Yicare 12pcs Protective Mouth Filter Replacements Parts Activated Carbon Filter for Protective Fit Most Dust and Pollution Masks in The Market Bicycle Riding Mask

• 5 layer filter:The first layer blocks large particles. The second layer is an activated carbon filter layer that absorbs harmful chemicals. The third and fourth layers can filter 0.03 micron PM2.5 particles. The fifth layer is the inner layer of non-woven fabric, which is comfortable, breathable and resistant to dirt, so it can be worn more hygienically.
• Widely used:This mask filter can prevent airborne particles, seasonal allergies, smoke, pollution, ash, garden pollen, etc. Ideal for all outdoor and indoor sports such as running, jogging, cycling, cycling and motorcycle. Activities such as horse riding, hiking, skiing, snowboarding, paintball, mowing, and public transport.
• High Quality Material:Our filter is made of five layers of non-woven and activated charcoal microfiber. Easy to provide great protection against non-oil based aerosols and blocks particles from grinding, sanding, sweeping and filters out flour, pollen, metal and wood dust.
• Premium replacement mask:Dustproof mask made of activated carbon non-woven fabric.Nice Design.They are designed to filter out at least 95% of particulates larger than 0.3 microns in diameter.
• Compatible sizes:These replaceable activated carbon filters can separate up to 99% of dust, pollen, hazardous chemicals, smoke and heavy metal particles. It is also compatible with most dust sports masks on the market.

Specification Color:as picture Size: 4.9 inches x 4.2 inches (approximately) Quantity: 12pcs Products include: 12 *filters Remarks: 1. Due to the light and screen difference, the color may be slightly different from the picture. 2. Due to manual measurement, please allow 0.5-1cm difference. Thanks for your understanding.