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Types of Laboratory Hoods and Specific Uses. Horizontal Laminar Flow Cabinets. SHC-A. AHC-A. Vertical Laminar Flow Cabinets. SCV-A. AVC-A. Class II Type A2 Biosafety Cabinets. AC2-E. LA2-A. AC2-S. Class II Type B2 Biosafety Cabinets. AB2-S. LB2-B. Laminar Flow Cabinets.
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Horizontal Laminar Flow Cabinets SHC-A AHC-A
Vertical Laminar Flow Cabinets SCV-A AVC-A
Class II Type A2 Biosafety Cabinets AC2-E LA2-A AC2-S
Class II Type B2 Biosafety Cabinets AB2-S LB2-B
Airstream Horizontal D Series AHC-D • Digital display • Airflow alarm system • Isocide • Spillage Retaining Work Surface • Sloped Front • Glass Sides
Airstream Vertical D Series NEW AVC-D • Digital display • Airflow • Isocide • Spillage Retaining Work Surface • Sloped Front • Glass Sides
Different Types of BSCs • Class II Type A2 - Re-circulating air - No ducting needed - Alternative Thimble Ducting • Class II Type B2 - Total exhaust (100%) - Ducting required - Suitable for fumes
Labculture Plus S Series LP2-S • Reduced height, depth • Low Noise Level • Motor Voltage Stabilizer - Accuflow • Motorized window standard • Multiple work tray • Large LCD screen • 3 degree Sloped Front • Western European style
Viva® Dual Access Animal Containment Workstation VDA • Only for cage changing • Available in 4ft size • Pharmaceutical • Universities • Research Institutes • Animal Breeding Centers
Viva® Universal Workstation • VA2 • Class II airflow: product and user protection • Optional height-adjustable stand • General animal procedures especially those requiring biohazard protection
Viva® Bedding Disposal Workstation VBD • Only for bedding disposal • Motorized stand standard • Rubbish Bin • Pre Filter • Carbon Filter • Operator protection only
Hospital Pharmacy Isolator – Positive Pressure NEW HPI-P • USP797 compliant • Product protection • Neoprene gloves • Stainless Steel Interior • Easy to clean • Sloped front
Hospital Pharmacy Isolator – Positive Pressure NEW HPI-P • Airlock pass through • Optional motorized stand available • Built-in Sharps disposal containers upgrade
Hospital Pharmacy Isolator – Seminar • Venue: Esco Singapore Headquarters 21, Changi South Street 1 Singapore 486777 • Date: 25th September 2008 • Time: 2.30pm-5.30pm All are invited.
Cabinets for Chemotheraphy Drug HandlingHospital Pharmacy Isolators – Negative Pressure Cytotoxic Safety CabinetsClass II Type B2 Cabinets
Cabinets for Chemotheraphy Drug Handling LB2-B CYT-A HPI-N
- Primary control device for protection of lab personnel from exposure to toxic chemicals - Partially enclosed workspace that is exhausted to the outside of the building - Suctions relatively high air flow through the front opening and exhausting hazardous pollutants out of the laboratory, where it will be infinitely diluted in the atmosphere What are Fume Hoods?
Basic Features 1.Bypass 2. Baffles 3. Sash 4. Airfoil
Basic Features Bypass – Openings on the hood body above the sash. As the sash is lowered, the openings are gradually opened such that there is inflow of air to compensate for the shrinking of the sash opening. Baffles -- Partitions used to create slotted openings along the back of the hood body. Baffles keep the airflow uniform across the hood opening, thus eliminating dead spots and optimizing capture efficiency.
Basic Features Sash - The sliding “door” to the hood. The sash should be held in a low position (around 20 inches) when working in the hood and closed completely when the hood is not in use. - The sash may be temporarily raised above this position to set up equipment, but must be returned to the optimum sash height setting prior to generating contaminants inside the hood.
Basic Features Airfoil - Located along the bottom and side edges the airfoil streamlines airflow into the hood - Prevents creation of turbulent eddies that can carry vapors out of the hood - Space below the bottom airfoil provides source of room air for the hood to exhaust when the sash is fully closed
Design Styles Constant Volume Bypass System - Volume of airflow into hood remains more or less constant. As the sash is closed the airflow velocity into the hood increases. - Air bypass incorporated above sash provides additional source of room air, reducing the rate of increase of face velocity as sash is lowered.
Design Styles Variable Air Volume Hoods - Most sophisticated of the hood types, requiring technically proficient design, installation and maintenance - Maintains a constant face velocity as sash height changes, safe and energy-efficient - Tracks the makeup air to the total exhaust by means of multiple dampers
Safety Essentials Safety Essentials • Fume hood is not a storage! • Always keep fume hood clean and clear. • Action must be taken immediately if spillage happen.
Safety Essentials Safety Essentials • Raise bulky equipment 1-2 inch off the work surface. • Place bulky equipment towards the rear of hood and away from the side walls.
Safety Essentials Safety Essentials • Keep sash as low as possible when conducting experiment. • Do not block the airfoil. • Reduce pedestrian traffic in front of the hood • Minimize rapid movement in front of hood. • Always keep laboratory windows and doors closed.
Safety Essentials Safety Essentials • Do not use a hood for any function for which it was not intended. • Certain chemicals or reactions require specially constructed hoods. • Perchloric acid hoods shall be made of stainless steel and equipped with a wash down system. • Polycarbonate sash shall be applied when using hydrofluoric acid. • Work involving harmful micro-organisms should be done in a biosafety cabinet, rather than a chemical fume hood. • Close the sash when finished hood work or leaving experiments or chemicals unattended.
