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Digital Hand-held 'Pocket' Refractomter won the Good Design Award for the year 2003. Since the measurement range of PAL-2 is Brix 45.0 - 93.0%, it can measure various high concentration samples such as jam, marmalade, jelly, honey and concentrated juice. The International Protection class of PAL-2 is ... more

 ESCO Class II Safety Cabinet
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ESCO Labculture® Class II Type B2 B-Series Biosafety Cabinets

Incorporating all the latest design features available on Esco’s Labculture®Class II Type A2 biohazard safety cabinet, Esco Labculture®Class II Type B2 biohazard safety cabinets are designed to provide product, operator and environment protection and are suitable for general microbiological work with agents assigned to biological safety levels 1, 2, or 3.

In a Class II Type B2 cabinet, all inflow and downflow air is exhausted via ductworks after HEPA/ULPA filtration to the external environment without recirculation within the cabinet.

These cabinets are supplied with an integral exhaust collar that allows the cabinet exhaust to be ducted to the external environment via dedicated ductwork. Because they incorporate a non-recirculating total exhaust design, Class II Type B2 cabinets are suitable for work with toxic chemicals when these may be used as adjunct to microbiological processes. Total exhaust also serves as an additional fail-safe in case exhaust ULPA-filtration fails to ensure containment. The Labculture® Class II Type B2 cabinet is now available with Esco’s latest Sentinel™ Microprocessor Cabinet Control system which further enhances the cabinet function, usage and security features.

High-quality ULPA downflow filter with a typical efficiency of 99.9999% at MPPS, 0.3 and 0.12 microns provide the best product and operator protection in the world, while HEPA exhaust filter with a typical efficiency of 99.99% at 0.3 microns provides environmental protection. Typical filter lifespan is more than 3 years.

The exhaust sensor monitors the exhaust airflow and if exhaust airflow is lower than the minimum safe airflow, the sensor automatically shuts down the cabinet fan. This interlocking system prevents the reduction of inflow which can compromise operator protection.

ISO Class 3 air cleanliness within work zone as per ISO 14644.1 (equivalent to Class 1 as per US Federal Standard 209E, 100 times "cleaner" than the usual Class 100 classification on cabinets offered by other manufacturers).

The sleek, ergonomically styled 10-degree sloped front eliminates glare and increases operator-reach into work zone with less physical strain. The 5000k colour temp fluorescent lighting system is used for less glare and greater operator comfort. A large 203 mm / 8 inch (258 mm / 9.8 inch, measured from work surface) work access opening allows easier access into the work zone.

Front armrest is raised above the air grille perforations to prevent the operator’s arms from blocking air inflow during usage. In addition, front perforations are curved to prevent users from placing any objects on the grille itself.

The sidewall is closed which enhances cleanability - there are no perforations, air return slots, or hard to reach hidden areas where contaminants can accumulate. Especially unique is the single joint between the side wall liners and the lower drain pan which is sealed rather than left open as is usually the case with other designs.

The cabinet sidewall is under negative pressure. This means, as a system, the cabinet is inherently safe. Even in the event both internal and external walls are punctured, there will still be no leakage of contamination from the cabinet. Single wall designs employed by many other brands can result in safety hazards if seals fail.

Inherently safe design maintains containment for protection even with some or all work trays removed, thus preventing hazardous exposure during cleaning and maintenance.

Aerodynamically designed front airflow intake zone eliminates turbulence and the possibility of loss of containment. In addition, potential air leakages are prevented by the enhanced side capture zones between the work surface and the cabinet sidewalls.

For maximum safety, in case the sash is raised above the correct operating height, thus compromising containment, built-in Esco Sentinel™ Microprocessor control system will alert the operator with audible and visual alarms. A unique standby mode is activated automatically when sash is lowered below correct operating height.

All electrical penetrations into and out of contaminated areas are meticulously sealed and pressure-tested at the factory.

The electrical system of the cabinet has been designed in accordance with the requirements of the following standards: IEC 61010-1, EN 61010-1, UL 3101-1 and CSA C22.2 No. 1010.1-92. All components are UL-listed or recognised.

Technical Data

General Specifications LB2-3BX LB2-4BX 5BX LB2-6BX
External Dimensions (L x W x H) 1115 x 815 x 1568 mm (40.7" x 33.3" x 61.7")

1420 x 815 x 1568 mm (52.7" x 33.3" x 61.7")

1725 x 815 x 1568 mm (64.7" x 33.3" x 61.7")

2030 x 815 x 1568 mm (80.0" x 33.3" x 61.7")

Internal Work Zone (L x W x H)

955 x 603 x 715 mm (37.6" x 21.3" x 28.1")

1260 x 603 x 715 mm (49.6" x 21.3" x 28.1")

1565 x 603 x 715 mm (61.6.6" x 21.3" x 28.1")

1870 x 603 x 715 mm (73.6" x 21.3" x 28.1")

Standards Compliance

  • Air cleanliness : ISO 14664.1 Class 3, IEST-G-CC1001, IEST-G-CC1002 and other equivalent requirements
  • Filter performance : IEST-RP-CC034.1, IEST-RP-CC007.1, IEST-RP-CC001.3 and EN1822
  • Electrical safety : IEC 61010-1 / EN 61010-1 / UL 3101-1 / CSA C22.2 No. 1010.1-92
Average Airflow Velocities Inflow Initial setpoint: 0.53 m/s or 104 fpm (audible / visual alarm will activate at 0.45m/s or 90fpm)



Initial setpoint: 0.3 m/s or 60 fpm (uniformity is +/- 0.08 m/s or 16 fpm)

Airflow Volumes (At Initial Airflow Velocity Setpoints) Inflow 372 cmh / 219 cfm 490 cmh / 288 cfm 608 cmh / 358 cfm 726 cmh / 427 cfm
Downflow 560 cmh / 329 cfm 872 cmh / 513 cfm 1082 cmh / 636 cfm 1292 cmh / 760 cfm
Total Cabinet Airflow 963 cmh / 567 cfm 1270 cmh / 747 cfm 1578 cmh / 929 cfm 1885 cmh / 1109 cfm

Pressure Drop Requirements for Exhaust Ducting

580 Pa / 2.33 Inch Water

500 Pa / 2.01 Inch Water

475 Pa / 1.91 Inch Water

465 Pa / 1.87 Inch Water

Cleanliness Within Working Area

ISO14644.1 Class 3, US Federal Standard 209E Class 1 / M1.5, AS1386 Class 1.5, JIS B9920 Class 3, BS5295 Class C, Class M10,000 as per KS27030.1 and equivalent classes of VDI2083 and AFNOR X44101

Downflow Filter Type

ULPA filter with integral metal guards and filter frame gaskets; fully compliant with EN 1822 and IEST-RP-CC001.3 requirements (each cabinet has individual downflow and exhaust filters)

Exhaust Filter Type

H13 HEPA filter with integral metal guards and filter frame gaskets; fully compliant with EN 1822 and IEST-RP-CC001.3 requirements

Downflow Filter Efficiency Ratings

Minimum : 99.99962% at 0.3µm / 99.99965% at 0.12µm / 99.99946% at MPPS
Typical : 99.9999% at 0.3µm / 99.9999% at 0.12µm / 99.9999% at MPPS

Exhaust Filter Efficiency Ratings

Typical efficiency >99.99% at 0.3µm

Noise Level

<62 dBA at initial blower speed setting (according to NSF49, reading based on 4 feet model, subject to acoustic properties of test environment)

Light Intensity

>1000 Lux / >93 foot candles, measured at work surface level (zero background) as per NSF49 test grid

Main Body Construction

1.5mmt / 0.06" / 16 gauge electro-galvanised steel with white oven-baked epoxy powder-coated finish

Net Weight (Approximate)

217 kgs / 478 lbs

256 kgs / 564 lbs

672 lbs

353 kgs / 778 lbs

Max Shipping Weight

328 kgs / 723 lbs

360 kgs / 794 lbs

926 lbs

515 kgs / 1135 lbs

Maximum Power Consumption / Current

220-240VAC / 50Hz 1Ph 600W / 2.61A 614W / 2.67A 2.76A 650W / 2.83A

110-130VAC / 60Hz 1Ph

844W / 7.03A

858W / 7.15A


894W / 7.45A

Max Shipping Dimensions (L x W x H)

1350 x 1100 x 1930 mm (53.1" x 43.3" x 76.0")

1650 x 1100 x 1930 mm (65.0" x 43.3" x 76.0")

1950 x 1100 x 1930 mm (76.8" x 43.3" x 76.0")

2250 x 1100 x 1930 mm (88.6" x 43.3" x 76.0")

Max Shipping Volume

2.86 cbm / 101.0 cbf

3.50 cbm / 123.6 cbf

4.14 cbm / 146.2.1 cbf

4.78 cbm / 168.8 cbf

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Options & Accessories
Sentra Niaga Puri Indah Blok T3-10
Jakarta 11610 - Indonesia
Telp: +62 (21) 581 8000, 581 9000
Fax: +62 (21) 581 6999
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