Why Choose WoodyKnows Ultra Breathable (New Model)?- Filtering of airborne particles such as pollen, dust, mold, and dander

- Cutting-edge ultrathin filter (0.04mm), the mesh thread is as slender as 0.018 mm

- Natural shape and soft material for comfort and fit

- Drug-free protection, ultra breathable and discreet invisible designWhat's better about the New Model?- Disposable filter, no longer needs to be cleaned

- Softer frame material offers a comfortable fit

- Shorter and thinner connector offers greater discretion

- New black retainer frames further enhance invisibility

- Improved structure ensures a more secure filter and sealSelect the Right WoodyKnows ProductPlease review the product images above for guidance on how to differentiate Ultra Breathable, Super Defense,

Super Breathable, Super Defense Max, and Gas & Pollutant Reducing Nasal Filters.Select Your SizeI-R: XSmall round nostril

II-R: Small round nostril

III-R: Medium round nostril

IV-R: Large round nostril

I-S: XSmall slotted nostril

II-S: Small slotted nostril

III-S: Medium slotted nostril

IV-S: Large slotted nostrilPlease review the product images above for guidance on how to differentiate between round and slotted nostrils.More from WoodyKnows- First-time buyers are recommended to order the multipack-(IR/IIR/IIIR) or multipack-(IS/IIS/IIIS)

- Packaging Contents: 2 filter frames and 6 pairs of replacement filters, storage case, manual

- Replacement-filter packs are also available in the size checkbox of this listing. They do not contain filter frames, so they can NOT be used on their own

- Please search B00DLYR76M on Amazon for our latest Nasal Dilators for nasal congestion and snoring reliefPure Air Wherever You Go!