Key features

• •Perfect Compatibility : Improvedhand 311i+ Max Filters Replacement is compatible with Blue Pure 311i Max Air Cleaner Purifier, replacement part #F3MAX. It is NOT compatible with Blue Pure 311i+ Max or 311 Auto. Please check the model number before you buy
• •Superior Filtration Systems : Improvedhand 311i+ Max Filters Replacement has 2-in-1 filtration system which includes HEPA filter and Activated Carbon filter. It takes out the airborne substance as small as 0.3 μm such as smoke and pet dander. The Activated Carbon filter absorbs household odors from smoking, cooking, and VOCs
• •Cost-Effective : With a 360-degree air intake and up to 4 times the filter surface area, the life of the filter replacement is about 6 months to a year on average.We recommend to replace the 311i Max Filters Replacement every 6 months for optimal performance when used 24 hours a day.There are 2 pack of 311i Max Filters Replacement in the package.
• •Easy Installation : Installation is easy without tools required,brings convenience and comfort to your life.You can enjoy clean air at home now without going outside
• •Shopping with Confidence : Improvedhand insist on providing the best customer service experience for all our customers. We want to provide you with an easy breathing and comfortable home environment. Any question please contact our customer service team