The ideal humidity level in your house generally falls within the range of 30% to 60% relative humidity (RH), with a more specific comfort and health target typically between 40% and 50%. This range supports comfort, prevents growth of mold, dust mites, and bacteria, and protects your home’s materials such as furniture and flooring. Here are some specifics by room type:
- Living Room & Bedroom: Keep humidity between 40% and 50% RH for comfort, good air quality, and to reduce allergens.
- Kitchen and Bathroom: Slightly lower or adjustable humidity between 30% and 50% RH helps control moisture from cooking and bathing activities.
- General home indoor air: Aim for 40-60% RH in warmer seasons and 30-50% RH in winter to discourage mold and maintain comfort.
Humidity above 60% can encourage mold and dust mites, while humidity below 30% can cause dry skin, irritation, and increase static electricity. Using a hygrometer to monitor indoor humidity and humidifiers or dehumidifiers to maintain optimal levels is recommended. In summary, maintaining indoor humidity between 30% and 60%, with a sweet spot commonly around 40%-50%, is best for health, comfort, and home preservation. Adjustments may be needed by season and specific room use.
