3 units of filters for .
Replaceable filter after 30 hours of intensive use.
N99 filter which guarantees an efficiency of 99.9% against PM2.5 and PM10 particles.
Particles PM2.5: particles from the burning of fuel such as diesel (100 times thinner than a human hair).
Particles PM10: small solid particles of dust, ash, soot, metal particles, cement or pollen, dispersed in the atmosphere, are formed mainly by inorganic compounds such as silicates and aluminates, heavy metals among others.
The filter consists of 6 layers, 2 outer layers of synthetic fabric, 2 inner layers of active carbon and two layers of cotton.
