Evaporative cooler. The high temperature in London is 70 degrees. Fahrenheit. Total hype.
I got sick of the heat. That’s why I live at 5,000 ft.
Evaporative coolers don’t work worth a damn in high humidity areas. They are great in low humidity areas. When you’re reading 80% humidity all the cooler does is blow hot wet air. AC is the way to go. That’s easy to say but expensive to operate. It is what it is.
My MIL had a swamp cooler in Fresno back in the late ‘70s. Worked great but Fresno’s humidity was usually in the teens. Any humidity above about 50% the swamp cooler just put mold on the walls. Lol.
Oh yeah, and they are also known to be a potential source of Legioneer’s(SP) disease.