100% natural biodegradable merino face mask filter inserts. Pack includes 8 filters.
(Can be used with the reusable Nanoknit Face Mask UWM006)
The antibacterial and antimicrobial properties of the HELIX.iso filters naturally resist and reduce the growth of bacteria and microbes on the fibre surface. The Helix.iso Filter matrix has extremely low breathing resistance, making it exceptionally easy to breathe through. Using one filter insert will capture more than 80% of particles 3 micron and larger.