What are the internal cleaning methods for fume hoods

The internal cleaning methods of fume hoods mainly include the following steps:

First, preparatory work

Turn off the power: Before conducting internal cleaning, first ensure that the power of the fume hood is turned off and all connections are disconnected to prevent electric shock accidents during the cleaning process.

Personal protection: Wear appropriate personal protective equipment, such as gloves, goggles and masks, to ensure your own safety.

Prepare cleaning tools and detergents: Prepare non-woven fabrics, neutral detergents, spray bottles and other cleaning tools and materials. Avoid using acidic or alkaline cleaners to prevent damage to the materials and internal components of the fume hood.

Second, take out the items

Open the door of the fume hood and take out the stored items to better clean the interior.

Third, wipe the inner surface

Use a non-woven fabric dipped in neutral detergent to wipe the inner surfaces of the fume hood, such as the work surface, wall panels and suction devices. Be careful not to use too much water or liquid to avoid affecting the normal operation of the fume hood.

Clean the corners and crevices: Pay special attention to cleaning the corners and crevices inside the fume hood, as these areas are prone to accumulate dust and dirt.

Fourth, clean the filter

Check the cleaning cycle of the filter: According to the model and manual of the fume hood, check the cleaning cycle of the filter.

Clean or replace the filter: If the filter needs to be cleaned or replaced, follow the instructions. When cleaning or replacing the filter, appropriate personal protective equipment should also be worn.

Fifth, rinse with clean water and dry

Rinse with clean water: After cleaning the internal surface, wipe it clean again with clean water to ensure there is no residual cleaner on the surface.

Natural drying: Let the interior of the fume hood dry naturally. Avoid using hair dryers or other equipment to accelerate the drying process, as this may damage the materials and internal components of the fume hood.

Sixth, regular inspection and maintenance

Regularly check the operating status: Regularly inspect the operating status of the fume hood, such as ventilation velocity and noise. If any abnormal situation is found, contact the relevant maintenance personnel in time for inspection and repair.

Avoid damage: Fume hoods should not be used as storage cabinets. The interior should always be kept clean and airtight. If there is any damage, it must be repaired in time.

Seventh, special stain treatment

For special stains inside or outside the fume hood, such as splashes of chemical liquids, they should be immediately removed with appropriate cleaning agents and relevant safety operation procedures should be followed. Avoid using cleaning agents that may cause corrosion or damage to the materials of the fume hood.

By following the above cleaning methods, the interior of the fume hood can be effectively kept clean and hygienic, ensuring its normal operation and providing a safe experimental environment.