Fume hoods: the core barrier for laboratory safety.
Key Technical Parameters:
Wind Speed: 0.3-0.5 m/s at the cabinet door opening; stable wind speed is required to avoid airflow turbulence.
Exhaust Volume: 1000-3000 m³/h; must be compatible with the fan and ductwork.
Material: Acid and alkali resistant PP (for chemical experiments), easy-to-clean stainless steel (for biological experiments), cost-effective cold-rolled steel plate.
Cabinet Door: Vertical lifting door is the mainstream choice; easy to operate and adjustable opening height.
Safety Devices: Includes wind speed alarm, cabinet door limit switch, explosion-proof glass, and emergency exhaust button.
· Integrated system combining water, electricity, gas, and ventilation.
· Equipped with multifunctional power sockets for convenient use of other electrical devices during laboratory operations.
· Quick-opening valves for easy water access during experiments.
· Front sash made of vertically sliding glass panel.
· Top-mounted low-speed exhaust fan to effectively remove harmful or odorous gases generated during experiments.
· Optional stainless-steel sink installed at the work surface bottom, allowing disinfectant and experimental residues to be rinsed away and safely drained, ensuring a safe and reliable laboratory environment.
Usage Guidelines and Maintenance Points
Before Use: Check the fan speed, alarm devices, and pipe sealing. After turning on the unit, wait for the airflow to stabilize (3-5 minutes) before operating.
During Operation: The cabinet door opening should not exceed 50cm. Place the equipment at the rear of the cabinet. Do not place flammable or explosive materials inside (except for explosion-proof models).
Daily Maintenance: Clean the cabinet regularly, check the fan speed weekly, clean the pipes monthly, replace the filter as needed, and conduct a comprehensive overhaul annually.
Fume hoods are core equipment for laboratory safety, and their design must balance protective performance, ease of operation, and maintenance costs. Proper use and maintenance can significantly reduce occupational exposure risks and protect personnel health and environmental safety.