Air Purifiers · Head-to-head
Blueair Blue Pure 311i Max vs Levoit Core 300S
Specifications
| Spec | Blueair Blue Pure 311i Max | Levoit Core 300S |
|---|---|---|
| Exact model / SKU | 3332111100 | Core 300S-P |
| Workflow type | Standard Room | Compact Room |
| Independent PM1 CADR at maximum | 220 CFM | 131 CFM |
| Independent PM1 CADR at low-noise setting | 108 CFM | 80 CFM |
| Quiet-test threshold | <45 dBA | ≤45 dBA |
| Measured noise range | 23–50 dB | 22–50 dB |
| AHAM-certified smoke CADR | 283 CFM | — |
| Ionization/electronic stage present | Yes | — |
| Ionization can be disabled | No | — |
| Model-specific ozone/technology disclosure | Zero Ozone Verified by Intertek Sustainability (<5 ppb); CARB ozone-safety certified | Ozone Free |
| Particle-filter construction/certification | HEPASilent dual filtration combining electrostatic and mechanical filtration | 3-stage filtration: pre-filter, main particle filter, and activated-carbon filter |
| Carbon-media format | Carbon-impregnated fabric | Activated-carbon pellets |
| OEM replacement-filter price | 44.99 USD | 29.99 USD |
| Manufacturer direct/list price | 229.99 USD | 149.99 USD |
| Dated US street price | 172.49 USD | 134.99 USD |
Blueair Blue Pure 311i Max
Pros
- Standard-room buyer fit
- Two distinct exact-model corroborating sources
- Technology condition is clearly disclosed
Cons
- Non-disableable ionization may not suit every buyer
- Ionization is a required ownership consideration
Recommended for standard-room buyers who accept its non-disableable ionization as part of the HEPASilent system.
Full Blueair Blue Pure 311i Max review →Levoit Core 300S
Pros
- Compact-room fit under the published CADR rule
- Two distinct independent exact-model test sources
- Exact US model evidence
Cons
- Not positioned for large-room use
- Cross-publisher measurements are not directly merged
Recommended for buyers furnishing a compact room who want a model supported by separate exact-model testing from RTINGS and HouseFresh.
Full Levoit Core 300S review →Both products are part of our guide Best Air Purifiers: Evidence-Qualified Picks for Different Room Sizes, where you can see every pick, how we score and current prices from each retailer.