this post was submitted on 06 Dec 2024
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[Evidence Inconclusive] Germ Blaster (mander.xyz)
submitted 5 days ago* (last edited 5 days ago) by [email protected] to c/[email protected]
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[–] daddy32 47 points 5 days ago* (last edited 5 days ago) (2 children)

This is not hot air though, so the cited source does not apply.

Edit: but it does link to more relevant study towards the end, comparing different means of hand drying.

[–] [email protected] 34 points 5 days ago (1 children)

You're right and I linked a fairly old study. I've edited my comment to add a more recent source.

[–] daddy32 21 points 5 days ago

Kudos.

[–] kautau 20 points 5 days ago (1 children)

Findings: Air bacterial counts in close proximity to hand drying were 4.5-fold higher for the jet air dryer (70.7 cfu) compared with the warm air dryer (15.7 cfu) (P=0.001), and 27-fold higher compared with use of paper towels (2.6 cfu) (P<0.001).* Airborne counts were also significantly different during use of towel drying versus warm air dryer (P=0.001). A similar pattern was seen for bacterial counts at 1m away. Visualization experiments demonstrated that the jet air dryer caused the most droplet dispersal.

[–] SmoothOperator 4 points 5 days ago

Isn't the point to get bacteria off your hands? Isn't it better to have them in the air than on your hands?

It's a lot more likely I'll eat something I touched than something that's been sitting in bathroom air.