How to clean a window air conditioner (and the dangerous mold mistake to avoid)

When you buy through our links, Business Insider may earn an affiliate commission. Learn moreUse a handheld vacuum to clean debris from the interior of a window AC.James Brains/Business InsiderWith summer temperatures rising and energy costs at all-time highs, a dirty window air conditioner isn't just gross, it's actively costing you money. Dust and debris force the compressor to work harder, while trapped moisture creates the perfect breeding ground for dangerous hidden mold. Whether you'r