What happens when the indoor humidity is below 20?

When the indoor humidity is lower than 20, dust, bacteria, etc. It is easy to attach to mucosa, irritate throat, cause cough, and easily induce respiratory diseases such as bronchitis and asthma.

But too much humidity is bad for your health, and people may feel sick, lose appetite, be agitated, tired and dizzy. A study by the University of Otago in New Zealand found that living in a damp and moldy room also increases the risk of allergic diseases such as asthma and eczema. In high humidity environment, mold and so on are also easier to breed.

Extended data

According to China's indoor air standards, indoor humidity should be 40%~80% in summer and 30%~60% in winter. The suitable indoor humidity for the elderly and children is 45%~50%, and for patients with respiratory diseases such as asthma is 40%~50%.

The outdoor humidity is high in summer rainy days in the south, so the window opening time should be reduced; When the weather is fine, open more windows to ventilate and disperse dampness; You can put some moisture absorption boxes or desiccant in the wardrobe and cupboard. The air in the north is dry in winter, so you can use a humidifier, sprinkle some water indoors or mop the floor twice a day. It should be noted that if a humidifier is used, it is best to use pure water, and the machine should be cleaned and disinfected regularly.

People's Network-Meeting at six o'clock is a good bedroom, and 20℃ is the best sleeping temperature.