The mask's plastic barrier has a proprietary anti-fog coating that minimizes fogging when the wearer is speaking or breathing. The anti-fog coating has already been applied to the masks, and the masks are ready to wear out of the box. 

The ClearMask™ brand was developed pre-pandemic starting in 2017 to optimize anti-fog effectiveness and full face visibility of the masks. The mask is designed for indoors settings and recommended for use at room temperature, in ventilated, low-humidity environments, such as indoor offices or clinics. The masks are also single-use only and are not intended to be reused.

Please note that wiping the mask’s plastic barrier down, with or without alcohol or any kind of cleaning agent, will remove and degrade the anti-fog coating.