Keystone window air conditioners are up to 25% off on Amazon, with select 8,000- to 14,000-BTU models at their lowest prices ...

It's hot and it's just going to get hotter. Stay cool with these AC deals you can get delivered fast and free from Walmart.

This a hot, hot, hot deal at Walmart that'll actually keep you cool for $141 off. This ultra powerful 12,000 BTU air conditioner is on sale with free next-day delivery ...

You can find a highly-efficient window AC unit for a good price during Walmart's deals event.

NBC Selected independently determines what we cover and recommend. When you click on or buy through our links, we earn a commission. Learn more. Harry Rabinowitz Tech Reporter It’s getting hot outside ...

My home office is too hot, or it's too cold. It's in a weird cranny that my heat pump refuses to reach. The only solution in my awkward space was a good portable air conditioner, and my life went from ...

We got our hands on multiple units and looked for models that are quiet, energy-efficient, and easy to install.

As is the case for many people, my home cannot be retrofitted with central air. My 100-plus-year-old Brooklyn apartment, which features prominently in my seven years of air quality reporting for WIRED ...