Many homes don’t have accessible windows for portable AC venting. But proper ventilation is essential. Without it, the portable AC will not function properly and may even heat up the space. If you’re ...

Window air conditioners and portable a/c units have their respective advantages and disadvantages. For example, window units are generally more efficient because they're sealed tightly in a window ...

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 ...