04-30-2020, 09:41 AM
(This post was last modified: 04-30-2020, 09:43 AM by barq2.
Edit Reason: added detail
)
(04-29-2020, 01:15 PM)IceWizard Wrote: What do "Tanning Booths" use in order to get you tanned ....
UV's?
Ice
It is a different frequency of UV for tanning rather than sterilizing. In a tanning booth you have to wear dark goggles because of the potential damage to your eyes (I think that's a legal requirement, although obviously it may be different in the USA).
UV is a good way of sterilizing limited spaces* and things, but not so much people. It has the huge advantage that you don't leave behind a chemical residue like with bleach. You can use it on things that wouldn't respond well to being sprayed with liquid disinfectant. I suppose if a store had a sufficiently sophisticated AC system then it could potentially vent the ozone, and keep the UV light contained so no eye damage, but let it sterilize the air as it passes through. Of course that wouldn't sterilize the surfaces, but arguably the surface contact problem is easier to solve (wash your hands) than the breathing issue.
Anyway it is a bit like what Bubba Gamps mentioned about treating water. In the swimming pool units the UV is contained so humans aren't exposed, but can swim in the sterilized water. I guess many are outdoors so could vent the ozone that way.
Please don't think I'm against UV. In fact I ordered a UV unit for the "quarantine" zone inside my house. But it is sterilization for groceries and packages, but not for humans (that's what the shower is for!). I have been spraying things down with alcohol, but the fumes were a serious fire risk. UV won't have that problem!
* Limited due to the inverse square rule.