2. Thousand-class operating room refers to: the cleanliness is 1000, and the number of dust particles greater than or equal to 0.5μm is greater than 3,500 particles /m3(3.5 particles /L) to less than or equal to 35,000 particles /m3(35 particles/L); The number of dust particles greater than or equal to 5μm is less than or equal to 300 /m3(0.3 /L).
3. The 10,000-class operating room refers to: the cleanliness is 10000, and the number of dust particles greater than or equal to 0.5μm is more than 35,000 /m3(35 /L) to less than or equal to 350,000 /m3(350/L); The number of dust particles greater than or equal to 5μm is greater than 300 particles /m3(0.3 particles /L) to less than or equal to 3000 particles /m3(3 particles /L).
Extended data
Laminar operating room, that is, laminar clean operating room, is a multifunctional air purification measure, which filters dust particles in the air and makes bacteria spread without carriers, thus effectively preventing and controlling the occurrence of infection, and at the same time providing suitable temperature and humidity environment to minimize the damage to patients' tissues during the operation.
The air cleanliness level of laminar flow operating room is divided into five levels: 100, 1000, 10000, and 300000 according to the Technical Specification for Building of Hospital Clean Operating Department (GB50333-2002) issued by the Ministry of Construction.
References:
Baidu encyclopedia-laminar flow operating room