Get the most out of your ORÅ Nano Mask with a stash of replacement filters. Each filter helps provide unwavering protection from PM2.5 particles thanks to a three-layer nanofiltration membrane, smaller than many viruses, including influenza.

We recommend ordering filters of the same size as your ORÅ Nano Mask.

The package contains: 

• 9 filters, each last 100-160 hours
  
• Fully recyclable

Note: Opened filter packs are not refundable.