Blueair Blue Pure 121
- Device:
- Blueair Blue Pure 121 Air Purifier
- Model:
- Blue Pure 121
- Market:
- US model (verified against US sources)
Compatible filters (2)
Blueair Blue Pure 121 Extra Protection Particle + Carbon Filter
Part number F121PACF101653 · Official Blueair part
Why this fits
Blueair lists this part for this model on its official website.
Blueair's official filter page states: "This filter is compatible with the Blue Pure 121 air purifier."
View manufacturer source(official product page · Blueair)(opens the official source in a new tab)
Checked October 2026
Maintenance
- Replace: every 6 monthsBlueair's filter replacement indicator turns red after about 6 months of operation.Source ↗
Intervals are manufacturer guidance; heavy use or poor air quality can shorten them.
Blueair Blue Pure 121 Particle + Carbon Filter
Part number F121PACF104507 · Official Blueair part
Why this fits
Blueair lists this part for this model on its official website.
Blueair's official filter page states: "This filter is compatible with the Blue Pure 121 air purifier."
View manufacturer source(official product page · Blueair)(opens the official source in a new tab)
Checked October 2026
Maintenance
- Replace: every 6 monthsBlueair's filter replacement indicator turns red after about 6 months of operation.Source ↗
Intervals are manufacturer guidance; heavy use or poor air quality can shorten them.