What is the biggest source of pollution in a clean room?
To say that the biggest source of pollution in clean rooms is, of course, the human body.
According to statistics, the proportion of dust generation in the air in the clean room is 5%-10%, the proportion of dust generation by decoration is 20%-30%, the proportion of dust generation by gas and liquid is 5%-10%, and the proportion of dust generation by machines is 20%-30%. The proportion of dust generated by personnel accounts for 30%-40%, which shows that people are the largest source of pollution in clean rooms.
Humans will release and secrete pollutants in the process of metabolism; human surfaces and clothes will be contaminated or carry pollutants; human activities in clean rooms will produce particles and microorganisms. Therefore, the staff entering the clean room need to wear clean clothes. The clean clothes fabric itself does not emit dust, does not vacuum, and has good barrier properties. It can retain the particles emitted by the body, effectively ensure product quality, and protect the safety of staff.
When wearing clean clothes, the hood of the clean clothes should cover all hair and beard and other related parts, and the hood should be tucked into the collar. When wearing sterilized rubber or plastic gloves that are free of particulate matter (eg, talc), the cuffs should be tucked into the gloves. When wearing a foot cover, the trouser legs should be tucked into the foot cover.