To keep illnesses at bay, experts recommend venturing out wearing an anti-pollution mask ... for a mask with an intact seal and an expiratory valve to breathe out carbon dioxide, especially ...

Honeywell PM 2.5 Anti Pollution foldable face mask with easy exhalation valve: Rs 899/5 masks Honeywell's anti-pollution face mask is claimed to be a five-in-one solution to prevent against the ...

As one technician at Respro, the market leader for anti-pollution masks ... It comes in four sizes, boasts two exhale valves (which allow the air you are breathing out to leave the mask) and ...