PM2.5 Disposable Mask Filter - [40pcs] Set of replaceable filters with 5 filter layers, soft and breathable material, anti-fog and anti-dust, for children

MAXIMUM SAFETY AND PROTECTION - The filter effectively prevents any contact with harmful airborne substances when using the mask. FILTRATION - Innovative 5-layer filtration technology provides effective protection against harmful agents. MULTIPLE USES - Suitable for all kinds of jobs that require wearing masks for extended periods, such as doctors, office workers, laboratory staff, medical personnel, waiters, or shop employees. Ideal for crowded places, daily outings, pollen season, cycling, running, biking, or outdoor activities. UNIVERSAL DESIGN - Compatible with all types of masks available on the market. 100% SATISFACTION GUARANTEED - Buy risk-free. If you are not satisfied, we will refund your money.