Did you know that you can turn some ordinary kitchen supplies and rubber bands into masks with Airdog air purifiers? Try this at home Whenever there is a shortage of facial masks. Today, we will teach you step-by-step to produce facial masks at home. This may be a hidden bonus for Airdog owners to protect themselves from the COVID-19. The electrostatic effect will last about 6 hours. This could only be an emergency substitute in case you run out of regular masks. Please buy and wear qualified facial masks whenever it’s possible.