SF Smart Mask- SFM30 is made up of 4 protective layers and can be used continuously for 30 days. SF Smart Mask is reusable for 30 days without the need to wash. Optionally can be wash 10 times with 30-40 C water without using chemical matter. SF Smart Mask- SFM30 kills 99,99% of target microorganisms. High Breathability Comfortable fit with adjustable ear loops Suitable for sensitive skin
