Laboratory fume hood is a device used for exhaust ventilation in laboratories to prevent the diffusion of pollutants from experiments into the laboratory. Bo Tai editor will introduce relevant knowledge to everyone.

1、 Material selection

1. Corrosion resistance: Stainless steel, epoxy resin coated steel plates or PP materials are selected to adapt to chemical reagent corrosion and disinfection operations.

2. Load bearing and durability: The all steel material has high stability and strong load-bearing capacity, making it suitable for long-term use. PP material has outstanding acid and alkali resistance and is suitable for strong corrosive experimental environments.

2、 Specification adaptation

1. Experimental requirement matching: Large experiments can choose floor standing fume hoods, while small experiments can choose tabletop ones to save space.

2. Size range:

Width: 600-1800mm (floor standing) or 400-1200mm (tabletop). ‌

Depth: 700-1000mm (floor standing) or 500-800mm (tabletop).

Height: 1900-2400mm (floor standing) or 600-800mm (tabletop).

3、 Exhaust performance‌

1. Airflow requirement: The surface wind speed should reach 0.3-0.5m/s to ensure efficient discharge of harmful gases.

2. Intelligent control: The variable frequency fan is paired with an intelligent system to automatically adjust the air volume according to experimental needs, reducing energy consumption and noise.

3. Exhaust method: Select upper exhaust, lower exhaust, or composite exhaust method based on the characteristics of the experimental gas to avoid gas diffusion to the breathing area of personnel.

4、 Security protection

1. Basic configuration: Explosion proof glass window, emergency stop button, anti overflow design, etc.

2. Special protection: Explosion proof motors and fire-resistant materials are required when dealing with explosive gases.

5、 Operating comfort

1. Tabletop material: acid alkali resistant, high temperature resistant epoxy resin or physical and chemical board material, suitable for complex experimental scenarios.

2. Ergonomic design: adjustable height tabletop, reasonable storage space layout, and sufficient lighting to enhance operational convenience.

6、 Additional features

1. Filtering device: Efficient filters need to be installed to reduce the risk of harmful substance leakage.

2. Air supply system: saves air conditioning energy consumption and is suitable for high-frequency or long-term use scenarios. ‌