You've heard the phrase "It's not the heat, it's the humidity" when it comes to uncomfortably hot days in the summer. When it's humid, the air can feel much hotter than it actually is. Using a dehumidifier in your home can take out excess moisture in the air and make it feel cooler inside. Dehumidifiers are energy efficient and can help reduce energy costs. Bonus tip: Use the collected water from your dehumidifier to water plants.