To ensure optimal protection, we recommend you replace your filter after each use.
- Pack of 10 Nanotec Filters
- Filter Materials: 100% Polypropylene Fabric
- Filters last 12 hours
- Resistant to boiling water & alcohol
- Filter Measurements: 4.13" x 2.95"
Nanotec Filter Refill <br><i>for ProSport Masks</i>
We got these in mail speedily & BB actually answers customer emails & inquiries fast!
These filters are well made and breathable. I wish they were a little bit larger so they would fit nicely, and not move around in my mask.
Fantastic for flying
These filters are not like the one that comes with the pro sport mask,but they fit as well. It doesn’t say in English on the package that they are Kn95. Maybe the specifics on the certificate mean the same thing.They arrived promptly and I am happy with them. The mask itself is super comfortable, but this review is about the filters.