Buy-One-Get-One Free! Buy 1 Silver Air Revitalizer and get the 2nd one for free!*see bottom of full description for details The Air Revitalizer is a water filtering air freshener & purifier. It uses water as the filter, no more expensive filters that clog or leak dust, germs, and bacteria back into your home. While removing things like smoke, cooking odors, pet odors, and all other harmful particles floating in your air.