Quality hepa filter for vacuum cleaner：Correct use and maintenance of HEPA filter for vacuum cleaner is essential to ensure its high-efficiency filtering performance and extend its service life. Here are some key steps:

Correct use

1. Confirm the needs: Select the appropriate HEPA filter for vacuum cleaner according to actual needs. For example, in places such as biosafety laboratories and hospital operating rooms that require a high cleanliness environment, H13-H14-level high-efficiency filters should be selected; while in the air-conditioning system of general commercial buildings, H10-H12-level medium-efficiency filters may be more suitable.

2. Correct installation:
- Preparation: Determine the installation location according to the design drawings to ensure that it meets the requirements of airflow direction and space layout; clean the installation area to ensure dust-free and pollution-free; prepare necessary tools such as wrenches, screwdrivers, levels, plumb bobs, etc.
- Check components: Check whether the filter packaging is intact, damaged or deformed; check whether the specifications meet the requirements; check whether the sealing ring is intact, and if it is damaged or aged, it should be replaced in time.
- Placement and Fixing: Place the filter steadily at the installation location, parallel to the wall or frame; install the fixings such as booms, frames, etc. as required, and ensure that they are firm and correct; use soapy water to check the sealing rings around to ensure that there is no leakage; use a level and plumb bob to adjust the filter to make it horizontal and vertical.
- Airflow Test: Close the front door of the filter and use an airflow detector to check the airflow velocity before and after to ensure that it meets the design requirements.

3. Standard Operation:
- Personal Protection: During operation, wear personal protective equipment such as dust masks and gloves to prevent inhalation of pollutants in the air.
- Pay attention to observation: Pay close attention to the changes in the filter pressure difference, and stop the machine for inspection in time if abnormalities are found to avoid affecting the filtering effect or causing equipment failure due to excessive pressure difference.
- Restricted Behavior: It is prohibited to pile up debris around the filter to avoid affecting the airflow; it is prohibited to clean or repair it during operation; non-professionals are not allowed to operate or change the filter settings without authorization.

### Maintenance

1. Regular inspection:
- Appearance inspection: Perform an appearance inspection of the filter every day to check for visible damage, stains or foreign matter.
- Data monitoring: Regularly record pressure difference data, filtration efficiency and other indicators to promptly detect performance degradation and other problems.
- Comprehensive inspection: Perform a comprehensive inspection every month, including filtration efficiency, pressure difference and sealing, to ensure that the filter is in good condition.

2. Cleaning and disinfection:
- Surface cleaning: Regularly use a soft brush to remove dust and impurities on the surface of the filter, but be careful to avoid excessive force to damage the filter material.
- In-situ disinfection: For HEPA filters in special equipment such as biosafety cabinets and isolators, appropriate disinfection methods can be selected according to actual conditions, such as gas local circulation disinfection method, laboratory gas overall circulation disinfection method, etc., and regular in-situ disinfection can be performed to reduce the risk of contamination.

3. Replace the filter element in time:
- Follow the time cycle: According to the use environment and frequency, replace the filter element according to the manufacturer's recommendations or the time cycle specified in the relevant standards, generally ranging from 6 months to 1 year, but the specific situation needs to be determined according to the actual situation.
- Based on performance indicators: When it is detected that the filtration efficiency has dropped significantly, the resistance has increased to a certain extent, or other abnormal conditions have occurred, the filter element should be replaced immediately even if the replacement cycle has not yet arrived.

In summary, the correct use and maintenance of HEPA filter for vacuum cleaner is the key to ensuring its efficient filtration performance and extending its service life. Through reasonable selection, correct installation, standardized operation, regular inspection, cleaning, disinfection and timely replacement of filter elements, the advantages of HEPA filter for vacuum cleaner can be fully utilized to provide a clean and safe air environment for various places.