Modular Biosafety Cabinet

Aeromech^TM  Modular Biosafety Cabinet Type A1 & A2 are designed for the security and protection of operator’s product and environment from pathogenic agents and microorganisms transmitted in respiratory way and also for creation of a bacterial dust free air environment. It has a common plenum from which 30% of air is exhausted, and 70% re-circulated to the work area as part of the downflow. Type A cabinets drain out air directly back to the laboratory, and they may contain positive pressure contaminated plenums. When toxic chemicals must be employed as an adjunct to microbiological processes, these cabinets should not be used. Exhaust HEPA filtration only.

Removes airborne aerosols including biohazards, and not chemical fumes.

The Class II Type A1 consists of the positively-pressurized contaminated plenum bordering the ambient environment, and therefore is less safer than the Class II Type A2 that has a negative pressure surrounding the positively pressurized contaminated plenum. In any unlikely event of a leakage on the positive plenum, the leaking aerosol will be pulled by the negative pressure back to the positive plenum, which prevents it from leaking out. On the grounds of safety, the Type A1 design is now considered obsolete. In the A2 cabinet, approximately 70% of air from the positive plenum is re-circulated as downflow.

Product	Class II Bio safety Cabinet-Type A1
Air balancing	70% recirculation, 30% exhaust
Protection	Product & personnel & environmental protection
Bio safety Level	Bio safety Level 1, 2 & 3
Exhaust Duct Requirement	Inside the room / Thimble duct
Control Plenum surrounded by	Outside Air
Cleanliness level	ISO class 5 as per ISO 14644-1
Average Airflow Velocity	Inflow Velocity	Minimum 0.45 m/s ( 90 FPM) at 8" front opening
	Down Velocity	0.30 m/s ( 65 FPM)
Noise level	60 db on A scale
Light Intensity	Minimum 900 lux inside the working area at ambient zero
MOC	Main Body	Galvanized Iron with PU coated / Stainless Steel - Satin Finish
	Working Area	Stainless Steel IS 304 Grade Satin Finish
Supply Filter	HEPA Filter having EU 13 rating with suitable size.
Efficiency	99.99% down to 0.3 Microns.
Exhaust Filter	HEPA Filter having EU 13 rating with suitable size.
Efficiency	99.99% down to 0.3 Microns.
Pre Filter	Aeromech® make, EU 4 rating with suitable size.
Efficiency	90% down to 10 Microns.
Noise Level	Less than 70 db 'A'.
Vibration Level	Minimum.
Instrumentation
Differential Pressure Gauge	Magnehelic Gauge - 01 No. (make : Dwyer, USA) with each unit (To measure differential pressure across the supply HEPA filter).
Motor Blower Assembly	Statically & Dynamically balanced with suitable rating and size. (Induction motor with centrifugal blower) A Mounting unique spring suspension system to take care of vibration and noise.
3 Pins Switch & Socket	15 AMPS - 1 set in each unit.
Other Switches	On/Off switches for motor blower & CFL lights.
Microprocessor Control	Airflow display and UV Interlocking and Low airflow Alarm and Supply & Exhaust filter Fail