Blueair Replacement Filters: How to Find the Right One
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Blueair built its name on quiet, simple air purifiers, especially the Blue Pure line, which pairs a fabric pre-filter with a pleated particle filter and a carbon layer for smells. The catch for owners is that every Blue Pure model takes its own filter shape, so the right air filter for a Blueair machine depends entirely on the model number printed on the unit. Buy the wrong one and it simply will not slide in.
These six listings differ in one simple way: one is a complete Blue Pure 511 purifier, three are genuine Blueair replacement filters for the 211+, 411 series and 211i Max, and two are third-party two-packs sold for the Blue Pure Mini Max, made by other companies rather than Blueair.
Blueair Air Purifier Filters Compared
| Listing | What it is | Fits (per listing) | Made by | Pack size |
|---|---|---|---|---|
| Blue Pure 511 | Complete air purifier | Not applicable | Blueair | 1 purifier |
| Genuine 211+ filter | Particle + carbon filter | Blue Pure 211+ (non-auto) | Blueair | 1 |
| Mini Max filter (isinlive) | Main + carbon filter | Blue Pure Mini Max only | isinlive | 2 |
| Genuine 411 Series filter | Particle + carbon filter | 411, 411+, 411 Auto | Blueair | 1 |
| Genuine 211i Max filter | HEPASilent + carbon filter | Blue Pure 211i Max only | Blueair | 1 |
| Mini Max filter (WILERDA) | Particle + carbon filter | Blue Pure Mini Max only | WILERDA | 2 |
BLUEAIR Air Purifiers for Home Bedroom (Blue Pure 511) for Small Rooms
Blueair
BLUEAIR Air Purifiers for Home Bedroom Dorm Office up to 907 Ft², Blue 511
Price and specifications are read from the Amazon product page and can change.
BLUEAIR Air Purifiers for Home Bedroom
Best for: Bedrooms and home offices needing a purifier
Pros
- Compact 7.9 x 7.9 inch footprint
- HEPASilent technology
- Plug-and-play setup
- Low noise design
Cons
- Listing silent on its filter model
The first listing is not a filter at all. The BLUEAIR Air Purifiers for Home Bedroom listing is the Blue Pure 511 air purifier, which Blueair calls its most compact model. It measures 7.9 x 7.9 x 13.9 inches and weighs 5.24 pounds, so it fits on a nightstand or desk. The title mentions rooms up to 907 square feet, while the description says it cleans a 432 sq ft space in 30 minutes or a 180 sq ft room in about 12.5 minutes on its highest fan speed.
It uses what Blueair calls HEPASilent technology, a mix of mechanical and electrostatic filtration meant to clean quickly with less noise. The description also mentions CADR, which stands for Clean Air Delivery Rate, a standard number showing how much filtered air a purifier puts out. The listing does not say which replacement filter the 511 uses, so check the filter code in the manual or on the unit before ordering spares.
This is the pick if you are shopping for someone who does not own a purifier yet, like a student heading to a dorm. If they already own a Blueair, one of the filters below is the more useful gift.
BLUEAIR Genuine 211+ Air Purifier Replacement for Blue Pure 211+ Owners
Blueair
BLUEAIR Genuine 211+ Air Purifier Replacement Filter, Everday
Price and specifications are read from the Amazon product page and can change.
BLUEAIR Genuine 211+ Air Purifier Replacement
Best for: Blue Pure 211+ non-auto owners
Pros
- Genuine Blueair part
- Particle plus activated carbon
- Captures down to 0.1 microns
Cons
- Listing mixes new and refurbished wording
- Not for auto models per listing
The BLUEAIR Genuine 211+ Air Purifier Replacement is the genuine Blueair filter for Blue Pure 211+ purifiers, and the description says specifically the non-auto models. It combines a particle filter that captures contaminants down to 0.1 microns with activated carbon for odors. The description names pollen, pet dander, dust, bacteria, mold spores and viruses as targets.
The listing has a contradiction you should know about. Its feature bullet is boilerplate about a refurbished product that may arrive in a generic box, but the specifications say the grade is new. A filter is a consumable part, so read the seller details carefully and make sure you are buying a new one. The listed size is 20.35 x 2.76 x 11.69 inches, model number 109413.
Choose this if the purifier label reads Blue Pure 211+. If it says 211i Max or 211+ Auto, keep reading, because those use different filters.
Mini Max Replacement Filter for Blueair (isinlive) for Budget Spares
Best for: Mini Max owners stocking up
Pros
- 2-pack
- Tool-free install
- Activated carbon layer
Cons
- Third-party, not made by Blueair
- Mini Max only
Isinlive
Mini Max Replacement Filter for Blueair Blue Pure Mini Max Air Purifiers
Price and specifications are read from the Amazon product page and can change.
Mini Max Replacement Filter for Blueair
Best for: Mini Max owners wanting a spare
Pros
- 2-pack
- Main filter plus carbon layer
- MERV 13 listed
Cons
- Third-party, not made by Blueair
- Fits Mini Max only
The Mini Max Replacement Filter for Blueair is made by isinlive, not by Blueair. That is what the “for Blueair” in the title means: it is a compatible third-party filter built to fit, not an official part. The listing says it only fits the Blue Pure Mini Max and no other Blueair model.
Each filter combines a main filter layer with an activated carbon layer for household smells from cooking, smoking and pets. The listing gives a MERV 13 rating, a pleated construction and a size of 8.9 x 8.9 x 5.9 inches, and you get two filters in the pack. MERV is a scale for how well a filter catches particles; higher numbers catch smaller ones. The listing recommends replacing each filter every six months depending on usage.
This suits a Mini Max owner who wants a spare on the shelf. If you want the peace of mind of an official part, note that none of the six listings here is a genuine Blueair Mini Max filter.
BLUEAIR Genuine 411 Series Air Purifier for 411 Models
Blueair
BLUEAIR Genuine 411 Series Air Purifier Replacement Filter, Everyday
Price and specifications are read from the Amazon product page and can change.
BLUEAIR Genuine 411 Series Air Purifier
Best for: Blue Pure 411, 411+ and 411 Auto
Pros
- Genuine Blueair part
- Carbon mesh for odors and VOCs
- 360-degree intake
Cons
- Product grade listed as Like new
The BLUEAIR Genuine 411 Series Air Purifier filter is the genuine replacement for the Blue Pure 411, 411+ and 411 Auto. According to the description, it uses an activated carbon mesh layer to reduce gaseous pollutants such as VOCs (volatile organic compounds, the chemical smells from paint or cleaners) and tobacco smoke, and polypropylene media that removes particles down to 0.1 micron.
The description also mentions a 360-degree air intake and claims up to four times the filter surface area of competing filters. It measures 8 x 1.9 x 11.1 inches, model number 100929. One detail to double-check: the spec table lists the product grade as “Like new,” which is unusual for a filter, so confirm the condition with the seller.
This is the right filter if the purifier says 411, 411+ or 411 Auto. For other models, see the matching sections here, and our broader Blueair filter guide covers more of the range.
BLUEAIR Genuine Blue Pure 211i Max for the Newest 211 Model
Best for: Blue Pure 211i Max owners
Pros
- Genuine F2MAX filter
- HEPASilent dual filtration
- Integrated activated carbon
Cons
- Not compatible with 211+ or 211+ Auto
The BLUEAIR Genuine Blue Pure 211i Max filter, also called F2MAX, is made only for the Blue Pure 211i Max. The listing warns clearly that it is not compatible with the 211+ or 211+ Auto, which is the most common mix-up in this lineup since the names look so similar.
The description says it uses HEPASilent dual filtration, combining mechanical and electrostatic filtration, and removes at least 99.97% of particles down to 0.1 microns, including smoke, pet dander, pollen and dust. It also has an integrated activated carbon component for odors. It slides in, is rectangular and pleated, and the listing gives a length of 12.01 inches and a weight of 2 pounds.
Buy this only for a 211i Max. If you have an older 211+, the genuine 211+ filter above is the one you need.
Mini Max Replacement Filter for BLUEAIR (WILERDA) for Tool-Free Swaps
The Mini Max Replacement Filter for BLUEAIR is a WILERDA product, again a third-party filter rather than a Blueair one. The listing calls it the FMINI type and states it fits the Blue Pure Mini Max only, not the 211+, 211+ Auto, 211i Max, 411i Max, 511 or other models.
WILERDA claims it catches 99.97% of airborne particles down to 0.3 microns and uses activated carbon for light household odors. It comes as a two-pack weighing 6.4 ounces, installs without tools, and the listing suggests replacing it every six months. Note that the listing does not give dimensions, while the isinlive pack does.
It suits the same Mini Max owner as the isinlive option. Between the two, the listings are close; isinlive lists a MERV rating and dimensions, and WILERDA lists a particle-size claim.
How to Choose the Right Blueair Air Purifier Filter
Start with the model number. Look at the label on the bottom or back of the purifier. The 211+, 211i Max, 411 series and Mini Max all use different filters, and none of these filters crosses over.
Genuine vs compatible. Genuine filters are made by Blueair and match the machine’s design exactly. Compatible filters, like the isinlive and WILERDA packs, are made by other companies to fit; they usually come in multi-packs but their performance claims come from those sellers, not Blueair.
Check the condition. Two genuine listings here carry odd condition wording (refurbished boilerplate and “Like new”). For a part that traps dust, insist on new.
Plan replacements. The third-party listings suggest changing filters about every six months. Buying a two-pack or a spare means you are never caught short. If you are comparing other purifier styles, our look at a compact desktop air purifier shows another option.
FAQ
Which Blueair filter do I need?
Match the model name on your purifier: Blue Pure 211+ takes the genuine 211+ filter, 211i Max takes the F2MAX filter, 411, 411+ and 411 Auto take the 411 Series filter, and the Mini Max takes an FMINI-type filter.
Does the 211i Max filter fit the 211+?
No. The listing states the 211i Max filter is not compatible with the 211+ or 211+ Auto.
Are third-party Mini Max filters made by Blueair?
No. The isinlive and WILERDA filters are made by those companies and sold as compatible with the Blue Pure Mini Max.
What filter does the Blue Pure 511 use?
The listing for the 511 purifier does not specify its replacement filter, so check the manual or the label inside the unit.
How often should I change a Blueair filter?
The third-party Mini Max listings suggest about every six months depending on usage. The genuine filter listings here do not specify an interval.
