Select one of the particles
above to see how it affects your body
ULTRAFINE PARTICLES (Particles 0.003μ - 0.1μ) | 90% of all airborne particles
Ultrafine particles are airborne particles less than 0.1 microns in diameter. In sheer number, they represent more than 90% of all airborne pollutants. Ultrafine particles are inhaled and deposited directly into the lungs, where they penetrate tissue and can be absorbed directly into the bloodstream. Through the bloodstream, they can reach any organ or area of the human body.
FINE PARTICLES (PM2.5) | Greater than 9% of all airborne particles
Fine particles (also known as PM2.5) are particulate matter that is less than or equal to 2.5 microns in diameter. Fine particles penetrate deeply into the lungs, into areas known as small airways and into the primary air exchange areas of the lungs. Fine particles come from vehicle exhaust, gas and chemical reactions, tobacco smoke, burning candles and other indoor and outdoor sources.
COARSE PARTICLES (PM10) | Less than 1% of all airborne particles
Coarse particles (also known as PM10) are those with a diameter between 2.5 and 10 microns in diameter. Coarse particles are deposited almost exclusively in the nose and throat. They are not generally inhalable directly into the lungs. Examples of PM10 include coal dust, fly ash, some components of wood smoke, asbestos fibers, and roadside particles from tires and brakes. This category also includes dust, some pollen and mold spores.
