1. Suction power weakens: When the suction power of a vacuum cleaner weakens significantly, this may be a sign that the filter is clogged with dust and dirt. New filters have better filtration and are able to capture dust particles more effectively, but over time, dust buildup on the filter can lead to a decrease in air ventilation and thus reduced suction power. If you feel that your vacuum cleaner is not as powerful as it used to be, it might be time to consider replacing the filter.

2. Dust escapes: When dust escapes from the suction inlet or other parts of the vacuum cleaner during use, this indicates that the filter may have been worn or damaged. For example, if you notice dust flying around the bottom or sides of your vacuum cleaner when you use it, this could be because the filter's seal is damaged. In this case, replacing the filter with a new one can effectively prevent dust leakage.

3. Visual inspection: Regular visual inspection of the filter is key to maintaining vacuum cleaner performance. Check the appearance of the filter, including any obvious tears, wear or deformation. If these problems are found, it means that the filter may have lost its original filtering effect and needs to be replaced with a new filter.

4. Usage time: The service life of the vacuum cleaner filter is usually based on the recommendations provided by the manufacturer. For example, some manufacturers recommend replacing the filter every 3 to 6 months. This is because dust on the filter gradually accumulates over time, reducing its filtration performance. Help maintain optimal performance of your vacuum cleaner by replacing the filter as recommended by the manufacturer.

5. Decreased washing effect: For washable filters, regular cleaning is the key to maintaining their performance. However, over time, the fibers of the filter may become worn, causing the filter to not be as effective as it was before. If your vacuum cleaner's performance doesn't improve significantly after you clean the filter, it may be time to replace the filter.

6. Odor generation: Since the vacuum cleaner may inhale various dirt and odorous substances during the cleaning process, the filter may gradually accumulate odors. If you feel an unpleasant odor when using the vacuum cleaner, especially after cleaning, this may be a sign that the filter has been overused. Replacing the filter with a new one can effectively eliminate the odor problem.

7.Manufacturer recommendations: Manufacturers usually provide recommendations on the frequency and method of filter replacement in the user manual or product instructions. These recommendations are based on product design and performance evaluation and are therefore important to ensure your vacuum cleaner works efficiently for a long time. Carefully reading the information provided by the manufacturer can help you understand when it is time to replace your vacuum cleaner filter.

8. Allergy symptoms: If a family member experiences worsening allergy symptoms after using the vacuum cleaner, such as shortness of breath, itchy eyes, or sneezing, this may be a sign that the vacuum cleaner filter is not working. The filter of a vacuum cleaner is mainly responsible for filtering tiny particles in the air and preventing them from entering the indoor environment. When the filter fails, allergens may be released through the vacuum cleaner, causing allergy symptoms to worsen. Replacing the filter with a new one can help improve the filtration effect of your vacuum cleaner and reduce allergy symptoms.

Vacuum Cleaner Parts