The ideal humidity level for your room should generally be maintained between 30% and 50% relative humidity. This range is recommended to optimize comfort, health, and prevent issues like mold growth or excessive dryness
. Key points about room humidity:
- The Environmental Protection Agency and other studies suggest keeping indoor relative humidity between 30% and 50%, and never exceeding 60%.
- Many experts and organizations, including ASHRAE and the American Society of Heating Refrigeration, Air-Conditioning Engineers, recommend a range of 40% to 60% for overall home comfort and health
- To discourage mold growth, it is advised to keep humidity below 50%
- In winter, a humidity range of 30% to 60% helps prevent dry skin, static electricity, and respiratory irritation
- In summer, maintaining humidity between 30% and 45% is preferable to avoid a clammy feeling and reduce health risks
- Humidity levels above 60% can promote dust mites and mold, which are triggers for asthma and allergies
Summary:
- Aim for 30% to 50% relative humidity for general comfort and health.
- Adjust slightly depending on season: lower in summer (30-45%), and a bit wider range in winter (30-60%).
- Avoid letting humidity exceed 60% to prevent mold and allergens.
Using humidifiers, dehumidifiers, and proper ventilation can help maintain these optimal levels in your room
