Filters Diameter: 162 mm, height: 122 mm, only applies to the replacement filter of the air purifier and the air purifier of the same size. Preliminary Filter - Helps neutralize bacteria in the air, pet hair, mold and fungus. It is the first line of defense to purify the air. True HEPA Filter - TOPG-H12, efficient filtration of 0.3 m particles, capturing dust mites, large particles and pollen. No ozone, suitable for people with respiratory sensitivity. Activated Carbon Filter - Neutralizes various household odors such as pet odors and cigarette smoke. Cleaning and Replacement - It will be cleaned every two weeks with a portable vacuum to prolong its life. Warning: do not wash the product but change it every 3 or 6 months depending on the duration of use and the air quality. The replacement filter uses primary filtration, HEPA, activated carbon filtration, and the filtration effect reaches 99.98%. Pay attention: 1, Do not store or use in environments with high temperature (above 60 C), low (-18 C or below) and high humidity (100 UR or above). 2, Do not get wet in the rain. 3, do not apply excessive force to deform the packaging. 4, avoid falling and impact. 5, kept away from direct sunlight and moisture. 6, Keep it away from odorous objects and oxidizing gases, and do not store it for a long time in a place with an unpleasant odor. 7, can be stored for 12 months in airtight packaging. Package content: 1 * high efficiency filter 1 * user manual