Filti is highly-efficient: up to 95% on sub-micron particles.
3.25 x 4.75" size fits any Protect Styles or DIY face mask with pocket. Same size as standard PM 2.5. For child's size, trim the material with scissors.
Filti's nonwoven / nanofiber / 3-layer construction exceeds standard cloth and fabric materials in efficiency percentage. Filti filters up to 95% of 0.3 micron particles per TSI 8130 test standard. In contrast, competitor PM2.5's are only designed for large 2.5 micron dust particles.
Reduce the risk of droplet transmission with better filtration technology by Filti.
Note: Protect Styles products are not medical devices and are not intended for healthcare environments.
They are very comfortable, and beautiful , but in order to fully be more effective they have to be worn with the filter
These masks are breathable and my kids can wear them for long period of time with no complains. I’m happy.
Easy to put in and fit a variety of mask styles.
Filti Filter Refill 10-Pack
i have recommended these to everyone I know. They are comfortable to wear and fit perfect. Thumbs up 👍