[Wide Compatibility]Compatible with Air purifier Core 300 and Core P350; Replacement part # Core 300-RF and Core p350-RF; The premium filter replacement kit is perfectly compatible for air purifier. [True HEPA Filter and activated carbon filter]Premium filter removes 99.97% of dust, pollen, smoke, odor, pet dander, and more. Maximum protection of allergic people and rhinitis patients. Let you from a peculiar smell. Give you and your family fresh and pleasant air to the greatest extent. [Absorb Pollutant Particles]The filter can absorb pollutant particles as small as 0.1 Micrometres, further improving the air quality in your home. Keep you and your family away from air pollution and give you the highest quality of life. Let you be bathed in air all the time. [Easy to install and easy to use]Replacing the filter every six months can keep your air purifier at its best performance and extend its service life. Make your air purifier get the best protection. color:As shown Material:plastic Package Contents: 2 x filter elements Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.