Quick verdict
The genuine combined particle-and-carbon filter for the Blue Pure 211+. Blueair's indicator turns red at roughly six months, and because the 211+ uses one big filter, this is the single consumable — budget around $105 a year at two changes. The washable fabric pre-filter sleeve is separate and just gets rinsed.
Ideal for
Not ideal for
The full picture
The genuine combined particle-and-carbon filter for the Blue Pure 211+. Blueair's indicator turns red at roughly six months, and because the 211+ uses one big filter, this is the single consumable — budget around $105 a year at two changes. The washable fabric pre-filter sleeve is separate and just gets rinsed.
Blueair Blue Pure 211+ Particle + Carbon Filter at a glance
- Fits models
- Blueair Blue Pure 211+
- Filter type
- Particle + activated carbon (combined)
- Pack size
- 1-pack
- Filter life (months)
- 6
- Genuine / compatible
- Genuine OEM (compatible options exist)
- Notable feature
- Pair with the washable fabric pre-filter sleeve
Source: Fitment and filter details compiled from manufacturer listings and matched to our verified purifier data. Research-based; not hands-on tested. Confirm the exact model/part number for your unit before buying.
This is a research-based review — our analysis draws on manufacturer specifications, manuals, warranty terms, and verified owner feedback rather than our own hands-on testing, and we note where a detail couldn't be confirmed. How we review
Pros and cons
What works
- Correct fit for the 211+
- Combined particle + carbon
- Simple single-filter swap
What doesn't
- ~6-month life means ~$105/yr
- Pricier per year than some rivals
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