As we all know, it is necessary to maintain the balance of temperature and humidity in the dust-free workshop to meet the needs of the construction process. If the temperature and humidity in the dust-free workshop do not meet the standard, it will have a serious impact on production

　　1. Dust-free workshop | SMT workshop

　　Temperature and humidity standard of dust-free workshop: temperature: 24 ± 2 ℃ humidity: 50 ± 10% SMT workshop has clear requirements for temperature and humidity. First of all, it is mainly to ensure that the solder paste can work in a good environment. Temperature will affect the activity of solder paste, and will have a certain impact on the activity of the relevant solvents of the added flux. High temperature will increase its activity, and ultimately affect the effect of silk screen mounting and reflow. It is easy to appear such phenomena as faulty soldering and solder joint glossiness. The humidity will cause the amount of moisture absorbed by the solder paste in the air, such as excessive moisture absorption,

　　It will cause air void, flying gradual, continuous welding and other phenomena during reflux.

　　2. Dust-free workshop

　　Temperature and humidity standard of dust-free workshop: without special requirements, the room (area) where the relative humidity is controlled between 45% and 65% at 18~26 ℃ and the biological manufacturing workshop needs to control the dust particles and microbial pollution in the environment, its building structure, equipment and use have the function of preventing the introduction, generation and retention of pollutants in the area.

　　3. Dust-free workshop

　　Temperature and humidity standard of dust-free workshop: the temperature is controlled at about 22 ℃, and the relative humidity is controlled at 55~60% RH. Because the requirements for indoor air environment and quality are extremely strict during the manufacturing and production of electronic products, the main object is to control particles and floating dust. At the same time, strict regulations are also made for the temperature and humidity, fresh air volume, noise, etc. of its environment. It needs to eliminate static electricity and make people feel comfortable.

　　4. Clean workshop | Food and beverage manufacturing workshop:

　　Temperature and humidity standard of dust-free workshop: the relative humidity should be controlled at ≤ 50% RH. The food dust-free workshop has relatively high requirements for production cleanliness, usually from 100000 to 10000, but at the same time, the lower the humidity of the workshop, the easier it is to breed bacteria, and bacteria and other biological pollutants (mold, virus, fungus, mites) can reproduce actively in the environment with a relative humidity of more than 60%. Some bacterial groups can grow when the relative humidity exceeds 30%. When the relative humidity is between 40% and 60%, the influence of bacteria and respiratory tract infection can be reduced to a very low level.