1.Package:30pack/bag, Filter Size:12 * 8 cm/4.72 * 3.15 inches.
2.Five layers Filter Material: 2*Anti-sticking cloth, 1 *Filter cloth, 1 * Activated Carbon and 1 * Efficient filter cloth
3. 5 Layers :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.
4. Filter insert can not be cleaned and should be replaced every 2-3 days.
5. When film or sticky sediment stains emerge, please replace the filter.