Why it matters
The Blueair 311 Auto Replacement Filter is a replacement filter for the Blueair Blue Pure 311 Auto Air Purifier.
Made for Blueair's 311 Auto purifiers. The model label is usually on the back or under the filter door; match it before ordering.
Most purifier HEPA filters last six to twelve months in normal use; follow the unit's filter indicator and replace sooner in smoky or pet-heavy homes.
It fits the Blueair Blue Pure 311 Auto Air Purifier, which its maker lists as rated for 388 square feet. A unit that runs on high in a large room loads its filter faster than the same unit on low in a bedroom.
Use the filter made for your exact unit: purifier filters seal against their own housing, and a close-but-different filter lets air bypass the media.
The listing gives dimensions of 14.96 inL x 13.19 inW x 2.68 inTh.
Who it's for, and who should skip it
Good fit if
- Blueair Blue Pure 311 Auto Air Purifier owners
- Keeping rated performance
Look elsewhere if
- Other purifier models
Pros and cons
Pros
- Exact-fit replacement
Cons
- Only fits its own unit family
- A recurring cost of owning the purifier
Limitations to weigh
- Specifications are the maker's or seller's own figures; check fit against your equipment's model number and the actual size.
Specifications
The bracket shows where each figure comes from.
| Model number | 109411 | Retailer |
|---|---|---|
| Dimensions (seller) | 14.96"L x 13.19"W x 2.68"Th | Retailer |
Alternatives worth comparing
More air purifier replacement filters we cover
- Flanders EZ Flow II Replacement Filter
- AirDoctor AD3000 Replacement Filter
- Molekule Air Mini / Mini+ PECO-HEPA Tri-Power Filter $99.99
- Breathe Naturally Replacement Filter for Honeywell HPA300
- Fette Filter Replacement Filter for Dyson HP04
All air purifier replacement filters, compared in one table · Every Blueair product we cover
Final verdict
A practical choice for blueair Blue Pure 311 Auto Air Purifier owners. Confirm the model it fits before ordering.
Where to buy
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