Is your mask reusable ? => Yes, basically, every mask on our website is reusable except for the daily masks such as DAILY COLOR MASK (5 COLORS) and SOOMLAB LIGHT 3PLY MASK. These exceptional masks are recommended for once of use. Which Mask Is Reusable ? => Our Soomlab masks and other Nano filter mask we carry (except for Airqueen Breeze and MB filter mask) can be reused up to 10 times with our UVC sterilizer or proper sterilization by using 75% ethyl or 70% isopropyl without reducing filtration of Nano filter. Then...