[PRODUCT SPECIFICATIONS ]: This high-efficiency Core 300 Air filter alternative seize 99% of airborne debris and odors, large for families with pets, cooking and smokers. With cost-effective charge to avoid wasting plenty cost on your all 12 months around air cleaning need. It is advised to switch filters for each 6-8 months. [REPLACEMENT PART No.]: Core three hundred Air Filters well matched for LEVOIT Core 300 purifier and Core P350 air purifier, part quantity Core 300-RF & Core P350-RF is suggested to exchange filters for every 6-8 months. [QUALITY]: Air Purifier replacement filters improve your air quality & neutralize odors for a clean & healthful breathing ride yr around with substitute filters for air cleaners & purifiers best functionality use totally Replacement filters. Each air purifier's performance is examined as a formulas with the filters for ultimate efficiency. Colour:white Material:plastic Size:193 x 150mm Package Contents: 1 x air purifiers filter 1 x brush Only the above package content, diversified products aren't included. Note: Light shooting and diverse displays could cause the color of the item within the photograph somewhat diverse from the real thing. The length allowed error is +/- 1-3cm.