Yamamoto Optical YAMAMOTO DS2 Dust Mask 1 Box of 20 Pieces Nationally Certified Product 3200-CF

``Crossfit type'' (patent pending) that uses crossed belts to ensure a secure fit between the mask and face. Since it is held securely at the back of the head, it does not slip off even during intense work. By moving the side parts, you can adjust the stability and fit. It provides a stable fit regardless of gender or body type. Adopts a four-layer filter that is lightweight and gentle to the touch, achieving high repair efficiency. The collection efficiency is over 95%, and the product has passed the national certification "DS2" standard (TM790). A cup-shaped mask that provides plenty of space around your mouth. Environmentally friendly metal-less type that does not require separation. If you are having trouble with your mask slipping due to your facial expressions, conversations, or body movements, please give this a try.