Blue Pure 311 AUTO Filter Replacement for Blue Pure 311 AUTO Air Puri-fier, H13 True HEPA Filter and Activated Carbon Filter

DUAL-LAYER FILTRATION -- Under H13 standard, blue pure 311 filter replacement for blueair air purifier use 2-IN-1 filter design: ① H13 true HEPA filter ② activated carbon filter to achieve 99.99% trap dust, cooking smell, smoke, VOC and any other dirt as small as 0.1 microns
VALUABLE PACKAGE -- Package include: 2 pack blue pure 311 filter. Product dimension: 10.2 in × 12.8 in. It is recommend to replace new blue pure 311 filter every 6-8 months, depending on your usage and air environment
PREMIUM CRAFT -- Improvedhand blue pure 311 filter replacement for blueair is made of premium HEPA 13 / MERV 17 material and use closer fold design with low power technology to achieve up to 4 times the filtration surface area and effect, committed to keep the air quality of every home
COMPATIBLE MODELS -- Improvedhand air purifier filter replacement is widely compatible for blueair blue pure 311 air purifier. Please Note: The brand is only used for showing compatibility, NOT OEM
AFTER-SALE GUARANTEE -- Improvedhand offers the durability you need at a fraction of the cost that other alternatives does as our goal is to make replacing parts more affordable to help you save money! Any reason of quality or compatibility within 60 days, please feel free to contact us, we commit to provide excellent after-sale guarantee by exchange and refund

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