and high quality Made of high-quality materials, more durable The filter can reduce dust, pollen and other allergens from entering the you breathe, which is good to your health. The purifier filter is easy to install and replace, easy to use, and very convenient for your use. For better using results, the filter should be replaced every 2‑3 months, in order to provide condition. Compatible with model: Item for LEVOIT Core 300 Core 300‑RF Purifier. color:Green Material:plastic Package Contents: 1 x air filter 1 x clean brush Only the above package content, other products are not included. Note: Light shooting 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.