Biosafety Cabinet
Different Names Same Purpose
A Biosafety cabinet is called by several names in research industry; microbiological safety cabinet, biological safety cabinet (Acronym: BSC) and Biosafety hood are such common names which are referred by microbiologists.
Types of Class 2 Biosafety Cabinet
In order to meet varying research and clinical needs, Biosafety Cabinets are designed mostly in 3 types i.e. Type A2, Type B1, and Type B2. Regardless of type, each cabinet provides the same level of protection. According to international sanitation standards, there are exactly same pass and fail criteria for all of them.
Now how do we differentiate each Class 2 Biosafety Cabinet? Each Biosafety Cabinet is differentiated by a number of factors some of them are amount of air re-circulation, air ventilation and negative and positive pressure. Before buying a cabinet a user must know the basic differences between these 3 types of Biosafety cabinets which are explains below:
Biosafety Cabinet Class 2 Type A2:
In this type of Class II BSC, approximately 70% of the HEPA filtered air is circulated through the cabinet, while 30% passes through an exhaust HEPA filter and is discharged.
Biosafety Cabinet Class 2 Type B1:
This Class II BSC, exhausts 60% - 70% of the HEPA filtered air, while 30% - 40% air is re-circulated inside workspace through HEPA filter.
Biosafety Cabinet Class 2 Type B2:
It is total exhaust type BSC, no re-circulation inside workspace; blower exhausts 100% of the filtered air.
Biosafety Cabinet Maintenance:
In order to take optimum use of a Biosafety cabinet and maintain operational integrity, proper maintenance is essential. A Biosafety operator must follow routine cleaning and inspection schedule. As chemicals are extensively used in these Biosafety Cabinets, filter saturation should be checked regularly, if need replace it immediately. Other minor check-ups should be done on regular basis such as air flow, surface cleaning, motor, and lighting and electrical switches etc.
Customized Class II Biological Safety Cabinets:
Harkmech Engineering Systems is India's leading Biosafety cabinet company, which manufactures and supplies most reliable, durable and energy efficient Biosafety cabinets following European StandardEN12469 and NSF Standards. These Biosafety Cabinets provide higher level of protection to operator, environment and samples. Our Biosafety Cabinets are available in 4 different sizes (3ft, 4ft, 5ft and 6 ft), designed as ducted or recirculating type and offer unique safety features. There are various design options and accessories available in order to make a Biosafety Cabinet adaptable to almost every application. Each Biosafety Cabinet is factory tested and delivers full value of your money, while remaining reasonable in price.
Features:
Class 5 conditions (class 100) per ISO 14644-1 and 2 |
10 sloped front for comfortable working |
Produces less heat and energy efficient |
Highly efficient airflow management system |
Lightening through fluorescent lamp |
Filters can be changed easily front side |
Durable construction for long service life |
Durable wall plenum design |
Easy to clean and maintain |
Powder coated MS exterior |
Low noise operation |
Audio / visual sash alarm |
Standard Sizes (Dimensions)
Nominal Size |
2 ft. |
3 ft. |
4 ft. |
5 ft. |
6 ft. |
Working area (ft.) |
2 x 2 x 2 |
3 x 2 x 2 |
4 x 2 x 2 |
5 x 2 x 2 |
6 x 2 x 2 |
External size (ft.) |
2 x 3 x 7 |
3 x 3 x 7 |
4 x 3 x 7 |
5 x 3 x 7 |
6 x 3 x 7 |
Specifications:
Inflow Velocity |
105 fpm (.53 m/s) |
Downflow Velocity |
60 fpm (0.30 m/s) |
Noise Level |
<65 dba |
Filter |
HEPA filter 99.999% efficient (ULPA - Optional) |
Particle retention |
0.3 microns |
Light |
Fluorescent light |
Light Intensity |
90 - 120 foot-candles |
Controller |
Microprocessor controller w/ digital display |
Body Construction |
Wooden / PCRC Sheet / SS 304 / SS 316 |
Table Construction |
Stainless Steel 304 |
Front Door |
Frameless auto sliding glass door |
Pressure Gauge |
Magnehelic gauge |
Blower assembly |
1/3 HP, Single Phase, 1440 RPM motor, Capacity 1000 CFM, Pressure 30 mm WG |
Exhaust assembly |
300 CFM, ducting by PVC pipe with rain guard - Dia. 150mm |
Certifications |
NSF/ANSI 49 (Optional) |
Optional |
- Raised airflow grill |
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