Masks Features: Keep your face clean and neat ,protect your face against dust or any particles from environment. This pm 2.5 mask comes up with simple design and looks cool. This mask is Washable and Reusable. This face mask helps in Comfortable breathing. These masks come in One size and act as a best face mask for Men and Women This respirator face mask is 100% Brand New and High Quality Material: cotton + Activated carbon
My respirator has an exhalation valve, is that okay?
- An KN95 respirator with an exhalation valve does provide the same level of protection to the wearer as one that does not have a valve. The presence of an exhalation valve reduces exhalation resistance, which makes it easier to breathe (exhale). Some users feel that a respirator with an exhalation valve keeps the face cooler and reduces moisture build up inside the facepiece. However, respirators with exhalation valves should not be used in situations where a sterile field must be maintained (e.g., during an invasive procedure in an operating or procedure room) because the exhalation valve allows unfiltered exhaled air to escape into the sterile field