The replacement cycle of air filter cotton needs to be judged according to the actual situation.In ordinary environments, it is generally recommended to replace filter cotton every 3 months.However, if there are many cases such as dust, pollen and other particles around your family or office environment, such as high pollution environment, then the replacement cycle should be relatively short.In addition, the use time is an important factor affecting the filter cotton replacement cycle.If your air filter has been used for a long time, the replacement cycle of the filter cotton should also be shortened accordingly.When found that the filter cotton becomes gray, the filtering effect decreases significantly, or it has been used for more than 3 months, the filter cotton should be considered.Finally, if the air filter cotton is turbid during use, it can be cleaned with a vacuum cleaner or broom to ensure that the filter cotton is not damaged, and it can be continued.However, when cleaning and filter cotton, do not use detergent or other chemicals to avoid affecting the filtering effect.In general, the replacement cycle of air filter cotton depends on air pollution and frequency of use, so it is necessary to perform flexibly according to the actual situation.Regular replacement of filter cotton can ensure the cleaning and health of indoor air, creating a healthier job and living environment for people.