This filter refill pack includes 3 replacement HELIX.iso filters.

• Each refill pack is individually packed in a protective recyclable clam-shell. This ensures the refill filters are always well-protected. The pack is labelled and includes informative and easy-to-follow information.
• Filters are available in one size only and are designed to fit both of our face mask sizes.

The Tussock Ridge Merino Face Mask with HELIX.iso Filter is sold separately.