Why it matters
The Blueair ComfortPure 3-in-1 T20i Replacement Filter is a maker-original filter for the Blueair ComfortPure 3-in-1 T20i Air Purifier.
Made for Blueair's ComfortPure 3-in-1 T20i 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.
It fits the Blueair ComfortPure 3-in-1 T20i Air Purifier, which its maker lists as rated for 352 sq ft. 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.
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 ComfortPure 3-in-1 T20i Air Purifier 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
- Medify Air MA-112 PRO Filter Set $139.99
- Nispira Replacement Filter for Honeywell HPA5300
- Filter-Monster fr400 Replacement Filter for Austin Air
- Rabbit Air BioGS 2.0 Charcoal-Based Activated Carbon Filter $35.95
- Coway Airmega Halo Filter $49.99
All air purifier replacement filters, compared in one table · Every Blueair product we cover
Final verdict
A well-matched choice for blueair ComfortPure 3-in-1 T20i Air Purifier owners. Confirm the model it fits before ordering.
Where to buy
Each button opens this exact model. Disclosure