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Alternative SmokeBlock replacement filter

Blueair Blue Pure 311i+ Max SmokeBlock Filter 111235 replacement filter

Blue Pure 311i+ Max SmokeBlock Filter (part 111235) fits Blueair Blue Pure 311i+ Max, according to the official Blueair product page.

Official Blueair fit · checked

Blueair models that use Blue Pure 311i+ Max SmokeBlock Filter 111235

This filter is listed for one model. Open a model to see its complete list of primary, optional, and specialty filters.

Before you order

What to check in a 111235 listing

  • The listing names part 111235. Similar-looking filters are not proof of fit.
  • Your purifier is one of the compatible models: Blueair Blue Pure 311i+ Max.
  • The pack size and pieces included match what you need. Genuine and third-party filters can differ.
  • The total price with shipping, seller feedback, and delivery estimate work for you.

Care guidance

Replacement schedule

Blueair states that, depending on usage, the filter will last up to 9 months.

Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.

Compare compatible options

These share at least one compatible model but may do a different job, such as a carbon pre-filter or a specialty version. Check each part page before buying.

Frequently asked questions

How often should I replace the Blueair Blue Pure 311i+ Max SmokeBlock Filter (111235)?

Blueair states that, depending on usage, the filter will last up to 9 months.

Which Blueair models use the Blue Pure 311i+ Max SmokeBlock Filter 111235?

According to the official Blueair product page, Blue Pure 311i+ Max SmokeBlock Filter (111235) fits Blueair Blue Pure 311i+ Max. Verify the model label on your unit before ordering.

Do aftermarket 111235 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number 111235, review the listing details, and verify the model label on your unit before buying.

Official compatibility record

Manufacturer source

Official Blueair product data identifies Blue Pure 311i+ Max SmokeBlock Filter, SKU 111235, as compatible only with Blue Pure 311i+ Max.

Blueair Official Blue Pure 311i+ Max SmokeBlock Filter

Source compatibility checked 2026-08-29. Recheck the listing and your purifier label before ordering.