Who doesn't love high humidity in summer, right? I think 'everyone' is the safe answer. If you depend on a dehumidifier to make summer heat a little more endurable, you want to make sure to keep the dehumidifier clean. Like any other HVAC system, a dehumidifier with a dirty filter will suffer from decreased energy efficiency and an increased chance of mechanical breakdown. Don't let that happen! Keep replacement filters on hand at all times. If you don't know where to find them, well, we got you covered.