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Is the humidity inside your home too low? Dry air can be a real problem when it comes to your family’s comfort and health.

Whole-house humdifier attaches to the home’s furnace or air handler. Photo: Aprilaire

Low levels of water vapor in the air can dry out and irritate skin. The respiratory system, which relies on moisture to fight off viruses and bacteria, dries out, making you more susceptible to colds, coughs, and asthma.

Ideal levels of humidity in rooms should range from 30 percent to 50 percent in winter and 40 percent to 50 percent in summer. In dry-air climates, maintaining humidity at these levels demands mechanical assistance. That’s where humidifiers come in. These appliances are designed to add water vapor to the air on an as-needed basis.

This section of HomeTips explains how humidifiers work and will help you make informed buying decisions as well as guide you through step-by-step care and repair of your humidifier.


• Home Humidifiers Buying Guide
• How Humidifiers Work
How to Repair a Humidifier

About Don Vandervort
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Don Vandervort developed his expertise more than 30 years ago as Building Editor for both Sunset Books and Home Magazine. He has written more than 30 home improvement books and countless magazine articles. He appeared regularly on HGTV’s “The Fix,” and served as MSN’s home expert. Don founded HomeTips in 1996.

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