Due to a product update, some sizes of white filters will be replaced with a new version of the filter.
About the product
Notice: Can also be used with WoodyKnows Ultra Breathable Nasal Filters(New Model) frames, WoodyKnows Super Defense Nasal Filters(New Model), WoodyKnows Super Breathable Nasal Filters, and WoodyKnows Super Defense Max Nasal Filters' frames. No black retainer is needed. Replacement-filter packs do not contain filter frames, so these can NOT be used on their own.
Pure Air Wherever You Go!