The problem of dry weather

Generally speaking, autumn and winter are drier than spring and summer. Many provinces in the south of China have rainy seasons in spring and summer, while the Yellow River Basin in the north is generally rainy in summer. However, this reference has many factors. Besides rain, there are also influences of monsoon, topography and local urban environment.

Considering drying or not, an important value is humidity: relative humidity can be expressed as the ratio (percentage) of water vapor pressure to saturated vapor pressure of sample air at the same temperature.

After determination, experts believe that the best indoor humidity is as follows:

Indoor environment: relative humidity 40%-70%

The most favorable environment for disease prevention and treatment: 40% ~ 55% RH

Storage environment of books and cultural relics: relative humidity 40%-60%

Cotton wool storage: relative humidity 40%-60%

Storage of sweets and snacks: 50% ~ 60% relative humidity.

Storage of vegetables and fruits: relative humidity 50% ~ 70%

Grain storage: 50% ~ 70% relative humidity

Lz can prepare a hygrometer to measure frequently and adjust indoor humidity in time to prevent health problems caused by dryness.