Use of fumehoods
Guidelines
A fumehood is very energy consuming. Every hour (for 1 fumehood), an estimated 900 m³ of heated air per running metre of pull cabinet is extracted from the laboratory and discharged outside. In the newest buildings there is a heat exchanger between these, in older buildings there is not.
Therefore, respect the following guidelines:
- Do not use the fumehood as a storage area for hazardous substances or waste. There are safety cabinets or storage areas for these.
- Limit the simultaneous use of fumehood as much as possible.
- Limit the use of fumehood at very low or very high outside temperatures. If you draw cold air, you will have to heat it up and vice versa. This requires a lot of energy and also creates comfort problems in older buildings.
- Fumehood with a constant flow rate.
- Closing the sliding window has no effect. Therefore, switch off the fumehood (if possible via the on/off button) completely after use.
- Fumehood with variable flow rate.
- Closing the sash does have an effect. Keep sliding window closed as much as possible.
- Switch fumehood off completely (if possible via the on/off button) after use.
- Use the maximum setting only if really necessary.