Aprilaire® AA4793

Aprilaire®, 4793, Maintenance Kit, Humidifier, For Use With: Models 550, 550A and 558, Metal/Paper/Plastic, Domestic

• AprilAire Humidifiers can help you maintain optimal humidity in your home of 35% to 45% which has been shown to reduce the incidence of respiratory infections and symptoms related to allergies and asthma by minimizing the formation of bacteria and viruses, fungi, and dust mites
• In addition, you will feel more comfortable while also preserving items in your home susceptible to damage from changing humidity or dry conditions