Bought one of these window fans yesterday when a friend told me they were in stock:
https://www.homedepot.ca/product/ham...fan/1001094738
I've had a number of friends telling me that these work really well, and much to my surprise, it worked even better than I had imagined. When I set it up as an exhaust fan in the kitchen right after we made dinner, our kitchen cooled down much quicker than I had anticipated. Later in the evening when I set it up as an intake fan in my kid's bedroom, it brought it right down from 27ºC+ to just a hair under 25ºC pretty quickly too.
It's insane how they are almost all sold out now.