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This woman exposed seemingly every part of herself to the machine's three spritzers.
This woman exposed seemingly every part of herself to the machine’s three spritzers. See the jets of mist?

We were passing through a shopping mall in Tsuen Wan recently and noticed a man standing in front of a rectangular machine and bathing himself in jets of white mist, as the woman is doing in the animated GIF (produced from a short video taken from an up escalator) shown above.

A view of the middle of the Aqua PRO+TECH Intelligent Disinfection Station.
A view of the middle of the Aqua PRO+TECH Intelligent Disinfection Station showing the proximity sensor and two of the mist nozzles as well as the bottom of the screen displaying user instructions on its use.

The machine, as it says on its label, is an Aqua PRO+TECH Intelligent Disinfection Station. Wondering what’s in the liquid being pumped out? Here’s what the manufacturer’s FAQ says:

WHY AQUA PRO+TECH SANITIZING SPRAY HAS SUCH STRONG SANITIZING EFFECT WHILST WITH MAIN INGREDIENT OF PURE WATER?

AQUA PRO+TECH multi-purpose spray is made mainly from 99.98% purified water and 0.02% potassium carbonate (Food-grade) with advanced technology. The right level of alkalinity has excellent cleaning, sanitizing and deodorizing power, yet is not harmful to skin and our living environment. The spray can effectively kill germs by breaking up their cell membrane and deactivate its protease, RNA and DNA.

A solution (mainly) of 0.02% potassium carbonate kills germs? The sticker on the machine (see photo above) says it Kills Viruses & Bacteria and the product page on the manufacturer’s website says Effective in killing viruses and bacteria (including new coronavirus), but I wasn’t able to find anything in a few minutes’ worth of online searches that would support the company’s claim.

Side-by-side images: a full shot of the device and a lateral view with all three of its squirters running and the mist jets visible against the industrial carpeting on the mall's floor.
Side-by-side images: a full shot of the device and a lateral view with all three of its squirters running and the mist jets visible against the industrial carpeting on the mall’s floor.

If anything, I’d be concerned that the gadget’s liquid reservoir might come to harbor pathogens (e.g. Legionella) and that the sprayers might be inoculating credulous and unwary passersby w/ said germs or dispersing them into the air in the sort of indoor spaces that would install one of these things.

Finally, another animated GIF of the nozzles in action:

The mist nozzles are proximity-triggered.
The mist nozzles are proximity-triggered.