I mean modern ICE cars can have this same problem.

Who said google and apple aren’t anti-consumer?

Pretty sure when I saw the original post talking about the design, they said the students were only working with electric leaf blowers. So this was designed to make electric leaf blowers even quieter.

I’ve had a hobby project on the back burner for quite a while using some esp8266s and thermal cameras for presence detection. Got one working pretty well in a small room.