Laminar flow purification operating room requires not only high air cleanliness (the air entering the operating room must be purified by high efficiency filter first), but also control the direction of airflow (that is, use laminar flow ultra-clean device), so that the airflow flows from the operating area with high cleanliness to the area with low cleanliness, taking away and discharging dust particles (dust particles) and bacteria in the airflow; Laminar flow is a thin air flow, which is transported in the same direction at a uniform speed; The flow direction of purified air can be divided into vertical laminar flow and horizontal laminar flow. Here, Anhui Renhe Purification will introduce the purification level and cleanliness level of operating rooms in China.

Classification of laminar flow purification operating room

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 (extra clean) valve replacement, cardiac surgery, organ transplantation, artificial joint replacement, neurosurgery and operating room.

1 000 grade (standard clean) cardiopulmonary bypass perfusion preparation room for ophthalmology, plastic surgery, partial burns, orthopedics, general surgery, hepatobiliary and pancreatic surgery.

10 000 class (generally clean) operating rooms and sterile rooms for thoracic surgery, urology, obstetrics and gynecology, otorhinolaryngology, general surgery (except Class I surgery).

100 000 grade (generally clean) outpatient service, emergency treatment, infection surgery, whole body burn corridor, toilet and anesthesia preparation room.