My wife is a cancer patient at M. D. Anderson in Huston Tx. Every room in the Holliday Inn has the waterfall faucets. There; you see many people warring mask because there immune systems are very low. These open top exposed faucets make me wonder who's DNA , Flu Germs, ect. may have settled there. The faucet in our room last week had a green tinted build up in the channel. I'll never understand how these faucets passed health guidelines for public places, being exposed to so many people.