Five stage filters trap bacteria, pollutants, and allergens as small as 2.5 microns such as pollen, mold, smoke, and dust mites with greater than 95% efficiency.

Our items are guaranteed for their normal life under standard, non-commercial use.
Five stage filters trap bacteria, pollutants, and allergens as small as 2.5 microns such as pollen, mold, smoke, and dust mites with greater than 95% efficiency. Does not trap particles smaller than 2.5 microns in diameter such as small bacteria or viruses. Each removable, disposable filter slips securely into a sleeve on the mask and lasts for up to three uses. Imported. Includes seven 5" x 3" filters.