2020 dhlreusable pm2.5 mouth mask dust respirator anti haze face masks cotton mouth dust haze anti pollution smoke allergy mascherine

*air pollution face mask with pm2.5 filters *with adjustable nose bridge and hook strap, fit a variety of face, comfortable to wear. *with breathing valve, it allows air to enter the body whilst keeping moisture out. it also keeps you away from toxins and harmful substances in the air. *reduce the risk of breathing in gases, noxious smells, pollen, smoke, dust and other harmful particles.