Are there any signs or conditions in your fume hood?
 

• The opening and closing of the front sash is heavier than usual.

 
The following accidents have occurred as a result of not taking precautions and leaving it alone.
 
『When trying to open the front door of the hood, the wire which hung the front door tears and falls.
Because it was a low fall, there was no one injured.』
 
The probability of this accident, which would have resulted in serious injury if the experimenter had been using the hood, can be reduced by taking the following steps.