P2 Laboratories: Basic laboratories, suitable for pathogenic factors that reveal moderate or potential hazards to humans, animals, plants, or the environment, will not cause serious harm to healthy adults, animals, and the environment, and have effective prevention and treatment measures
P2 laboratory is a classification of the safety level of the biological laboratory. In the present various types of laboratories, P2 laboratory is the most widely used biological safety laboratory, its rating is P1, P2, P3 and P4. The World Health Organization (who) according to the dangerous degree of the pathogenicity and infection, infectious microorganisms division for four types. According to the condition of equipment and technology, the biological laboratory is also divided into 4 (commonly known as P1, P2, P3, P4 laboratory). Level 1 is the lowest, 4 is the highest level.
1. The minimum installation space for a P2 Laboratory is 6 .0 * 4.2 * 3.4 m (L* W * H).
2. The floor should be flat with a variance of less than 5mm/2m.
3. Preliminary site preparations must include:
1) Wiring for 220 V/ 110V, 50Hz, 20KW.
2) Plumbing connections for water and drains.
3) Connections for network and telephone wiring.
In a BSL-2 lab, the following conditions are to exist:
Doors that can be locked and secured should be installed for facilities that house restricted areas.
Consideration should be given to locating new laboratories away from public areas.
Each laboratory contains a sink for handwashing.
The laboratory is designed so that it can be easily cleaned. Carpets and rugs in laboratories are inappropriate.
Bench tops are impervious to water and resistant to moderate heat and the organic solvents, acids, alkalis, and chemicals used to decontaminate the work surfaces and equipment.
Laboratory furniture is capable of supporting anticipated loading and uses. Spaces between benches, cabinets, and equipment are accessible for cleaning. Chairs and other furniture used in laboratory work should be covered with a non-fabric material that can be easily decontaminated.
Biological Safety Cabinets
Biological safety cabinets should be installed in such a manner that fluctuations of the room’s air supply and exhaust air do not cause them to operate outside their parameters for containment. Locate BSCs away from doors, windows that can be opened, heavily traveled laboratory areas, and other potentially disruptive equipment so as to maintain the BSC’s air flow parameters for containment.
An eyewash station is readily available.
Illumination is adequate for all activities, avoiding reflections and glare that could impede vision.
There are no specific ventilation requirements. However, planning of new facilities should consider mechanical ventilation systems that provide an inward flow of air without recirculation to spaces outside of the laboratory. If the laboratory has windows that open to the exterior, they are fitted with fly screens.