Mumbai airport toilets are being cleaned by bacteria

Instead of using your usual chemicals and cleaners to disinfect toilets, the Mumbai International Airport (Chhatrapati Shivaji International Airport) has enlisted the help of bacteria and various microorganisms to clean 200 toilets, urinals, and a total of 4,000 square meters of surface area in Terminal 2. Flush a toilet and green chemical is released instead of water; water is used only when the toilets are being cleaned manually. As a result, the airport is saving 100,000 liters of water a day.

Photo from APAO India