Particulate FFP2 approved N95 particulate respirator with exhalation Valve can withstand hot and humid conditions and the Double-shell construction resists Collapse. The LPD exhalation Valve makes it easier to breathe. It comes with a pre-stretched, ultrasonically welded, durable latex-free head strap and adjustable, contoured nosepiece. Fits snugly and comfortably will protect you against the coronavirus.