1. According to actual usage, the primary filter should be removed and cleaned regularly, with a cleaning cycle generally of 3-6 months. If not washed for a long time, dust accumulation will affect the insufficient air intake and reduce the cleaning effect.
2. Generally, after 18 months of use, if the operating voltage of the fan is adjusted to the highest point and the ideal wind speed cannot be achieved, it indicates that the high-efficiency air filter has accumulated too much dust (the filter holes on the filter material have been basically blocked, and should be updated in a timely manner). The service life of the high-efficiency air filter is generally 18 months.
3. When the ideal cross-sectional wind speed cannot be achieved after normal replacement or cleaning of the primary air filter, the working voltage of the fan should be adjusted (rotate the knob) to achieve the ideal uniform wind speed (when using a new workbench, adjust the working voltage of the fan to 80v~90v).
4. When replacing the high-efficiency air filter, attention should be paid to the correct model, specifications, and dimensions (configured by the original manufacturer). The device should be installed in the direction of the arrow, and attention should be paid to the surrounding sealing of the filter to ensure that there is absolutely no leakage.