Ⅰ 0.4 /30minφ90 vegetables (10 /m3) 5 /cm2 1000 (local 100).
Ⅱ1.5/30minφ 90 vegetable (50 /m3) 5 /cm2 10000.
Ⅲ 4 pieces /30minφ90 dishes (150 pieces /m3) 5 pieces /cm2 100000.
Ⅳ 5 pieces /30minφ90 dishes (175 pieces /m3) 5 pieces/cm2 300,000 class.
Cleanliness level is suitable for the room layout of operation type.
100 level
(especially clean) valve replacement, heart surgery, organ transplantation, artificial joint replacement, neurosurgery, operating room.
1 000 level
(standard clean) preparation room for cardiopulmonary bypass perfusion in ophthalmology, plastic surgery, partial burns, orthopedics, general surgery, hepatobiliary and pancreatic surgery.
10 000 level
(generally clean) operating rooms and sterile rooms for thoracic surgery, urology, obstetrics and gynecology, otolaryngology, general surgery (except Class I surgery).
100 000 level
(general cleaning) outpatient, emergency, infection surgery, corridors, toilets, systemic burns,
Anesthesia preparation room