LEV systems (Local Exhaust Ventilation systems), also known as extraction or fume control, can be very effective in controlling airborne contaminants. The following article discusses Point Extraction Ducts, LEV Enclosures and the design features and performance criteria for both of them. Point Extraction Ducts LEV Point extraction systems can...
Local Exhaust Ventilation Controls for Pharmaceutical Laboratories
General Guidance for Local Exhaust Ventilation Controls: Providing effective extraction and filtration for localized containment systems. Each laboratory should be equipped with enough fume cupboards and ventilated enclosures for the work anticipated. Fume cupboards should be connected to a high volume, low static, mechanical exhaust system. Emission control or stack...
Air Handling Recommendations for Pharmaceutical Laboratories
Air Handling Recommendations for Pharmaceutical Laboratories handling drugs category 3 & 4. HEPA filtration of exhaust air is recommended for areas handling Category 3 substances and required for areas handling Category 4 substances. The air leaving these areas must be clean and contamination-free. A minimum of 15 air changes per...
Building Design Criteria for Pharmaceutical Laboratories
Design criteria for laboratories - General Laboratory Design: Providing a basic level of safety design for the handling of Low-Intermediate toxicity compounds.In order to ensure that a potentially hazardous environment within the Laboratory does not affect areas outside the designated laboratory, a negative differential air pressure relative to the surrounding...