Where to buy a mask

To buy a reusable cloth mask that is compatible with HELIX.iso™ drop-in filters, please contact one of our partners below.
Helix Filter Media pattern Face MaskNZ Wool

Sew your own mask

Click the links below to view the template and sewing instructions to sew your own mask that is compatible with HELIX.iso™ filters.

Pattern to make your own mask >>>

Sewing instructions for pattern >>>

How to fit the HELIX.iso™ filter >>>