Yes, they belong to the category asynchronous motors that, together with functional plugs (radio controlled and WiFi switches, power meters, programmers etc..., small appliances with electronic timers are fed by a capacitive voltage reducer, that don't like MSW.Pedestal fans don't like msw inverters. They make a strange buzzing sound.
Do you have more pictures of the inside of that box? I'm working on something similar and would love some ideas!
That is just a quick shot just to fit the purpose, soldering the fuses., still need to include a fan to use the full range of the boost converters.