Our products are 3 Ply with melt-blown material to prevent droplets. They are produced in a hygienic environment.
3Ply structure: non-woven filter pad, breathable, windproof, sweat-absorption, comfortable and skin-friendly. Brings you a safe breathing experience.
Size: 9 * 12 cm / 3.54 * 4.72 inches, high compatibility, close fit, easy to insert or replace.
Wide Application: Mask filter can prevent airborne particles, dust, seasonal allergies,second-hand smoke.