The CRABTEK Air Purifier removes pollutants such as particulate matter, gas pollutants and micro organisms in the air. Filtering mainly dust particles above 5 microns, including large particles of dust, dander, pollen, floating matter, and other pollutants. It also contains an activated carbon filter screen that is good for absorption and dust collection, good moldability, high strength, and low airflow resistance. It is also good for absorbing harmful gases such as benzene, toluene, xylene, formaldehyde, and ammonia.