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The humidity on the hygrometer is relative humidity.
Higher values mean wetter and lower numbers mean drier.
There are two concepts involved here, which are absolute humidity.
and relative humidity.
Absolute humidity is the amount of gaseous water that air can actually hold at a fixed temperature and pressure. Relative humidity, on the other hand, is the actual absolute humidity as a percentage of the maximum amount of moisture that can be contained. The humidity that affects the human body is usually based on the relative humidity.
At room temperature 18, a relative humidity of 30%-40% is optimal. When the room temperature reaches 25, it is best to maintain a relative humidity of 40%-50%.
For families with babies, it is advisable to keep the humidity at 50% to 60% under normal circumstances. It can be appropriately adjusted according to the characteristics of children's sensitivity to cold and heat.
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Conversely, the higher the value, the higher the humidity.
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A humidity of 70 is relatively humid.
Humidity, generally referred to in meteorology, refers to the humidity of the air, which is the amount of water vapor in the air. Water in liquid or solid state in the air is not counted in humidity. The less water vapor is contained in a certain volume of air at a certain temperature, the drier the air; The more moisture, the more humid the air.
The humidity that the human body feels comfortable with is less than 70% relative humidity.
Comfortable temperature of the human body:
Scientific studies have shown that the human body feels most comfortable when the ambient temperature is between 18 and 25 and the relative humidity is 40 to 70 percent. When the temperature is between 26 and 30 and the humidity is less than 60%, the human body feels hot but not stuffy; When the temperature is higher than 30 and the humidity is greater than 70%, the human body feels stuffy. The best comfort of the human body is related to altitude and latitude.
Relevant foreign studies call 22 to 23 a neutral temperature. At neutral temperatures, the human body does not need to release excess heat or keep warm, and the human body exchanges little heat with the outside world. At this time, the human body is at the lowest point of energy consumption, and the human body feels the most comfortable.
Neutral temperature is the lowest point in the incidence of circulatory and respiratory diseases.
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Dry. Judging Criteria:
1: The upper limit of relative humidity should not exceed 80%, and the lower limit should not be less than 30% It is not very humid in the range, and the most pleasant indoor temperature and humidity are: temperature is 18 to 25, humidity is 30%.
2: The air humidity is 40% 60% is the appropriate environmental humidity for people, which is beneficial to human health. And 50% to 60% of the environments are the most comfortable. More than the above data are considered dry.
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The upper limit of relative humidity should not exceed 80% and the lower limit should not be less than 30% It is not very humid in the range, and the most pleasant indoor temperature and humidity are: 18 to 25 and 30% humidity
The air humidity at 40% and 60% is the appropriate environmental humidity for people, which is beneficial to human health. And 50% to 60% of the environments are the most comfortable. More than the above data are considered dry.
The degree of wetness and dryness of the air is called "humidity". Air with a relative humidity of 100% is saturated air. Relative humidity is 50% of the air containing water vapor that reaches half of the saturation point of the air at the same temperature.
Answer Supplement Humidity generally refers to air humidity in meteorology, which is the amount of water vapor in the air. Water in liquid or solid state in the air is not counted in humidity. Air that does not contain water vapor is known as dry air.
The measurement method of air humidity requires two thermometers, one of which is wrapped in a damp cloth, the lower end of the damp cloth is immersed in pure water, and the other is exposed to the air, put them in the same place, and write down the temperature at 8:00 and 20:00 respectively, and the air humidity can be calculated.
Air humidity, which is the amount of water vapor in the air. Water in liquid or solid state in the air is not counted in humidity. Air that does not contain water vapor is known as dry air.
Since water vapor in the atmosphere can make up 0% to 4% of the volume of air, the composition of various gases in the air is generally referred to when listing the composition of these components in the dry air. The humidity is determined according to the conductivity of the moisture sensitive resistor or moisture sensitive capacitor at different humidity.
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Summary. The higher the humidity count value, the wetter it gets. The humidity of the air can be expressed by the density of the water vapor contained in the air, that is, the mass of the water vapor contained in the unit volume of air Because it is difficult to directly measure the density of water vapor in the air, and the pressure of water vapor increases with the increase of water vapor density, the humidity of the air is usually expressed by the pressure of water vapor in the air, which is the absolute humidity of the air.
Hygrometers are used in a wide range of applications, such as in ultra-pure metal smelting, textile processing, production processes such as paper and dyeing, as well as food storage and meteorological measurements, where they are often used to measure or control the humidity of air or industrial process gases.
The higher the humidity count value, the wetter it gets. The humidity of the air can be expressed by the density of the water vapor contained in the air, that is, the mass of the water vapor contained in the air of a single stool Because it is difficult to directly measure the density of water vapor in the air, and the pressure of water vapor increases with the increase of water vapor density, the humidity of the air is usually expressed by the pressure of water vapor in the air, which is the absolute humidity of the air. Hygrometers are used in a wide range of applications, such as in ultra-pure metal smelting, textile processing, papermaking and dyeing processes, as well as food storage and meteorological measurements.
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Humidity is expressed as a percentage, usually 48 78 is the water content in the air, the higher the water content, the higher the humidity, that is, the larger the number.
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The bigger it is, the wetter it gets. The humidity is kept at around 40 and people are most comfortable.
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Yes, generally reaching 60 is the most suitable for people.
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No, that's because of the rising temperature
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You can do an experiment, put a basin of cold water in the middle of the bedroom (take a ruler to measure the height) before going to bed at night, and check the remaining height of the cold water in the basin after getting up the next day, if the reduction is greater than 5%, it means that the room is drier.
The most pleasant indoor temperature and humidity are: 18 degrees Celsius to 25 degrees Celsius in winter, and humidity 30 to 80; In summer, the temperature ranges from 23 to 28 degrees Celsius and the humidity ranges from 30 to 60. More than 95 people feel comfortable in this range.
People are most comfortable in air-conditioned rooms with room temperatures ranging from 19 degrees Celsius to 24 degrees Celsius and humidity levels of 40 to 50.
Air humidity refers to how humid the air is. General relative humidity indication. Relative humidity is the percentage value of the actual water vapor density of the air and the saturated water vapor density at the same temperature.
The best relative humidity for the human body to feel comfortable indoors is 49% to 51%, and if the relative humidity is too low or too high, the human body will feel uncomfortable and even harmful to the human body.
Appropriate temperature and humidity play an important role in the living environment, it directly affects a person's health, if the temperature and humidity are too high or too low will be detrimental to human health.
Generally speaking, the most comfortable temperature for the human body in the room is 15-18, if the indoor air is not circulated or the relative humidity is less than 35, and the indoor temperature is more than 25, the human body begins to absorb heat from the outside world, you will have a feeling of heat. If the temperature exceeds 35. At this time, the body's sweat glands begin to activate, and the body temperature is stored through slight sweating, and the heart beats faster.
When the blood circulation accelerates, you will feel dizzy, feel unwell and tired, feel drowsy, and the heat will be unbearable. On the contrary, when the temperature drops below 4, you will feel cold. When the room temperature is between 8 and 18, the human body will dissipate heat to the outside world, and the indoor breeze is blowing, and the indoor relative humidity is between 40 and 60, and you will feel comfortable and healthy.
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There is that kind of dual-purpose, both temperature and humidity In fact, the hygrometer is not very useful, we can tolerate the general humidity, if it is really uncomfortable, you can feel it, there is no need to measure it at all.
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You buy a thermohygrometer and put it in the house, and you know, basically the readings on the meter are fine.
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Typographical error: There are hygrometers that sell them, just like thermometers, just buy one and hang it in the room.
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There are a lot of humidity thermometers nowadays. It's not expensive, and it's relatively accurate.
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There are hygrometers that sell them, like thermometers, and you can just buy one and hang it in your room.
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It's good to get a temperature and humidity meter, and it's not expensive, it's usually only one or twenty yuan.
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Buy a hygrometer, not expensive.
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The most suitable humidity for human life is 45% to 65%.
1. When the weather is fine, open the doors and windows of the house to ensure indoor ventilation, which can reduce the humidity in the house. When it rains, close the windows.
2. Turn on the dehumidification function of the air conditioner to reduce the humidity in the room.
3. Put a few packets of activated carbon indoors to adsorb moisture.
4. Put a stove in the house to reduce the humidity of the house.
5. Put some lime in the house to absorb moisture in the air.
How does an electronic hygrometer work?
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