[jnwatson]

There are a dozen other humidifiers they can earn affiliate money through.

I have a low-end "Victsing" model and it works just fine (as evidenced by the hygrometer next to it), and isn't hard to clean. It isn't a complicated device to make.

(I have no affiliation with the manufacturer).

[stuckindider]

You don't know what affiliate deals they have with the manufacturer. Amazon pays a flat percentage.