And for metal surfaces which are not self-sanitizing by nature, like steel, there are coatings which can be applied to achieve the same effect. This is often used in public transport.

And easily thwarted by washing your hands.

This is probably easier to install or retrofit than an automatic door, seeing as it self powers

Motion sensors and push plates aren't perfect, but they remove the contact vector entirely instead of trying to mitigate it after the fact

How often do they get wiped, and how dirty do they get in between? The idea here seems to be keeping them sanitary continuously.

On every usage??

What about bathroom doors that are touched constantly?

Where I think this kind of idea tries to make its case is in places where cleaning is infrequent, inconsistent, or happens long after peak use

I suppose a second every few hours over dozens of doors adds up. And this has the benefit of being continual, so you don't get build up between cleans.

I'm sceptical myself that the tiny generator they have could produce enough energy, and that the coating they have won't be more of a hassle, but the idea is reasonable

I guess my "I still don't care about cookies" add-on prevents the pop-ups, but one of the other add-ons prevents the video from playing. Or the site is just broken.

Not sure how quickly the one from the post takes, but according to the Wikipedia article, brass disinfects "within two hours or less". I could see plenty of transmission within one to two hours. Perhaps it is a difference of speed?

Came here to find/post this comment :D

What makes you think so? One of the section titles says "Your inspiration" (rather than "Our inspiration"), which sounds like ChatGPT was writing to them. That wasn't around in 2019.