Face Mask Replaceable Filters PM2.5 $2.00 Default Title Add to Cart Please fill in the form below if you'd like to be notified when it becomes available. Your Email Send This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Face Mask Replaceable Filters 5-layer Activated Carbon Filter 95% High Filtration Good for 50-70 hours of standard use Non-medical Disposable