Another quick post here. There is a story by Markham Heid in Time of potential interest: You Asked: Is My Air Conditioner Killing Me? | TIME. A bit sensationalist as a headline but has some good discussion and quotes in it including some interesting comments from Mark Mendell about indoor microbes.
Very interesting article. Hit my conscience, though, about aircons being really bad for the planet. Hopefully, ‘going green’ will be mandatory across all manufacturers soon.