Indoor Humidity and House Dust Mites: Why Keeping It Around 50% Is Recommended
Humidity is one of the most important environmental conditions for house dust mite breeding. Keeping humidity under control is often less effort than frequent mite removal.
The Relationship Between Humidity and Breeding
House dust mites survive by absorbing moisture from the air. When the relative humidity in the environment is high, they breed noticeably faster; when humidity is lower, their survival and breeding are both held back. It is generally considered that keeping indoor relative humidity at around 50% is a practical approach. It suppresses mites without making the airways and skin feel dry and uncomfortable.
How to Check the Humidity at Home
A thermometer-hygrometer costing a few tens of yuan, placed in the bedroom, is enough to check. Pay attention to the readings at night and on rainy days. Common sources of high humidity include: moisture spilling out from the bathroom and kitchen, drying clothes indoors, too many plants, and keeping windows closed without ventilation for long periods. Finding the main sources is more effective than relying only on a dehumidifier.
The Link to Asthma Management
For people with allergic asthma, bedroom humidity, house dust mites and mould often act together. For those whose symptoms get worse at night and in the early hours, it is worth reviewing bedroom humidity, bedding cleaning and ventilation together. Regular medication and environmental control are two parallel lines. If symptoms are not well controlled, ask a doctor to assess the plan. Do not increase or reduce medication on your own.
This article is for general information only and is not medical advice. Please follow your doctor's instructions for your specific situation.
This article is for general information only and is not medical advice. If your symptoms affect daily life, please see a doctor.