Quick answer: Very dry air can feel irritating, while excessive moisture can promote mold and dust-mite problems. The goal is comfortable, controlled indoor humidity rather than maximum humidity.
Contents
When air is very dry
Dry conditions can contribute to dry skin, nose and throat discomfort. A humidifier may improve comfort for some people, but it must be cleaned properly to avoid dispersing contaminants.
When a home is too damp
Persistent dampness can support mold growth and dust mites. Address leaks, condensation and water damage promptly rather than relying only on air fresheners or surface treatments.
Use a humidity meter
An inexpensive hygrometer can help identify whether a room is unusually dry or damp. Adjust humidifiers, dehumidifiers and ventilation based on real measurements and local conditions.
Do not self-treat unexplained breathing problems
If wheeze, chest tightness or shortness of breath persists, seek medical evaluation. Changing humidity may improve comfort but does not diagnose the cause.
References & further reading
- EPA — Indoor Air Quality — indoor-air-quality guidance
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