Why it matters
The Blueair Protect 7400 Series SmartFilter is a maker-original filter.
Made for Blueair's Protect 7400 Series purifiers. The model label is usually on the back or under the filter door; match it before ordering.
Replacement interval, per the maker: every 9 months. Smoke, pets and heavy use shorten that; a filter that looks gray on the intake side is due.
This is the particle stage: the pleated HEPA or HEPA-type media catches dust, pollen, dander and smoke particles, and it gets better at catching them as it loads, until the airflow drops. When the intake side turns gray or the fan sounds strained on its usual setting, it's due.
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.
Compared with the Blueair Blue Pure 511 Particle + Carbon Filter: replacement interval every 9 months here vs every 6 months.
Who it's for, and who should skip it
Good fit if
- Blueair Protect 7400 Series owners
- Keeping rated performance
Look elsewhere if
- Other purifier models
Pros and cons
Pros
- Life: every 9 months
- Maker-original part
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.
| Price | $89.99 | Maker |
|---|---|---|
| Replacement interval | every 9 months | Maker |
Alternatives worth comparing
More air purifier replacement filters we cover
- Levoit Core 400S Replacement Filter
- PUREBURG Replacement Filter for Honeywell 10500
- Filter-Monster Replacement Filter for IQAir HealthPro Series
- Levoit Core 300-P Air Purifier 3-Stage Toxin Absorber Filter $35.99
- Levoit Eleva 500X Air Purifier Premium Carbon Filter $49.99
All air purifier replacement filters, compared in one table · Every Blueair product we cover
Final verdict
A sensible choice for blueair Protect 7400 Series owners. Confirm the model it fits before ordering.
Where to buy
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