What is the general air humidity?

Question 1: What is the optimal value of air humidity? As the name suggests, "air humidity" refers to the amount of water vapor contained in the air. The greater the humidity, the humid the air, and the closer the water vapor is to saturation. Usually we use relative humidity to express the humidity of the air. Under certain temperature conditions, the smaller the relative humidity of the air, the faster human sweat evaporates, and the cooler people feel. In Beijing, the general humidity during the day is about 20% in winter and spring, and at night it is generally about 70%. Because the humidity is too low in winter and spring, people often feel uncomfortable, and sometimes have chapped lips, bleeding nostrils, and itchy throats. . However, in midsummer, when the air humidity reaches more than 80%, due to the slow evaporation of sweat, people will feel the heat is unbearable. Sometimes they will suffer from heat stroke or cause kidney disease, tuberculosis, arthritis and other diseases.

The more comfortable weather conditions in the room are: when the room temperature reaches 25°C, the relative humidity should be controlled at 40-50%; when the room temperature reaches 18°C, the relative humidity should be controlled at 30-40%. Households with humidifiers should pay attention to regularly adjusting indoor humidity to fully serve your health.

Question 2: What is the normal humidity level in the room? Hello, host! The relative humidity of the air in the room is 50%, which is the most comfortable humidity. Hope this helps! O(∩_∩)O

Please accept it, thank you!

Question 3: What is the normal humidity in the air that is most suitable for people? Generally speaking, the human body feels most comfortable indoors The appropriate temperature is 15-18°C. If the indoor air is not circulating or the relative humidity is less than 35%, and the indoor temperature exceeds 25°C, the human body will begin to absorb heat from the outside, and you will feel hot. If the temperature exceeds 35°C, the human body's sweat glands will start to activate, and the body temperature will be accumulated through slight sweating, the heartbeat will accelerate, and the blood circulation will accelerate. You will feel dizzy, have general discomfort and fatigue, and feel drowsy. And the heat is unbearable. On the contrary, when the temperature drops below 4℃, you will feel cold. When the room temperature is between 8 and 18 degrees Celsius, the human body will dissipate heat to the outside world. Coupled with the indoor breeze blowing and circulating, and the indoor relative humidity between 40% and 60%, you will feel comfortable and healthy. The effect of humidity on the human body is not obvious within the indoor comfortable temperature range. But at 28°C and a relative humidity of 90%, you will feel like the temperature is 34°C. This is because when the humidity is high, the water vapor content in the air is high and the amount of evaporation is small. The large amount of sweat excreted by the human body is difficult to evaporate, and the heat in the body cannot be dissipated smoothly. Therefore, you will feel stuffy. In terms of relative humidity alone, the most suitable relative humidity of air for the human body is 40%-50%, because within this humidity range, the life span of bacteria in the air is the shortest, the human skin will feel comfortable, and breathing will be even and normal. According to statistics from meteorological experts, when the relative humidity reaches 30%, the temperature for heatstroke is 38°C. When the relative humidity reaches 80% and the temperature is 31°C, people with weak constitutions sometimes suffer from heatstroke. If they encounter low temperature and high humidity in winter, When the weather is cold, people will feel damp and cold.

Conclusion: A healthy humidity environment is 45% to 65%. Under such humidity conditions, the human body feels the most comfortable and various germs are less likely to spread. Humidity higher than 65% will cause discomfort to the human respiratory system and mucous membranes, and reduce immunity.

Question 4: What is the appropriate degree of indoor air humidity? According to research by physiologists, when the indoor temperature is too high, it will affect people's body temperature regulation function. In winter, if the indoor temperature is often kept above 23 degrees Celsius, people will feel exhausted and dizzy. At the same time, due to the huge difference in temperature between indoors and outdoors, the human body has difficulty adapting and is prone to colds. If the indoor temperature is too low, the metabolic function of the human body will decrease, the pulse and breathing will slow down, and the resistance of the respiratory mucosa will weaken, which can easily induce respiratory diseases.

While paying attention to indoor temperature regulation, you should also pay attention to indoor humidity. In summer, when the indoor humidity is too high, it will inhibit the body's heat dissipation, making people feel very stuffy and irritable. In winter, when indoor humidity is high, people will feel cold, depressed, and prone to colds. The most pleasant indoor temperature and humidity are: winter temperature is 18 degrees Celsius to 25 degrees Celsius, humidity is 30% to 80%; summer temperature is 23 degrees Celsius to 28 degrees Celsius, humidity is 30% to 60%. More than 95% of people feel comfortable within this range. In an air-conditioned room, people feel most comfortable when the room temperature is 19 degrees Celsius to 24 degrees Celsius and the humidity is 40% to 50%.

Question 5: What is the normal indoor humidity? Air humidity refers to the degree of moisture in the air. Generally expressed as relative humidity. Relative humidity refers to the percentage value of the actual water vapor density contained in the air and the saturated water vapor density at the same temperature. The optimal relative humidity for the human body to feel comfortable indoors is 49% to 51%. If the relative humidity is too low or too high, the human body will feel uncomfortable and even be harmful to the human body. In winter, in northern my country, stoves or heaters are used for heating. The heated indoor air will cause the indoor relative humidity to decrease. Especially in some centrally heated residences in big cities such as Beijing, the relative humidity is often as low as less than 10% due to high room temperature. Living in this environment, people are prone to respiratory diseases and symptoms such as dry mouth, cleft lip, and nosebleeds.

This is because the inside of the nose, respiratory tract, lungs and reticular alveoli are covered by mucosa that supports hair-like cilia. When the relative humidity of the air is lower than 40%, the movement of the cilia becomes very slow, so dust easily sticks On the mucous membrane, coughing is not conducive to the elimination of germs, leading to the occurrence of respiratory diseases. In addition, due to low relative humidity, a large amount of water is lost from the human epidermis, resulting in a decrease in skin elasticity, accelerated skin aging, rough epidermis, and cell shedding, which reduces the skin's ability to resist germs to a certain extent. Women in southern my country have delicate and smooth skin. One of the main reasons is the high relative humidity in the south. If the relative humidity is too low, it will also cause the wood to lose moisture, causing furniture or wooden floors to deform, crack and be damaged; musical instruments with high humidity requirements such as pianos and violins cannot be used normally; cultural relics, archives and books will become brittle and deformed. Relative humidity that is too high can easily cause indoor furniture, clothing, carpets and other items to become moldy, ironware to rust, and electronic devices to short-circuit; carpets and wallpapers can produce static electricity, which is harmful to the human body and can even cause fires. After measurement, experts believe that the optimal indoor humidity is as follows: Living room environment: 40% ~ 70% RH The most favorable environment for disease prevention and treatment: 40% ~ 55% RH Book and cultural relic storage environment; 40% ~ 60% RH Computer, Communication equipment storage environment: 45% ~ 60% RH Storage of cotton and wool textiles: 40% ~ 60% RH Storage of dairy products: 50% ~ 60% RH Storage of candies and snacks: 40% ~ 60% RH Storage of vegetables and fruits: 60% ~ 70% RH Grain storage: 50% to 70% RH To achieve the above standard humidity, relying on traditional methods of sprinkling water on the indoor floor and humidifying fish farming and bonsai is obviously not enough. It is necessary to choose a suitable humidifier for artificial humidification. What needs to be pointed out in particular is that when purchasing a humidifier, you would rather spend a little more money to purchase a humidifier with automatic constant humidity function. Because of this function, the user can select a specific optimal humidity value, and then the humidity controller automatically controls the humidifier. When the indoor environment reaches a specific humidity value, the humidifier can automatically shut down; when it falls below a set value, the humidifier will automatically turn on. This can not only achieve humidification, but also avoid the phenomenon of overhumidification of the indoor environment caused by the humidifier working without an automatic controller

Question 6: What is the appropriate humidity in the bedroom? Scientific research shows that people live in relative humidity An environment with a humidity index of 45-65% RH and a humidity index of 50-60 is the most comfortable and is less likely to cause respiratory diseases. The indoor humidity during the winter heating period in northern my country is usually 15% RH. In this dry environment, people generally feel various discomforts. When the air humidity is lower than 40% RH, the movement of cilia on the respiratory mucosa of the human nose and lungs slows down, and dust and bacteria easily adhere to the mucous membranes, causing thirst, dry cough, hoarseness, and larynx in the throat. Symptoms such as pain can also accelerate the reproduction rate of influenza viruses and Gram-positive bacteria that can cause infection, and can easily spread with dust in the air and cause other diseases. Therefore, when dry and cold air invades in autumn and winter, it is easy to induce pharyngitis, tracheitis, pneumonia and other diseases. In addition, allergic diseases such as allergic dermatitis, bronchial asthma, skin itching and discomfort are also related to dry air. When the air humidity is greater than 65% RH, the amount of pineal hormone in the human body is also large, causing the concentration of thyroxine and epinephrine in the body to be relatively reduced, and people will feel listless and sluggish. Working and living in places with high humidity for a long time are also prone to rheumatism, rheumatoid arthritis and other hygroarthritis, which ultimately leads to a decline in the body's immunity.

Precisely because air humidity affects people's health, the air humidity in the room should be adjusted with seasonal changes to keep the room humidity within a suitable range. Generally speaking, the humidity is high in spring and summer and low in autumn and winter, so you should open fewer windows on rainy days in summer. In winter, when there is heating, you should use a humidifier or humidify yourself, or mop the floor with a wet mop to increase indoor humidity.

Question 7: What is the best humidity in a general home? Air humidity refers to the degree of moisture in the air, which can be expressed by relative humidity (RH). Relative humidity refers to the percentage value of the actual water vapor density contained in the air and the saturated water vapor density at the same temperature. The optimal relative humidity for the human body to feel comfortable indoors is 49% to 5l%. If the relative humidity is too low or too high, it will be uncomfortable or even harmful to the human body. In winter, in northern my country, stoves or heaters are used for heating. The heated indoor air will cause the indoor relative humidity to decrease. Especially in some centrally heated residences in big cities such as Beijing, due to the high room temperature, the relative humidity is often as low as... Below 10%. Living in this kind of environment, people are prone to respiratory diseases and symptoms such as dry mouth, cleft lip, and nosebleeds. This is because the inside of the nose, respiratory tract, lungs and reticular alveoli are covered by mucosa that supports hair-like cilia. When the relative humidity of the air is lower than 40%, the movement of the cilia becomes very slow, so dust easily sticks to the On the mucosa, coughing is not conducive to the elimination of germs, leading to the occurrence of respiratory diseases. In addition, due to the low relative humidity, a large amount of human epidermal water is lost, resulting in a decrease in human skin elasticity. In addition, due to a low relative humidity, a large amount of human epidermal water is lost, resulting in a decrease in human skin elasticity, accelerated skin aging, rough epidermis, cells Shedding and other phenomena reduce the skin's ability to resist germs to a certain extent.

Women in southern my country have delicate and smooth skin. One of the main reasons is the high relative humidity in the south. If the relative humidity is too low, it will also cause the wood to lose moisture, causing furniture or wooden floors to deform, crack and be damaged; musical instruments with high humidity requirements such as pianos and violins cannot be used normally; cultural relics, archives and books will become brittle and deformed. If the relative humidity is too high, indoor furniture, clothing, carpets and other fabrics can easily become moldy, ironware can rust, electronic devices can short-circuit, and static electricity can occur on carpets and wallpapers, which can be harmful to the human body and even cause fires. After measurement, experts believe that the optimal indoor humidity is as follows: Living environment: 40%-70%RH (relative humidity) The most favorable environment for disease prevention and treatment: 40%~55%RH Book and cultural relics storage environment: 40%-60 %RH storage of cotton fabrics: 40%-60%RH storage of candies and snacks: 50%~60%RH storage of vegetables and fruits: 50%~70%RH

Question 8: The most suitable indoor air humidity Everyone's body sensation is different, so generally speaking, there is a range of comfortable indoor temperature and humidity, usually between 23-2°C at room temperature, and 40%-65% humidity, which is relatively comfortable...

Question 9: What is the indoor humidity standard? 22 to 24 degrees in summer, 20 to 22 degrees in winter, and 23 to 25 degrees in other areas. Humidity is 50% in summer and 40% in winter. The temperature is 22 to 24 degrees in summer, 20 to 22 degrees in winter, and 23 to 25 degrees in other areas. Humidity is 50% in summer and 40% in winter.

Question 10: The general indoor humidity is related to the season. In spring and winter, the humidity is as low as 30 to 40%, while in summer and autumn, the humidity is high at about 50 to 80%. Generally, people feel more comfortable when the relative humidity is 40 to 70%. If the relative humidity is less than this value, people will feel dry. If the relative humidity is greater than this value, people will feel bored.