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Bacterial filtration efficiency (BFE) is 99.9%. The size of the Korean high efficiency filter is 6.1 X 3.74 inch, which is larger than the Chinese PM2.5 filter (4.7 X 3.1 inch). Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
![[M-Free][All New][Made in Korea] 20PCS MB Melt-Blown Replaceable FACE Cover Filter high Efficiency[Similar or Better Than That pm2.5 Activated Carbon]: Health & Personal Care](https://images-na.ssl-images-amazon.com/images/I/9107s2j0KDL._AC_SL1500_.jpg)
![[M-Free][All New][Made in Korea] 20PCS MB Melt-Blown Replaceable FACE Cover Filter high Efficiency[Similar or Better Than That pm2.5 Activated Carbon]: Health & Personal Care](https://images-na.ssl-images-amazon.com/images/I/91%2BMC3OrjpL._AC_SL1500_.jpg)
![[M-Free][All New][Made in Korea] 20PCS MB Melt-Blown Replaceable FACE Cover Filter high Efficiency[Similar or Better Than That pm2.5 Activated Carbon]: Health & Personal Care](https://images-na.ssl-images-amazon.com/images/I/91LZCoP-ByL._AC_SL1500_.jpg)
![[M-Free][All New][Made in Korea] 20PCS MB Melt-Blown Replaceable FACE Cover Filter high Efficiency[Similar or Better Than That pm2.5 Activated Carbon]: Health & Personal Care](https://images-na.ssl-images-amazon.com/images/I/71hurYg0aLL._AC_SL1500_.jpg)