The exertion of breathing against the resistance of a filter coupled with the build-up of CO2 can be exhausting and lead to negative side effects like headaches, dizziness, and unnecessary exposure to moisture, which in turn, can foster micro-organisms and deterioration of mucus membranes.

The TOKK Personal Air Purifier can protect against the inhalation of microparticles PM2.5 with 95% filtration. A built-in fan draws in clean air and expells CO2 whilst lowering temperatures around the nose and mouth and reducing humidity within the mask by up to 40%.