Blueair Blue Pure 211+ vs Austin Air HealthMate HM400
Bottom line
In our scoring the Austin Air HealthMate HM400 rates higher, and the reason is mostly safety and media: it is ozone-free true HEPA with a low annual filter cost, while the Blueair 211+ is held down by an always-on ion charger it does not let you defeat and by HEPA-type rather than true HEPA media. On running cost the picture is split - the Austin Air is far cheaper per year in filters, but the Blueair's much lower purchase price keeps its five-year total below the Austin Air's. The Blueair does carry an AHAM-verified CADR of 350, which the Austin Air does not publish; if clean-air delivery for a large room is your priority and the ion charger does not bother you, that verified CADR is a real point in its favor.
Start with what each costs to run, because that is where these two diverge most. The Austin Air's single steel-cased filter is rated for years, so it works out to about 44 dollars a year in replacement media; the Blueair's combined particle-and-carbon filter is swapped roughly twice a year and runs closer to 118 dollars a year. Up front the order flips - the Blueair is 299 dollars to the Austin Air's roughly 845 - so over five years the Blueair's total is actually the lower of the two even though its yearly filter bill is higher. The other gap is what is inside. The Austin Air is true HEPA with about 15 lbs of activated carbon and zeolite and no ozone-emitting technology. The Blueair uses HEPA-type media (not true HEPA in our reading) and ships with an always-on ion charger that cannot be switched off.
| 350 cfm (AHAM-verified) | CADR (independently verified?) | no CADR published |
| 3.0 | Verified Performance30% | 1.0 |
| 3.5 | Total Cost of Ownership25% | 9.0 |
| 3.0 | Certification15% | 0.0 |
| 0.0 | Safety15% | 8.0 |
| 4.0 | Practical Fit15% | 6.0 |
FAQ
- Is the Blueair Blue Pure 211+ better than the Austin Air HealthMate HM400?
- In our scoring the Austin Air HealthMate HM400 rates 4.7/10 and the Blueair Blue Pure 211+ 2.8/10. In our scoring the Austin Air HealthMate HM400 rates higher, and the reason is mostly safety and media: it is ozone-free true HEPA with a low annual filter cost, while the Blueair 211+ is held down by an always-on ion charger it does not let you defeat and by HEPA-type rather than true HEPA media. On running cost the picture is split - the Austin Air is far cheaper per year in filters, but the Blueair's much lower purchase price keeps its five-year total below the Austin Air's. The Blueair does carry an AHAM-verified CADR of 350, which the Austin Air does not publish; if clean-air delivery for a large room is your priority and the ion charger does not bother you, that verified CADR is a real point in its favor.
- Does the Blueair 211+ produce ozone?
- It ships with an always-on ion charger that cannot be switched off. Ionizers can produce ozone as a byproduct, and because this one cannot be defeated, we do not credit the unit's safety dimension. We found no CARB ozone-emission listing that would let us credit it as compliant. That is a statement about what we could verify, not a measurement of its emissions.
- Why does the pricier Austin Air score higher?
- Two reasons under our rubric: it is ozone-free true HEPA, where the Blueair uses HEPA-type media and an always-on ionizer, and its filter costs far less per year to run. Its high purchase price is a real downside we weight, but it does not outweigh the safety and media gap in our scoring.
- Which has the verified clean-air delivery?
- The Blueair. It carries an AHAM-verified CADR of 350 cfm across smoke, dust, and pollen. The Austin Air does not publish an AHAM CADR, so we cannot credit a verified clean-air-delivery figure for it - we score the honest, verifiable number, which here favors the Blueair on raw delivery even though it scores lower overall.