The main reason for using a fume cupboard is to provide a safe working environment for the operator and other laboratory personnel. The fume cupboard provides a mechanical means of capturing, diluting and exhausting all fumes, especially that which is hazardous or noxious.
The efficiency and safety of a fume cupboard depends upon the smooth entry of air, effective containment and scavenging of fume from the chamber, its sitting with respect to air movement and laboratory ventilation, the materials used in its construction, the complete fume exhaust system, its controls and, if fitted, cleaning system and the safe and remote dispersal of fumes to the atmosphere. Testing of fume cabinets in accordance with the standard AS/NZS 2243.8 & 9 will ensure their safety and performance as well as reduce the risk of hazards.
A fume cabinet should be tested by an accredited testing laboratory when it is installed on site. Thereafter, it should be checked and maintained at 6 monthly intervals. In addition to this testing and maintenance, there may need to be a system in place whereby the operators monitor vapour concentration in the air leaving the filter to detect saturation of the adsorption filter (recirculating). A G & G Services Pty Ltd can provide professional, on-site testing and certification services for Fume Cabinets to AS 2243.8 & 9.