The quality of living conditions is closely related to people's health. Regarding the hygiene requirements of modern residential buildings, scientists have determined the following main criteria for measuring whether a living room is hygienic, i...
The quality of living conditions is closely related to people's health. Regarding the hygiene requirements of modern residential buildings, scientists have determined the following main criteria for measuring whether a living room is hygienic, including sunshine, lighting, floor height, microclimate and air cleanliness.
Sunshine: Sunshine mainly refers to the time and intensity of sunshine shining in the living room. After being exposed to ultraviolet rays in the sunlight, human skin can produce vitamin D, which can prevent rickets in children; sunlight can kill pathogenic microorganisms in the air in the room; it can give people vitality and improve the body's immune ability. Living in the room for 2 hours a day is the minimum requirement for maintaining healthy growth. Generally, houses facing north and south have better lighting, warm in winter and cool in summer.
Day: Lighting refers to the natural light that can be obtained in the house. The ratio of the effective light-transmitting area of the window to the floor area of the room should not be less than 1:5.
Height: Floor height generally refers to the height from the ground to the ceiling. People live in a certain space, and breathing causes changes in air composition within a certain height range, which is medically called the breathing belt. It was determined that the content of carbon dioxide and other harmful gases in the respiratory zone is much higher than that in other places. Therefore, in the south, the floor height of a residential house should not be less than 2.8 meters, and in the north it is most suitable to be 2.8 meters to 3 meters.
Microclimate: Microclimate refers to the temperature, relative temperature and wind speed of the indoor environment. Room temperature should not be lower than 12℃ in winter, and the relative humidity should not be greater than 65%. It should not be higher than 30℃ in summer.
Air cleanliness: Air cleanliness mainly refers to the total number of certain harmful gases, metabolites, dust and bacteria in the indoor air cannot exceed a certain amount. These gases are mainly carbon dioxide, sulfur dioxide, formaldehyde, etc. These gases and substances are very harmful to the human body. Excessive concentration can cause cardiovascular and respiratory diseases, including carcinogens. To this end, a certain location should be selected for newly built residences; some corresponding measures should be taken indoors, such as setting up mother-child ventilation holes in the kitchen, etc., and exhaust devices should be installed if conditions permit to reduce the kitchen's pollution to the residential air.
In addition to the above five basic standards, indoor hygiene standards also include requirements such as lighting, isolation, moisture prevention, and radiation prevention.
