Geek Aire True HEPA Filter Tower 3-in-1 Air Purifier This 3-in-1 air purifier features dual-care air cleaning technology to improve air quality in any room. The HEPA filter captures 99.99% of airborne pollutants, pet dander and allergens as small as 0.3 microns. And the carbon pre-filter acts as the first filtration to absorb odors and capture larger particles before reaching the HEPA filter. What You Get Air purifier True HEPA filter Instructions Manufacturer's 1-year limited warranty Good to Know Product does not require any assembly. But customer needs to remove the plastic bag of the filter and install the filter back to the air purifier before using.