PERFECT FIT - HSP002 filter compatible with Hathaspace HSP002 Smart True HEPA Air Purifier 2.0 4 STAGE FILTRATION SYSTEM - HSP002 filters are made of 4-in-1 filtration systems including a Polypropylene Pre-Filter, H13 True HEPA Filter, Activated Carbon Filter, and a Cold Catalyst Filter H13 TRUE HEPA FILTER - HSP002 replacement filter help capture up to 99.97% of airborne particles as small as 0.3 microns & help remove particles like pet dander, pollen, dust, mite debris& smoke HIGH EFFICIENCY - Pre-Filter traps large particles in the air like hair, pet fur, pet dander and more. The premium activated carbon filters can efficiently absorb terrible odors including Pet odors, Bad Smells, Smoke odors, Cooking odors, Harmful VOC's PRODUCT SPECIFICATION - Product Size:18.98 x 14.33 x 2.46 inches. The package includes 2 * HSP002 air filters. Recommended to replace every 6 months for optimal performance.