How effective are PM2.5 Filters?
These filters are tested to KN95 standards and work effectively to filter out hazardous particles in the air. PM2.5 Filter coupled with cloth face mask have proven to be effective against nano-particles.
Does this filter make it harder to breathe?
These filters provide the same level of protection with less resistance during inhalation as compared to the N95 and KN95 respirators. Laboratory test showed that the maximum resistance during inhalation was 25% less than a N95 respirator.
Does it work only against Covid-19?
This filter is not only effective against nano-particles but when combined with a mask, it is also effective against water droplets, airborne particles, smoke, dust, pollutants and vehicle exhaust.