Keep the air conditioner free of moisture buildup to prevent mold and mildew from growing. Regularly clean the filter, drain pan, drain line, and coils to remove any mold or mildew. Fully clean, dry, ...

Here's when HVAC pros suggest turning off your window AC unit so you can save money while you're away from home without wasting energy cooling the space upon your return.

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Your window air conditioner isn’t exactly the prettiest decor, but it is one of the best tools for staying cool in warm weather, especially if (like me) you don’t ...

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 ...