Humidity refers to the degree of dryness and wetness of water vapor in the air. Relative humidity refers to the percentage of the water vapor pressure in the air compared to the saturated water vapor pressure at the same temperature. When the relative humidity in a place is too high or too low, it can lead to environmental health problems, and even affect people's physical and mental health.

Why is indoor air quality important?

Most people, either living or working, may spend 90% of their time indoors. "Without openable windows or ventilation, they are constantly breathing the air that other people or themselves breathe.".

Low air quality has a considerable ripple effect on human health and work efficiency. For example, pollutants in the indoor environment (such as high concentrations of carbon dioxide) can lead to chronic diseases, and low humidity can lead to dry eyes and sore throat. In general, low air quality can lead to headaches, physical fatigue, breathing problems, and inattention. From a work perspective, the absenteeism rate of the workforce will be higher, and when they work in this environment, the level of productivity will also decline. This study has shown time and again the links between air quality, work performance, and healthy living.

Indoor humidity standards

To work efficiently and live a healthy life, everyone needs to have a healthy and comfortable environment. In daily life or work, low air quality is largely related to the humidity of the air around them.

According to physiologists, the comfort of the human body is the result of a comprehensive understanding of temperature and humidity. While paying attention to temperature, attention should also be paid to adjusting indoor humidity. In summer, when indoor humidity is too high, it can inhibit human body heat dissipation, making people feel sultry and irritable; In winter, when indoor humidity is too high, it can accelerate heat conduction, making people feel cold and depressed. When the indoor humidity is too low, a large amount of water in the mucous membrane of the upper respiratory tract is lost, causing people to feel dry and prone to catching colds. Experts believe that the upper limit of relative humidity should not exceed 80% RH and the lower limit should not be lower than 30% RH. According to experimental measurements, the most pleasant indoor temperature and humidity are: 18 ℃ to 25 ℃ in winter, and 30% RH to 80% RH in humidity; In summer, the temperature ranges from 23 ℃ to 28 ℃, and the humidity ranges from 30% RH to 60% RH. Most people in this range feel comfortable.  

Methods for improving air quality

Low air quality is a relatively serious problem in China, and improving air quality is very important. How to ensure high-quality indoor air, one of the breakthrough points is to control air humidity and purify the air. Methods for improving indoor air quality:

(1) Open the window and let the air circulate. This also reduces humidity and odor in the interior, especially in the kitchen.

(2) Regularly replace the air filter to ensure effective purification of the air circulation.

(3) Add indoor plants. Plants are biological air purifiers that have been proven to improve indoor air quality

(4) Install a fresh air dehumidification system. Humidity control is the biggest factor affecting indoor air quality. Installing a fresh air dehumidification system effectively ensures that the indoor air environment is maintained at a comfortable level.