Can the filtration system of the Floor Vacuum Cleaner effectively prevent secondary pollution?

The filtration system of the Floor Vacuum Cleaner plays a decisive role in preventing secondary pollution.
The high-quality Floor Vacuum Cleaner filtration system adopts multiple filtration technologies. Common ones are primary filtration, which is generally a filter or filter cotton, which can filter out large particles of dust and debris, such as hair, debris, etc. This is the first line of defense against secondary pollution. For example, the primary filter of some vacuum cleaners can effectively intercept larger particles visible to the naked eye, reducing the burden of subsequent filtration links.
Next is the high-efficiency filter layer, such as HEPA. It can accurately filter tiny dust particles, and the filtration efficiency for particles of 0.3 microns and above can be as high as 99.97% or even higher. This means that almost all harmful dust sucked into the vacuum cleaner can be intercepted and will not be discharged into the air again, thus avoiding pollution of indoor air and harm to the human respiratory tract.
Some vacuum cleaners also use activated carbon filter layers, which can absorb odors and harmful gas molecules, such as formaldehyde and benzene. Especially when cleaning pet hair, humid environments or areas with odors, the activated carbon filter layer can effectively remove odors, make the exhausted air fresher, further improve the cleaning effect, and prevent secondary pollution caused by odors and harmful gases.
In addition, the filtration system of some high-end Floor Vacuum Cleaners also has a self-cleaning function. During the operation of the vacuum cleaner, the dust on the filter net is cleaned in time through reverse airflow or vibration, maintaining the permeability and filtration efficiency of the filter net, and avoiding the decrease in suction and secondary pollution caused by filter blockage. For example, some vacuum cleaners with cyclone separation technology can separate dust from the filter net through strong centrifugal force during the filtration process and drop it into the dust collection bucket, ensuring that the filtration system always maintains a good working condition.