描述
- 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.
- Note: Filter insert can not be cleaned and should be replaced every 1-2 days. When film or sticky sediment stains emerge.
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