Laboratory fume hood variable air volume ventilation system is a ventilation system used in laboratory fume hoods, and its air volume can be adjusted according to actual needs.

Features and benefits of laboratory fume hood variable air volume ventilation systems include:

• Flexibility: The air volume of the fume hood can be flexibly adjusted according to different experimental operations and the generation of harmful substances to improve the ventilation effect.

• Energy saving: avoid unnecessary air consumption and reduce energy waste.

• Precise control: Achieve precise control of the environment inside the fume hood and ensure the safety of experimental personnel.

• Improve efficiency: Provide better working conditions for experimental personnel and improve work efficiency.

• Stability: Maintain stable operation of the system and reduce the incidence of failures.

Its working principle is usually to monitor the conditions inside the fume hood through sensors, such as wind speed, wind pressure, etc., and then automatically adjust the fan speed or the opening of the air volume control valve according to the set parameters to achieve changes in air volume.

When designing and installing a laboratory fume hood variable air volume ventilation system, the following factors need to be considered:

1. Laboratory layout and space size.

2. Number and type of fume hoods.

3. The nature and amount of harmful substances produced.

4. Ventilation system air volume, wind pressure and other parameters.

5. Control system stability and reliability.