Five Layer Protection: 1st layer of spun-bond melt-blown cloth filters micron-level dust. 2nd layer filters industrial pollutants, automobile exhaust, passive pollen allergens. 3rd layer of active carbon cloth filters micron-level dust. 4th layer offers filter density for smaller material. 5th layer of spun-bond Melt-blown cloth filters out all kinds of harmful substances.
Safety protection: Ideal to help protect the air you breathe and your mouth and face from Dust, Haze, Allergies, Pollution, Ash, Pollen, Gardening, Crafts. Suitable for adults.approx 12 * 8 cm/ 4.72 x 3.15 inches. Compatible with most dust masks, easy to insert or replace the original one.
Ideal for all outdoor and indoor sports, such as running, jogging, cycling, motorcycling, riding, hiking, skiing, snowboarding, paintball, lawn mowing, public transport, and other activities.
Warning Tips: PM2.5 Replacement Filters, disposable supplies cannot be washed. Recommend replacement of 1 or more times a day depending on your use. This filter is not intended for Emergency Medical personal, COVID19 Patients, or those in close proximity. PM2.5 Specifications is not the same as N95 standards.
Quantity: 500 / 1000 pieces