Always be ready when you have the O2 Filter 9-Pack for your O2 Nano Mask. Each of these nine filters provides unwavering protection from PM2.5 particles. The O2 Filter contains a unique three-layer nanofiltration membrane that is smaller than many viruses, including influenza.
The O2 Filters are fully recyclable so you can be as good to the environment as you are to your lungs.
The O2 Filters are compatible with all sizes of the O2 Nano Mask.
- Includes 9 filters
- Fully recyclable