http://www.whdolphin.com/face-mask/ Face Mask manufacturers Article No.: FM003 Disposable Visor Face Mask . Description Material was made of SPP+Melt Blow+SPP -Nose clip, 90cm strip *1.8cm -Colour: White/blue/green/ -17.5*9.5cm -BFE 95%/99% -20+20+25gsm or customized Protective and prevent virus flowed with Air Product for place used 路 Hospital 路 Laboratory 路 Food Industry 路 Dental Question: Does the face mask have fog? Answer: The mask with a plastic cover ,before use please pick off it. The transparet galss anti fog.Face Mask manufacturers website:http://www.whdolphin.com/face-mask/