Use and Cleanness Rating of BCR
Definition of BCR SYSTEM
According to the summary of NASA size, Biological Clean Room means airtightroom which maintains indoor temperature and humidity to meet certain standards, and controls biological particles and microorganism particles. BCR focuses on controlling the number of microorganisms in addition to the functions of existing H.V.A.C system Moreover. controlling microorganism requires not only system, but also training or operating method of the people working there. BCR technology includes all of these features.
System purpose
- Maintaining cleanness within a clean room, quick exhaust of pollutants, maintaining of temperature and humidity
- Preventing indoor accumulation of pollutants through vertical streamline flow, vertical streamline flow
- Creating clean working space for operator through temperature and humidity control
System feature
- Compact realization (Fan+Filter+Cooling coil)
- Low noise
- Enhancement of construction
- Use of highly-efficient filter (HEPA Filter)
- Minimizing electricity consumption
Independent cooling and heating operation
- Traffic line of doctors and nurses who conduct operation
- Prevention of germ pollution during operation
- Complete sterilization of operation machine
- Maintaining pressure balance of operating room
- Traffic line of patients and supplies
AIR FLOW DIAGRAM
- Realizing the clean hospital environment
- Uniform layer formation wall return method
- Space, Compact design
- Independent cooling and heating operation is possible
ZONING DEPENDING ON CLEANLINESS AND VENTILATION CONDITION
Clean zone | Name | Cleanliness (no. of microorganisms in the air) | Temperature and Humidity | Indoor noise (N/C) | Minimum external facility amount (times/HR) | Minimum exclusive amount (times/HR) | Indoor pressure | 실내순환 기기설치 Installation of indoor circulation | 최종필터의 효율 Efficiency of a final filter | 비고 Remarks |
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Summer | Winter | ||||||||||||
Temperature (℃DB) | Humidity (%RH) | Temperature (℃DB) | Humidity (%RH) | ||||||||||
Highly clean zone | Streamline flow type Bio clean operating room | 100 | 25 | 55~60 | 24 | 55 | 30 | 30 | 200~400 | Positive pressure | × | DOP계수법 99.97%이상 DOP coefficient method 99.97% or over | - |
Clean zone A | Operating room, Emergency room Neonatal room of serious disease, Aseptic medicine room | 1,000 | 25 | 55~60 | 24 | 50 | 30 | 10 | 50 | Positive pressure | × | DOP계수법 95~99.97% DOP coefficient method 95~99.97% | 수술실은 무균수술,청정 수술, 비청정수술구역으 로 구분한다. Operating room is divided into an aseptic operation, clean operation, non clean operation zones |
Clean zone B | Immature infant room, ICU, Delivery room, Special ward | 10,000 | 25 | 55~60 | 24 | 50 | 30 | 3~4 | 20~30 | Positive pressure | × | 비색법 60%이상 Colorimetr 60% or over | - |
Semi-clean zone | Outpatient room, X-ray room, Nspection room, Ward | 10,000 | 25 | 55~60 | 24 | 50 | 30 | 2~3 | 10~20 | Positive pressure/ Even pressure | O | 비색법 60%이상 Colorimetr 60% or over | 각과마다 Zoning한다 Zoning for each department |
General zone | Office, Pharmacy,General restaurant | - | 25 | 55~60 | 24 | 50 | 30 | 1.5~2 | 4~6 | Positive pressure/ Even pressure | O | 비색법 60%이상 Colorimetr 60% or over | - |
Zone to prevent spread of pollution | Microorganism inspection room, MRI inspection room, Serious inspection room, dissecting room | - | - | - | - | - | - | - | Ventilation 10 | Negative pressure | × | 비색법 60%이상 Colorimetr 60% or over | - |
Polluted zone | General toilet, Laundry classification room | - | - | - | - | - | - | - | Ventilation 10 | Negative pressure | × | - | - |
Ventilation of 20times/HR in a kitchen and a laundry room among general areas