The clean gas Fume hood is also called tubeless Fume hood. It filters the
poisonous and harmful gases in the cabinet through the exhaust gas treatment
device (filter) installed on the upper part of the cabinet and recycles them to
the indoor space after adsorption treatment.
The clean air Fume hood is especially suitable for the experimental space
where ventilation ducts cannot be installed, which saves the inconvenience of
duct installation, but the later use cost is high.

