The biggest drawbacks of window air conditioners are their noise level, rather unsafe installation, and the fact that you can't open that window for fresh air again until the unit is removed.

Lets you open and close your window! Much smaller gap compared to traditional window ACs, meaning better sound-proofing. Includes lots of padding to cover up any gaps. The AC itself is very quiet.

When you buy through our links, Business Insider may earn an affiliate commission. Learn more Midwest summers are a hot, sticky affair, and my old house was never outfitted with an HVAC system. So, I ...