PM2.5 Filter - 10 pieces

Specifications:

-10 pieces ( €0,50 piece ) 
-Suitable for face masks with a filter opening
-The filters are 5-layer with activated carbon filters
-Protects you by blocking 98.2% non-oil-based particles in the air.
-The filter will last 5 to 7 days - then discard
-Do not use while sleeping
-Not suitable for children under 2 years old


How do I use the filters?
Wash your hands. Place the filter through the openings on the side in the mouthpiece. Make sure the filter is completely flat.