Keep your AprilAire Whole Home Humidifier running efficiently and effectively with the AprilAire 4792 Maintenance Kit. Designed for hassle-free annual maintenance, this comprehensive kit includes everything you need to restore performance and maximize humidity control throughout your home.

Since pioneering the first evaporative humidifier for forced-air furnaces in 1954, AprilAire has remained a trusted leader in whole-home humidification. This kit supports that legacy, helping maintain optimal indoor air quality by ensuring your humidifier operates just as it should.

AprilAire’s evaporative humidifiers work by channeling water into a distribution tray that evenly disperses moisture across the Water Panel evaporator. As warm, dry air passes through, water naturally evaporates into the air, increasing humidity for a healthier and more comfortable home environment.