EN143 standard. NOTE: These Russian 40mm GOST 3001 Breeze Filters are superior to widely available older Soviet filters because they do not contain asbestos.Sort By Set Descending Direction P3 respiratory protection filters (against dust) This product is brand new stock and is not surplus! Squeaky clean, mean, and ready for you without any prior owners, this is hot off the press from the manufacturers straight to your mailbox!įield Notes/Misty Supply Musings/Potential Uses/Trivia The inner layer is an activated carbon filter that absorbs gases and vapors such as organic compounds, acid gases, and ammonia.įilter media: Polypropylene, activated carbon, and cellulose The middle layer is a particulate filter that captures fine particles such as smoke, soot, and aerosols. The outer layer is a pre-filter that captures large particles such as dust, pollen, and hair. The filter has a unique design that consists of several layers of filter media, each with a specific function. It can operate in extreme temperatures ranging from -40☌ to +70☌, which makes it suitable for use in harsh environments. The filter is made from high-quality materials that are resistant to water, heat, and impact. It has a compact size and low weight, making it easy to carry and use in the field. The Russian 40mm GOST 3001 Breeze Filter is designed to fit a wide range of respirators that use 40mm GOST threading. Russian filters, now without the Asbestos!
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