Labculture® Class II Type A2 Biosafety Cabinet
  Containment and Protection
  Cabinet Airflow
  Sentinel Microprocessor Control
  Cabinet Construction
  Engineering Details
  Technical Specifications
  Purchase Specifications
Labculture® Class II Type B2 Biosafety Cabinet
  Containment and Protection
  Cabinet Airflow
  Sentinel Microprocessor Control
  Cabinet Construction
  Engineering Details
  Technical Specifications
  Purchase Specification
 
Working Safely In Your Biological Safety Cabinet
Free Posters Available from Esco Biotech
Biohazard Safety Cabinet Classess
A Guide to Biosafety And Biological Safety Cabinets
Comparative Study of Cabinets
Comprehensive Performance Testing at Esco
 

North America
Esco Technologies, Inc.
2940 Turnpike Drive,
Units 15-16,
Hatboro, PA 19040, USA

Toll-Free: 1-877-479-3726
Phone: 215-441-9661
Fax: 215-441-9660
usa@escoglobal.com


Asia-Pacific
Esco Micro Pte Ltd
21 Changi South Street 1
Singapore 486777

Tel: +65 6542 0833
Fax: +65 6542 6920
mail@escoglobal.com

     
 
  • The total exhaust design of the LB2 makes the cabinet suitable for microbiological work involving trace amounts of toxic chemicals.
  • The non-recirculating design guarantees safety in cases where exhaust HEPAfiltration fails to ensure containment.
  • Inflow of room air enters the front air grille to establish operator protection; room air does not enter the work zone, preventing product contamination.
    The front grille has proportionally larger perforation on the extreme left and right side. Combined with the side air gap between the work tray and the side wall, the stronger side capture zones increase protection in this critical area where contaminants tend to bleed out in conventional cabinet.

  • The inflow grille has a convex shape to maintain operator protection by discouraging users from placing objects on it.
  • Raised armrest prevents the likelihood of inflow grille blocking by operator’s arms.
  • Auto-purge holes located at the front side walls eliminate eddy currents and dead air pockets in the critical area behind the sash window. Per NSF / ANSI 49 requirement, these side perforations do not extend completely to the work surface to prevent accidental liquid spills in the work zone from entering the side air column.
  • The ULPA downflow (supply) filter is tilted proportional to the cabinet front angle to direct more air forward to the front air grille.
  • The inflow velocity, downflow velocity, and air flow path, and intake geometry are precision tuned and tested to create an optimum air curtain on the front aperture; this curtain maintains personal and product protection even in the unlikely event of a severe inflow or downflow imbalance that would compromise protection in a conventional cabinet.
  
     
  A combination of a supply ULPA filter and an exhaust HEPA filter give the Labculture cabinet a fully integrated performance envelope for product, operator and environmental protection.
  • ULPA supply filter (per IEST-RPCC001.3), is tested to a typical efficiency of >99.999% for 0.1 to 0.3 micron particles; providing better filtration capability than conventional HEPA filters that have a typical efficiency of > 99.99% for 0.3 micron particles.

    Esco cabinets use ULPA filters (per IEST-RP-CC001.3) instead of conventional HEPA filters commonly found in biological safety cabinets. While HEPA filters offer 99.99% typical efficiency at 0.3 micron level, ULPA filters provide 99.999% typical efficiency for particle sizes of 0.1 to 0.3 micron level.

  • HEPA exhaust filter (per IEST-RPCC001.3), is tested to a typical efficiency of >99.99% for 0.3 micron particles. Modern separator-less mini-pleat filter construction maximizes the filter surface area to extend filter life and eliminate possible filter media damage by thin and sharp aluminum separators used in conventional HEPA filter construction.
    		•

    Esco cabinets use Swedish Camfil Farr® mini-pleat
    filters without aluminum separators to increase filter
    efficiency, minimize the chance of leakage, and to
    prolong filter life. Filters include a lightweight
    aluminum frame for structural stability and
    elimination of swelling common to conventional
    wood frames.
  • The filter frame and media is constructed in accordance with EN1822 requirements for fire retardant properties.
  • The supply ULPA filter provides ISO Class 3 (per ISO14644.1) clean air to the work surface in a gentle vertical laminar flow for product protection.
  • The exhaust HEPA filter traps biohazard particles acquired from the work surface before air is exhausted via the ducting system to the external environment. The Model LB2 is provided with an integral exhaust collar for connecting the cabinet exhaust to an airtight ducting system. NB: Ductworks are not provided with standard product.