What is the general air humidity?

Question 1: What is the best air humidity? As the name implies, "air humidity" refers to the size of water vapor contained in the air. The greater the humidity, the wetter the air and the closer the water vapor is to saturation. Usually we use relative humidity to express air humidity. At a certain temperature, the smaller the relative humidity of the air, the faster the sweat evaporates and the cooler people feel. In winter and spring in Beijing, the humidity is about 20% during the day and about 70% at night. Because the humidity is too low in winter and spring, people often feel uncomfortable, sometimes their lips are chapped, their nostrils are bleeding, and their throats are dry and itchy. However, in midsummer, when the air humidity reaches more than 80%, people will feel unbearable heat because of the slow evaporation of sweat, and sometimes they will suffer from heatstroke or cause diseases such as kidney disease, tuberculosis and arthritis.

Indoor comfortable meteorological conditions are: when the room temperature reaches 25℃, the relative humidity should be controlled at 40-50%, and when the room temperature reaches 18℃, the relative humidity should be controlled at 30-40%. Families with humidifiers should always adjust the indoor humidity in order to fully serve your health.

Question 2: How much indoor humidity is normal? The relative humidity of indoor air is 50%, which is the most comfortable humidity. I hope I can help you! O(∩_∩)O

Please accept it, thank you!

Question 3: How much normal humidity in the air is most suitable for people? Generally speaking, the most comfortable indoor temperature for human body is 15- 18℃. If the indoor air is not circulating or the relative humidity is less than 35%, and the indoor temperature exceeds 25℃, the human body will begin to absorb the external heat, and you will feel hot. If the temperature exceeds 35℃, the sweat glands of the human body will start at this time, accumulate body temperature through slight sweating, accelerate the heartbeat and accelerate the blood circulation. You will feel dizzy, unwell, tired, sleepy and extremely hot. Conversely, when the temperature is below 4℃, you will feel cold. When the room temperature is 8- 18℃, the human body will radiate heat to the outside, and the indoor relative humidity is between 40% and 60%, so you will feel comfortable and healthy. In the comfortable indoor temperature range, the influence of humidity on human body is not obvious. But when the temperature is 28℃ and the relative humidity reaches 90%, you will feel the temperature reaches 34℃. This is because when the humidity is high, the water vapor content in the air is high and the evaporation capacity is low, so it is difficult to evaporate a large amount of sweat discharged by the human body and the heat in the body cannot be dissipated smoothly. So, you will feel stuffy. Only in terms of relative humidity, the most suitable air relative humidity is 40%-50%, because in this humidity range, the life span of bacteria in the air is the shortest, and human skin will feel comfortable and breathe evenly and normally. According to meteorologists, when the relative humidity reaches 30%, the temperature of heatstroke is 38℃. When the relative humidity reaches 80% and the temperature is 365438 0℃, people with weak constitution sometimes suffer from heatstroke. If you encounter low temperature and high humidity in winter, people will feel wet and cold.

Conclusion: The healthy humidity environment is 45% ~ 65%. Under this humidity condition, the human body feels most comfortable, and all kinds of germs are not easy to spread. Humidity higher than 65% will cause discomfort to human respiratory system and mucosa and reduce immunity.

Question 4: What is the appropriate indoor air humidity? Physiologists believe that when the indoor temperature is too high, it will affect people's body temperature regulation function. In winter, if the indoor temperature is always above 23 degrees Celsius, people will be exhausted and dizzy. At the same time, due to the large temperature difference between indoor and outdoor, it is difficult for human body to adapt and it is easy to catch a cold. If the indoor temperature is too low, it will reduce the metabolic function of human body, slow down the pulse and breathing, weaken the resistance of respiratory mucosa, and easily induce respiratory diseases.

Pay attention to indoor humidity and indoor temperature adjustment. In summer, the indoor humidity is too high, which will inhibit the heat dissipation of the human body and make people feel very stuffy and irritable. In winter, indoor humidity is high, which makes people feel cold, depressed and easy to catch a cold. The most pleasant indoor temperature and humidity are: winter temperature 18℃ to 25℃, humidity 30% to 80%; In summer, the temperature is 23℃ to 28℃ and the humidity is 30% to 60%. More than 95% people feel comfortable in 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 air humidity. General relative humidity. Relative humidity refers to the percentage of water vapor density actually contained in the air and saturated water vapor density at the same temperature. The optimum relative humidity for human body to feel comfortable indoors is 49% ~ 5 1%. If the relative humidity is too low or too high, the human body will feel uncomfortable and even harmful to the human body. In northern China, stoves or heaters are used for heating in winter, and the indoor air is heated, which will lead to the decrease of indoor relative humidity. Especially in some central heating houses in big cities such as Beijing, the relative humidity is often as low as 10% due to the high room temperature. Living in this environment, people are prone to respiratory diseases, dry mouth, cleft lip and nosebleeds. This is because the nose, respiratory tract, lungs and reticular alveoli are covered by mucous membranes supporting hairy cilia. When the relative humidity of the air is lower than 40%, the movement of cilia will become very slow, so dust will easily stick to the mucosa, causing cough, which is not conducive to the elimination of germs, thus leading to the occurrence of respiratory diseases. In addition, due to the low relative humidity, a large amount of water is lost from human epidermis, which leads to the decline of skin elasticity, accelerated skin aging, rough epidermis, cell shedding and other phenomena, which reduces the skin's ability to resist germs to some extent. One of the main reasons for the delicate and smooth skin of southern women is the high relative humidity in the south. If the relative humidity is too low, it will also lead to the loss of wood moisture, resulting in deformation, cracking and damage of furniture or wood floors; Piano, violin and other musical instruments with high humidity requirements cannot be used normally; Cultural relics, archives and books are fragile and deformed. If the relative humidity is too high, indoor furniture, clothes, carpets and other items will be moldy, ironware will rust, and electronic devices will be short-circuited. Static electricity in carpets and wallpapers will cause * * * harm to human body and even cause fire. According to the measurement, experts believe that the best indoor humidity is as follows: living environment: 40% ~ 70% RH is the most favorable environment for disease prevention and treatment; 40% ~ 55% RH is the environment for books and cultural relics preservation; 40% ~ 60% RH computer and communication equipment storage environment: 45% ~ 60% RH cotton wool textiles storage: 40% ~ 60% RH dairy products storage: 50% ~ 60% RH sweets and snacks storage: 40% ~ 60% RH vegetables and fruits storage: 60% ~ 70% RH grain storage: 50. Artificial humidification needs to choose a suitable humidifier. In particular, you would rather spend more money on a humidifier than buy 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 to work. When the indoor environment reaches a specific humidity value, the humidifier can automatically stop; When it falls below a fixed value, the humidifier will automatically restart. This can not only realize humidification, but also avoid the phenomenon that the indoor environment is too humid because there is no automatic controller.

Question 6: What is the humidity in the bedroom? Scientific research shows that people are most comfortable in the environment with relative humidity of 45-65% RH and humidity index of 50-60, and it is not easy to cause respiratory diseases. However, the indoor humidity in winter heating period in northern China is usually 15% RH. In this dry environment, people generally feel all kinds of discomfort. When the air humidity is lower than 40% RH, the cilia on the mucous membrane of human nose and lung respiratory tract slow down, and dust, bacteria, etc. It is easy to adhere to mucous membranes, causing symptoms such as thirst, dry cough, hoarseness and sore throat. This also accelerates the reproduction of influenza virus and gram-positive bacteria that can cause infection, and is easy to spread with dust in the air, causing other diseases. Therefore, the invasion of dry cold air in autumn and winter is easy to induce diseases such as pharyngitis, bronchitis and pneumonia. In addition, allergic diseases such as allergic dermatitis, bronchial asthma and skin itching are also related to air drying. When the air humidity is higher than 65% RH, the amount of pineal hormone in the human body is also large, which makes the concentration of thyroxine and adrenaline in the body relatively low, and people will feel listless and depressed. Working and living in a place with high humidity for a long time is also prone to rheumatism, rheumatoid arthritis and other damp arthralgia, which eventually leads to the decline of human immunity.

It is precisely because air humidity affects people's health that we should adjust the indoor air humidity with the change of seasons to keep the indoor humidity within a suitable range. Generally speaking, the humidity is high in spring and summer, low in autumn and winter, and less windows should be opened in summer rainy days; When there is heating in winter, you should use a humidifier or humidify yourself or mop the floor with a wet mop to improve indoor humidity.

Question 7: What is the general humidity? Optimum air humidity refers to the degree of air humidity, which can be expressed by relative humidity (RH). Relative humidity refers to the percentage of water vapor density actually contained in the air and saturated water vapor density at the same temperature. The optimum relative humidity for human body to feel comfortable indoors is 49% ~ 5L%. Too low or too high relative humidity is uncomfortable and even harmful to human body. In northern China, stoves or heaters are used for heating in winter, and the indoor air is heated, which will lead to the decrease of indoor relative humidity. Especially in some central heating houses in big cities such as Beijing, the relative humidity is often as low as. 10% due to the high room temperature. Living in this environment, people are prone to respiratory diseases, dry mouth, cleft lip and nosebleeds. This is because the nose, respiratory tract, lungs and reticular alveoli are covered by mucous membranes supporting hairy cilia. When the relative humidity of the air is lower than 40%, the movement of cilia will become very slow, so dust will easily stick to the mucosa, causing cough, which is not conducive to the elimination of germs, thus leading to the occurrence of respiratory diseases. In addition, due to the low relative humidity, a lot of water is lost from human epidermis, which leads to the decrease of skin elasticity. In addition, due to the low relative humidity, a large amount of water is lost from human epidermis, which leads to the decline of skin elasticity, accelerated skin aging, rough epidermis, cell shedding and other phenomena, which reduces the skin's ability to resist germs to some extent. One of the main reasons for the delicate and smooth skin of southern women is the high relative humidity in the south. If the relative humidity is too low, it will also lead to the loss of wood moisture, resulting in deformation, cracking and damage of furniture or wood floors; Piano, violin and other musical instruments with high humidity requirements cannot be used normally; Cultural relics, archives and books are fragile and deformed. If the relative humidity is too high, indoor furniture, clothes, carpets and other fabrics will be moldy, ironware will rust, electronic devices will be short-circuited, carpets and wallpaper will generate static electricity, which will cause * * * even fire to human body. According to the measurement, experts believe that the best indoor humidity is: indoor environment: 40%-70% RH (relative humidity), the most favorable environment for disease prevention: 40%-55% RH book and cultural relics storage environment: 40%-60% RH cotton wool storage: 40%-60% RH candy and snacks storage: 50%-60%.

Question 8: What is the most suitable indoor air humidity? Everyone's feelings are different, so generally speaking, there is a range of indoor comfortable temperature and humidity, generally between 23-2 degrees at room temperature and 40%-65% at humidity.

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

Question 10: Indoor humidity is generally related to seasons. The humidity is 30% to 40% in spring and winter, and about 50% to 80% in summer and autumn. Generally, when the relative humidity is 40~70%, people feel comfortable. If it is less than this value, people will feel dry. If it is greater than this value, people will feel bored.