All day comfort meets >99% filtration. Featuring washable mask skins and botanical filters certified by an FDA approved MedTech lab which last up to 28 days. Switch your valves on or off with block-out technology, and clean your mask on the go inside the copper carry bag which destroys bacteria. Lasting up to 28 days, AusAir's filters have been independently certified by FDA registered and ISO 17025 accredited Nelson Labs, the leading global provider of microbiological laboratory testing for MedTech and pharmaceutical companies. Filters >99% of: Bacteria and Viruses, Air Pollution including PM0.1, Pollen and Fine Dust, Bushfire Smoke and Organic Odours and Vapours. Featuring adjustable cushioned earloops, memory nose foam, flexible broad-span nose wire and breathable filter media. Filters embedded with natural extracts sustainably sourced from Australian farms. Enjoy subtle scents designed to enhance your experience.