● South Korea original, sales of the first brand. ● High efficiency HEPA-H12 level function, which can remove PM2.5 (0.3) up to 99.5%. ● Remove contaminated air/ultrafine dust from the space and remove 99.9% of bacteria. ● Each HEPA-H12 filter can be used for approximately 360 hours. How to use: Open the back cover of the main unit and remove the old filter and replace it with new ones. Content: HEPA-12 filter heart x1 Place of Origin: South Korea Date of manufacture: such as the outer box label Weight: 16 grams Shelf life: 5 years Note: Store the filter in a dry place and avoid exposure to sunlight.