PM2.5 Activated Carbon Filters are best used with Tightly Spun cloth masks.
	
PM2.5 Activated Carbon Replaceable Anti Haze Filter. Filters size: 12x 8 cm/ 4.7 x 3.1 inches.
	
Five-layer Filtration: Multiple protection to isolate dust, multi-layer folding, good ventilation, double your protection with an additional filter.
	
Filtration technology: made of activated carbon and non-woven melt-blown filter cloth, five-layer filter system effectively keep away from PM 2.5 and a range of airborne contaminants.
	
Wide applications: Activated Carbon Filter anti airborne particles dust, smoke, pollution, ash, gardening pollen and so on, suitable for most occasions.
 
Make up of each filter:
	
First layer of spunbond cloth filters micron-level dust;
	
Second layer filters industrial pollutants, automobile exhaust, second-hand smoke, and pollen allergens.
	
Third layer of activated carbon cloth filters micron-level dust;
	
Fourth layer offers filter density for smaller material.
	
Fifth layer of spunbond cloth filters out all kinds of harmful substances.