In addition to the correct design, the use effect of the laboratory air-purifying fume hood is also closely related to the rational use and maintenance.
Therefore, the following points should be paid attention to: (1) During the experiment, harmful The experimental device of the clean air fume hood should be placed in a place where the operation opening of the cabinet is larger than 150MM to prevent the overflow of harmful substances; (2) The experimental device of the clean air fume hood should not block the exhaust slit; (3) Experiment After finishing, the fan should not be turned off immediately, and it should be turned off after 3 to 5 minutes; (4) The clean air fume hood should not be used as a storage cabinet; (5) The inside of the clean air fume hood should always keep the inner surface of the cabinet smooth and clean.
If it is damaged, it must be repaired in time; (6) The ventilator, air duct and related accessories should be inspected regularly
(7) The fume hood must be measured and adjusted every once in a while; make the clean air fume hood operate under the design conditions; (8) The temperature in the clean air fume hood, such as an electric furnace with a large wattage, should be cushioned.
The backing plate should not be stored and opened for a long time, so as not to affect the use of the clean air fume hood