In some experiments, the fume hood may be equipped with some local ventilation devices to prevent experimenters from inhaling harmful gases. By putting harmful gases generated by experiments into them to prevent gases from flowing back, the health of experimenters can be protected. So, how should it be installed?

        product classification:

        1. Range hood: simple structure, easy to manufacture, suitable for occasions with heat.

       2, slotted typeFume hood: The slotted fume hood is equipped with exhaust slots on the top and back, which can achieve good results under various working conditions. However, the structure is complex and troublesome.

        3. Bypass fume hood: When the laboratory considers a range hood to discharge indoor air, it is ideal to use this type of fume hood because indoor ventilation is not affected when the cabinet doors are closed.

      4. Natural ventilation fume hood: The advantage is that it does not consume electricity; it can breathe continuously day and night (measurable indoor air changes up to 6 times/h), which is beneficial to indoor ventilation; it has no noise and vibration; it is easy to maintain because it has no mechanical equipment; it has a simple structure and low cost. However, its use is restricted by specific conditions and is not suitable for highly harmful and non-heating experiments. Some rooms are not suitable for use in summer.