PM2.5 Anti Pollution Mask Military Grade N99 Washable Dust Respirator Cotton Anti-dust Mouth Masks with Replaceable Filters for Men and Women (1 Mask + 5 Filters) (Blue flower)

-Dust pollution mask made of 100% cotton, with replacement filter-activated carbon filter.
-Free size stretch both men and women, ear clip can be adjusted freely.
-With one way high efficiency breathing valve, keeps you smooth breathing,Easy to release heat and moisture,Prevent bacteria from breeding.
-Invisable adjustable nose bridge keep the right height,Guard against fog,Suit for the men women with glasses.
-Reasonable thickness also provides an extra layer of warmth and face protection in cold weather.
-Protection against gases, smells, all PM; PM2.5, PM0.3, pollen, smoke and pathogens such as viruses and bacteria.
-Good for cycling,hiking,skiing,crafts,gardening,haze day protection,bus,pets & pet Grooming,travel and other outdoor activities,and household,hospital,public places etc.
-Suitable for all of us men, women, young, pregnant women, Teens, old people and weakened immune system.
-Package: 1pack mask+5 pcs replacement filter

99.4% average filtration of salt medium.
95.5% average filtration of oily medium.

-Suggest changing mask filter for 2-3 days on average depending on the level of pollution it is used in.This mask can be used for a long time. As long as the filter is changed, its effect is almost equal to a brand new mask.
-Remove the filter and then put the mask to neutral detergent diluted with water. Gentle knead, clean and dry it in the shadow.
-Please do not soak in water for a long time and do not bleach, so as not to cause the mask distortion and reduce the defensive effect.
-Depending on the usage, please adjust the washing time, general recommendation 1 to 2 weeks.