I bought one of these for Mom and it worked when her air conditioner was not cooling much.
https://www.walmart.com/ip/As-Seen-on-TV-Artic-Air-Cooler/170497626
When I bought it it was $39.95 and tax at local Walmart.
Easy to use, BUT I noticed the power cord is like phone charger cords. It has a USB connection into a plug box.
Now if you get a solar charger, or a extra battery with USB port, you could run this when other power options were not available.
https://www.walmart.com/ip/As-Seen-on-TV-Artic-Air-Cooler/170497626
When I bought it it was $39.95 and tax at local Walmart.
Easy to use, BUT I noticed the power cord is like phone charger cords. It has a USB connection into a plug box.
Now if you get a solar charger, or a extra battery with USB port, you could run this when other power options were not available.