Silver Cava Face Mask Deodorant is an innovative nanotechnology solution developed by scientists. Laboratory tested to provide long lasting protection against harmful microorganisms and unpleasant odors. We have developed an new formulation with silver and activated oxygen. Spray the interior of face mask, leave to dry. Use a few times a week. Once sprayed it starts to work immediately. Upon drying an ultra thin layer of silver is developed reducing face redness and rashes caused by wearing a mask.