Stick-on mask filters. Made in Korea
- Suitable for Bobo and Hasu Masks and most reusable masks, including 2D and 3D masks
- Certified BFE of 99.9% (ASTM)
- 3 layers with non-woven MB filter in the middle
- Outer layers are made of Spunbond fabric which is smooth and cool on skin
Instruction: 1) Use the provided double sided tape and stick to the left and right ends of the filter 2) Remove the backing of the other side of the double sided tape and paste the filter onto the interior of the mask such that both the nose and mouth are fully covered by the filter. 3) Change and dispose the filter when necessary.