Carbon filters for reusable face masks.
PM 2.5 Carbon Filters for washable face masks.
- The first layer: Non-woven fabric
- The second layer: Melt blown cotton
- The third layer: Activated carbon fiber
- The fourth layer: Melt blown cotton
- The fifth layer: Non-woven fabric
- Adult 4.5 x 3 inches (11.5 cm x 8 cm), compatible with most adult masks.
- or Kids 4 x 2.5 inches.
IMPORTANT INFORMATION ABOUT SHIPPING:
Filter are shipped within 2-3 days business days with Economy Class Mail service with tracking. Shipping time is estimate ONLY. Your package may take longer to arrive due to covid-related delays with postal service. Choose Priority or Express shipping upgrade at the checkout for shorter transit time.
Shipping time to USA: 5-20 days (estimate only)
Shipping time to Canada: 5-20 days (estimate only)
Shipping overseas: 10-30 days (estimate only)