AirFlex Filter

About ONLY COMPATIBLE WITH AIRFLEX MASK RANGE All day comfort meets >99% filtration. Select from AusAir's range of botanical and blank filters, certified by an FDA approved MedTech lab. Each filter lasts up to 28 days. Filter Technology 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 Organic odours and vapours Click here to view the reports. Pack Content 4 x Blank Filters Features Memory nose foam Flexible broad-span nose wire Breathable filter media Botanical filter range Optional valve deactivation Replaceable filters lasting up to 28 days Certified protection >99% Compatible with all AusAir Mask Packs Size Guide To select the right size, measure the distance from your lower eyelid to your chin. Kids: 7.5 - 8.7cm Medium: 8.7 - 9.8cm Large: 9.8 - 11.7cm Extra Large: 11.7 - 13.9cm If you measure between two size categories we recommend choosing the larger size. When measuring ensure your mouth is closed and teeth are together. Shipping & Returns Free global shipping on orders over A$110. Global express shipping also available at checkout. Next day dispatch. We hope that all our customers will be satisfied with their AusAir purchase. However, if you have any issues please contact us at support@ausmask.com and our team will do their best to ensure you receive a great outcome. To read our full shipping and return policy click here.