Air Purifiers · Head-to-head
Blueair Blue Pure 211i Max vs Levoit Core 300-P
The short answer
Blueair Blue Pure 211i Max comes out ahead overall with 7.4/10 against 7.1/10 for the Levoit Core 300-P. Blueair Blue Pure 211i Max is stronger on cleaning performance for bedroom size and sleep-friendly features. Levoit Core 300-P is stronger on running cost & ownership and value. At current verified prices, the Levoit Core 300-P costs about $225.00 less.
- Choose the Blueair Blue Pure 211i Max if: Owners of a large primary suite who want high CADR at night without an always-on ionizer, for about $90 less than the SP4i.
- Choose the Levoit Core 300-P if: Budget shoppers with a small bedroom or kid's room of about 220 sq ft or less.
Scores by criterion
| Criterion | Blueair Blue Pure 211i Max | Levoit Core 300-P |
|---|---|---|
| Noise at sleep-usable speeds | 7.3RTINGS snippet: 33.9 dBA on low; no measured airflow below 45 dB. | 7.0HouseFresh: 37.1 dB in sleep mode; speed 2 is 40.5–45.7 dB. |
| Cleaning performance for bedroom size | 8.5435 smoke CADR rated. | 5.5143 cfm rated; about 109 cfm PM1 at top speed (HouseFresh). |
| Sleep-friendly features | 8.0Night mode with dimmed lights, auto, app. | 7.3Sleep mode, display off, timer; no sensor. |
| Indoor-air safety & materials | 7.0Zero-ozone verified and CARB; HEPASilent uses electrostatic charging. | 7.0Ozone-free and CARB; named in the labelling settlement. |
| Running cost & ownership | 6.546 W; filters last about 9 months. | 8.2Cheap, common filters. |
| Value | 6.5$349. | 8.8$89.99. |
Specifications
| Spec | Blueair Blue Pure 211i Max | Levoit Core 300-P |
|---|---|---|
| Workflow type | Extra Large Room | — |
| Lowest-speed noise (manufacturer) | 23 dB | 24 dB |
| Top-speed noise (manufacturer) | 53 dB | 54.5 dB |
| Lowest-speed noise (independent measurement) | 33.9 dBA | 37.1 dBA |
| CADR (smoke where given, else headline) | 435 cfm | 143 cfm |
| Recommended room size (4.8–5 ACH / AHAM) | 674 sq ft | 222 sq ft |
| Max power draw | 46 W | 56 W |
| Sleep / night mode | Yes | Yes |
| App control | Yes | No |
| Ionizer / electrostatic stage | HEPASilent (electrostatic charging + mechanical filtration) | None (listed ozone-free) |
| Filter type | HEPASilent particle + carbon filter, washable fabric pre-filter | 3-stage: pre-filter + HEPA-type + activated carbon |
| Main filter life | 9 months | — |
| Quiet Mark certified | Yes | — |
Blueair Blue Pure 211i Max
Pros
- Large CADR headroom
- Night mode with dimmed lights
- Zero Ozone Verified per retailers
- Cheaper than the SP4i
- App control
Cons
- Limited independent noise testing
- Oversized for small rooms
- Loud at max, about 58.7 dBA
- Premium price
A sensible big-room alternative to the SP4i if you want to skip the unswitchable ionizer and save some money.
Full Blueair Blue Pure 211i Max review →Levoit Core 300-P
Pros
- Budget price
- 37.1 dB in sleep mode
- No ionizer
- Compact
- Low running cost
Cons
- Low airflow
- Needs higher speeds to clean a 200 sq ft room
- No app
- Named in the Vesync filter settlement
Good value for a small room, as long as you accept running it above sleep mode.
Full Levoit Core 300-P review →Both products are part of our guide The Best Quiet Air Purifiers for Bedrooms of 2026, where you can see every pick, how we score and current prices from each retailer.