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Blue Pure 311i Max (3350i) Pre-Filter

Compatible with Blue Pure 311i Max

4.2
Rated 4.2 out of 5 stars
34 Reviews

Smart Filtration, you can trust

4.2
Rated 4.2 out of 5 stars
Based on 34 reviews
76%would recommend this product
Slide 1 selected
34 reviews
  • SF
    Sherry F.
    Verified Buyer
    I do not recommend this product
    Rated 1 out of 5 stars
    6 months ago
    baggy

    Does not fit as well as the one that came with the 311i Max. It is baggy at the bottom and top and looks does not fit well.

    BlueEU Staging
    6 months ago

    Thank you for sharing your feedback on the Blue Pure 311i Max Pre-Filter. We’re sorry to hear the fit is not as expected, as the pre-filter should sit smoothly around the unit. We’ve reached out to you directly using your contact information so our team can help look into this and assist further.

  • LK
    Laine K.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    8 months ago
    Pre-filter too small!

    I love that the pre-filter comes in different colors and is washable but when snagged by the cats I want to replace. Why is it whenever I buy a new one it doesn’t fit the same?

    BlueEU Staging
    7 months ago

    Thanks for the thoughtful feedback on the Blue Pure 311i Max Pre-Filter. We love hearing that you enjoy the washable colors. The fit difference you’re seeing is likely due to mixing up the Blue Pure 311i Max and the slightly taller 311i+ Max, which use different pre filters. Here's direct link to the correct replacement filter and pre-filters for your unit: https://www.blueair.com/collections/311i-max-2

  • TM
    Theresa M.
    Verified Buyer
    I do not recommend this product
    Rated 2 out of 5 stars
    Yesterday
    Customer service

    I can't seem to get anyone to be able to return and replace these items. They are not what I needed. I have a 511i not a 311i. Extremely disappointed with your company and it's lack of customer service!!

    BlueEU Staging
    3 minutes ago

    Thank you for sharing your feedback, and we sincerely apologize for the difficulty in getting in touch with our team. Receiving the wrong filter size is incredibly frustrating. We want to ensure you get the exact replacement filter for your Blue Pure 511i Max right away. Our support team will reach out to you directly via email to process a replacement exchange for the correct size.

  • JB
    James B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Very good and great color choices

    As good as the original and great colors

  • LM
    Loreen M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Blue Pure 311i Max Pre-Filter

    We live a few houses away from a very busy road and I’m certain this helps us breathe better air.

    I typically hand wash it and I’m blown away at how much filth comes out of it! Just looking at it, one would never know how dirty it really gets. I bought spares so it’s always ready .