1. Cleanliness level 100
The number of dust particles greater than or equal to 0.5μm is greater than 350 particles/m3 (0.35 particles/L) to less than or equal to 3500 particles/m3 (3.5 particles/L) L);
The number of dust particles larger than or equal to 5μm is 0.
2. Cleanliness level 1000
The number of dust particles greater than or equal to 0.5μm is greater than 3500 particles/m3 (3.5 particles/L) to less than or equal to 35000 particles/m3 (35 particles/L) L);
The number of dust particles larger than or equal to 5μm is less than or equal to 300 particles/m3 (0.3 particles/L).
3. Cleanliness level 10,000
The number of dust particles greater than or equal to 0.5μm is greater than 35,000 particles/m3 (35 particles/L) to less than or equal to 350,000 particles/m3 (350 particles/L) L);
The number of dust particles larger 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 information:
According to the degree of sterility or sterility during surgery, operating rooms can be divided into the following five categories:
(1) Class I operating room : It is a sterile and purified operating room, which mainly accepts brain, heart, organ transplant and other surgeries.
(2) Class II operating room: a sterile operating room, which mainly accepts splenectomy, open reduction of closed fracture, intraocular surgery, thyroidectomy and other sterile surgeries.
(3) Category III operating room: an existing bacterial operating room that accepts operations on the stomach, gallbladder, liver, appendix, kidney, lung, etc.
(4) Category IV operating room: that is, the infection operating room, which mainly accepts operations such as appendiceal perforation and peritonitis surgery, tuberculous abscess, and abscess incision and drainage.
(5) Category V operating room: that is, a special infection operating room, which mainly accepts operations involving infections caused by Pseudomonas aeruginosa, Bacillus gas gangrene, and Bacillus tetanus.
According to different specialties, the operating room can be divided into general surgery, orthopedics, obstetrics and gynecology, brain surgery, cardiothoracic surgery, and urology. Operating rooms such as burn department and ENT department. Since surgeries of various specialties often require specialized equipment and instruments, the operating rooms of specialized surgeries should be relatively fixed.
Baidu Encyclopedia-Operating Room