Box of 5 Breathe easy : New filter construction and large surface area reduces breathing resistance making the 8835+ even easier to breathe through Cool and Comfortable : The 3M Cool Flow„¢ valve effectively removes exhaled air, reducing heat & moisture build up Better Fit : The new soft, pliable face seal forms comfortably onto a wide variety of face shapes and sizes, helping give an improved fit Adjustable red headbands indicate FFP3 protection level See Clearly : New clever face seal design is engineered to help minimise fogging of eyewear. Industry proven 3M¢ Cool Flow„¢ Valve directs humid Exhaled air away from eyewear