efficiency of #aircleaners is #unproven and the recommendation to use them is an unjustified hype.

I do not think this has been a correct assessment and therefor collected scientific studies about this

The collection is not finished, its an open and living thread. Let me know
2

#HarrietHall: Lecture 2: What is #CAM?
"#CAM stands for #complementary and #alternative #medicine."
"We once defined #CAM as things that aren't thaught in medical #schools, today we can define it as medicine that is so #unproven, #untested, or #implausible that it hasn't earned a place in conventional medicine."
https://www.youtube.com/watch?v=Yw4B6-OhGE8&list=PL8MfjLNsf_miVcNu6eJMNigAMNwQkk_B9&index=2