Non-medical 90% Baumwolle / 8% PROLEN®Siltex (Polypropylen) / 2% Elasthan Nose, mouth, chin zone: PROLEN®Siltex antibacterial fibres containing silver ions can filter small particles from air Cheek zone: knitted mesh allows for air circulation Soft, lightweight and breathable, very comfortable to wear and ideal for people with skin sensitive allergies Ear loops sit nicely behind the ear and can be worn for hours Re-usable: PROLEN®Siltex retains its antibacterial properties for 20 washes. This mask lets air in easily and keeps moisture out, letting you breathe easier whilst keeping dust and other pollutants out Standard 100 by Oekotex® certified Individually bagged Hand wash and air dry only PROLEN®Siltex is a polypropylene yarn treated with a permanent antibacterial additive, based on silver ions