How To Clean Surface Dust From The F6 Medium-Efficiency Bag Filter During Daily Use?
Dry and gentle cleaning is the core principle for routine dust maintenance of the F6 Medium-Efficiency Bag Filter to avoid damaging the filter bag fabric. The entire cleaning process consists of three sequential steps: pre-cleaning shutdown preparation, dust removal operation and post-cleaning inspection, applicable to typical settings such as shopping malls, factory workshops and fresh-air systems in office buildings.
Before cleaning begins, cut off the power supply to the entire fresh-air or air-conditioning unit. Under no circumstances should cleaning be carried out while the fan is in operation. After power shutdown, leave the equipment idle for a period to allow suspended dust inside the air ducts to settle naturally. This prevents airborne dust from spreading during cleaning and causing secondary dust accumulation inside ductwork. Open the service access panel for the F6 Medium-Efficiency Bag Filter slowly to prevent bumping or pulling the edges of filter bags. Constructed from soft fibrous materials, filter bags easily deform upon impact, which will impair subsequent air supply performance. Inspect the overall condition of the filter beforehand: only loose surface dust needs treatment, whereas caked and firmly bonded contaminants are not to be deeply cleaned.
For practical dust extraction, a small household or industrial low-pressure vacuum cleaner equipped with a soft brush head is recommended. Move the nozzle slowly along the grain of the filter fabric, cleaning each filter bag section by section from top to bottom. Avoid prolonged suction on any single spot. Never beat the filter with rods or shake filter bags violently, as external vibration will disrupt the internal fiber arrangement and shorten service life. If vacuum tools are unavailable on site, blow away loose dust with natural wind in an open, well-ventilated space. Close-range high-pressure air blasting via an air compressor is strictly prohibited, since intense airflow can rupture the filter layer.
One vital rule for maintaining the F6 Medium-Efficiency Bag Filter is to never wash it with water. When exposed to moisture, dust adheres firmly to the filter fabric and forms hardened clumps after drying, clogging most micropores, hindering air circulation and resulting in poor fan ventilation. For stubborn attachments caused by oil stains or condensed water vapor, replace the filter when its service life expires if dry cleaning proves ineffective, rather than risking damage through forced scrubbing or water washing.
Once dust cleaning is completed, clear scattered dust around the maintenance area and reinstall the filter into its original position. Make sure all filter bags lie flat without tilting or extrusion before closing the access cover. Do not switch the unit on immediately; allow a resting period of 10 to 20 minutes so fine dust stirred up during cleaning can settle back onto the filter surface. After restarting the unit, briefly check the airflow to ensure smooth air output.
From a maintenance standpoint, regular superficial cleaning slows filter clogging and avoids restricted airflow stemming from excessive dust buildup. Adjust cleaning frequency based on ambient dust levels: extend cleaning intervals for low-dust office environments and increase regular cleaning cycles for dust-intensive production ventilation locations. Scientific and periodic maintenance maximizes the filter's overall operational performance.
