It’s called toilet plume.
A toilet plume is the invisible to the naked eye, cloud-like dispersal of raw, infectious sewage particles as a result of flushing a toilet. Flush particles rapidly rise out of the bowl and several feet into the air after flushing. Aerosolized droplets can remain suspended in the air for tens of minutes between users, posing an inhalation risk. These invisible particles go on to coat and spread onto surfaces like floors and counters or objects like hand towels, bathmats, or even toothbrushes.
That same study also includes this figure,
But the study doesn’t measure other surfaces or things like “a nearby sink” or “a hand towel”. Perhaps for airborne particles they roam more freely, but what about surface particles? I feel like there is more to study.
This is similar to why we all wore masks during the pandemic. No, they’re not always effective, but yes, they reduce transmission rates.
Yes, but there is incredibly strong evidence that mask wearing does reduce transmission rates. I haven’t looked (so definitely correct me if I’m wrong), but I suspect that lid closing likely does not have strong evidence for decreased transmission.
One factor that I think likely weighs heavily into this is that public toilets, where you could be exposed to particles from a stranger dont have lids usually, and they have a much more violent flush, while home toilets are mostly just used by your own household.
We’re not necessarily talking about transmission in this case, just the concept of poo particles spreading widely throughout your bathroom vs less widely
Too bad N95 masks and condoms can’t be made idiot-proof.
Idiot-proof is a misnomer. Better term is idiot-resistant.
Related note. I’m very sad that there isn’t a joke ANSI or ISO document laying out specifications for idiot-resistance standards.