Cambridge Mask Co Pro Anti Pollution N99 Washable Military Grade Respirator with Adjustable Straps Trusted lab tested British Military Filtration Technology filters almost 100% of pollution, gases, and bacteria and viruses. Ideal for people at risk of respiratory diseases, living in or travelling to areas with high air pollution / smoke levels Protection against harmful gases, odours, all PM; PM2.5, PM0.3, pollen, smoke, allergens and pathogens The world's most trusted reusable anti pollution mask now with adjustable straps, perfect for travel, especially to China or India. Presented in a slimline tin for storage, fashion friendly designs available in 5 sizes suitable for the whole family! <span class="a-text-bold">99.7%</span> average <span class="a-text-bold">particulate filtration</span> down to 0.3 microns Anyone <span class="a-text-bold">exposed to </span>urban environments with <span class="a-text-bold">high air pollution levels</span>  any big city often has higher air pollution. You can find a number of apps and websites to tell you the air quality in your area. People in <span class="a-text-bold">at risk groups for respiratory disease</span>, including children, elderly, pregnant women and those with existing respiratory conditions. <span class="a-text-bold">Hobbyists and DIY</span> such as woodworking and sanding. Anyone travelling to<span class="a-text-bold"> regions known for poor air quality</span> such as China and India. Anyone seeking protection for <span class="a-text-bold">airborne irritants</span> such as <span class="a-text-bold">Dust</span> and <span class="a-text-bold">mould</span>. Almost <span class="a-text-bold">100%</span> of <span class="a-text-bold">Particulate Matter (PM)</span> including <span class="a-text-bold">PM10, PM2.5 </span>and<span class="a-text-bold"> PM0.3</span>. These are the sort of particles you find in coal dust from power stations, diesel exhaust fumes, factory emissions and from construction works. Almost <span class="a-text-bold">100%</span> of<span class="a-text-bold"> gas based air pollution</span>, including odours such as <span class="a-text-bold">Volatile Organic Compounds (VOCs), Ozone, Benzathine, </span>and<span class="a-text-bold"> Formaldehyde</span>. These particulates you can find in petrol fumes, chemical emissions and from many industrial processes. Almost <span class="a-text-bold">100%</span> of <span class="a-text-bold">harmful pathogens</span> such as <span class="a-text-bold">viruses and bacteria.</span> Other <span class="a-text-bold">airborne irritants</span> or <span class="a-text-bold">allergens</span> such as<span class="a-text-bold"> Dust, mould spores, some odours, pet allergens and pollen.</span>