Nanotec Filter Refill <br><i>for ProSport Masks</i>

Nanotec Filter Refill
for ProSport Masks

Regular price $8.50
Shipping calculated at checkout.

A pack of 10 Nanotec Filters for use with our ProSport Masks. Available in two sizes, Adult and Kids. Keep your ProSport Mask protecting you at all times.

To ensure optimal protection, we recommend you replace your filter after each use.


- Pack of 10 Nanotec Filters
- Available in two sizes, Adult & Kids
- Filter Materials: Melt-blown cloth, nanofiber and non-woven cloth
- Outer Filter Materials: 94.5% Polyester, 5.5% Elastane
- Inner Filter Materials: 100% Cotton
- Filters last 12 hours
- Resistant to boiling water & alcohol


- Filter Measurements: 9.44" x 5.9" 

Blue Bear Shipping Policy

Blue Bear Protection is dedicated to shipping your products quickly and efficiently. 

  • ALL of our products ship directly from the USA
  • Most orders will arrive in 3-5 days, however due to the current COVID-19 crisis, some customers may experience delays, please be patient
  • We offer expedited 2-Day shipping via UPS, DHL and USPS, depending on your location
  • We currently only ship to the United States, we will be shipping internationally shortly, please stay tuned
  • Shipping times are calculated once the order has been fulfilled, not once the order has been placed 
  • Orders placed before 12 PM EST will ship the same day, orders placed after 12 PM EST will ship the following day
  • Orders placed on Friday after 12 PM EST will ship the following Monday

If you have any questions about your order, please reach out to our friendly customer service team here


Blue Bear Protection is here to help keep all of your bears safe. All orders from Blue Bear Protection come with our 100% Satisfaction Guarantee. If you are unsatisfied with your order, please fill out the form below within 30 days of receiving your order we will provide a full refund or send a replacement to you, free of charge. 

Customer Reviews

Based on 9 reviews
Rafael O.

Your product are very good and good quality, I shared your products with my family and they were very good product. Thank you,
Dr. Rafael Ortega

Vicki P.
Travel with Ease of Mind

These are great. I love the mask they fit into. I have a blue one and black one. Extremely comfortable. And while traveling on flights I feel protected with these liners. No problem keeping the mask on for the duration of the trip. The sport mask is ideal as well. So comfortable when I teach pilates or spin class.

Kristy S.
Great product

Great masks, well made, high quality.

Daniel L.


Stephen P.
Good filters

These are good replacement filters at a good price. Glad to find it cause it can get costly for mask upkeep.