How often should a fume hood be cleaned?

The cleaning frequency of fume hoods should be determined according to their usage conditions. The following are some suggested cleaning frequencies:

First, daily cleaning

After each use: After each use of the fume hood, the residues and stains on the workbench should be cleaned up in time to keep the fume hood clean and tidy.

Second, regular cleaning

Weekly cleaning: If the fume hood is used frequently, it is recommended to conduct a comprehensive cleaning at least once a week, including wiping the inner and outer surfaces of the fume hood, cleaning the workbench, inspecting and cleaning the filter, etc.

Quarterly cleaning: Regardless of the frequency of use of the fume hood, it is recommended to conduct a comprehensive internal and external inspection and cleaning once every quarter. This includes checking whether the electrical system, filtration system, lighting and other components of the fume hood are working properly, as well as thoroughly cleaning the inner and outer surfaces and filters and other components of the fume hood.

Third, cleaning under special circumstances

When chemical liquids are splashed or other special stains are found inside the fume hood, immediate cleaning should be carried out to prevent damage to the fume hood or affect its laboratory functions.

Fourth, other precautions

When cleaning a fume hood, neutral cleaners and soft cloths should be used. Acidic, alkaline or strongly corrosive cleaners should be avoided to prevent damage to the materials and internal components of the fume hood.

When cleaning the fume hood, make sure the power is turned off and all connections are disconnected to avoid electric shock accidents.

Regularly inspect and replace the filter of the fume hood to ensure its filtering effect and service life.

In conclusion, the cleaning frequency of fume hoods should be determined based on their usage conditions. It is recommended that laboratory managers formulate reasonable cleaning plans based on the actual situation and regularly clean and inspect fume hoods to ensure their normal operation and extend their service life.