Compared products
A quick scan of price and fit before the deeper read.
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easy to clean . Mainly for PM2.5 and dust removal. Low noise in sleep mode
We compared these products based on features, price, real-world feedback, and your priorities.
A quick scan of price and fit before the deeper read.
The best match for the priorities shown in this comparison.
Better for Shoppers wanting proven quiet sleep operation and easy-clean filters in medium rooms.
Why we recommend it
Blueair 311i Max best fits easy cleaning, verified 23 dB sleep noise, and dust removal — at $229, the priciest option.
5520 Air Purifier: USD 179.97; Blue Pure 311i Max Air Purifier: USD 229.0; Vital 100S-P Smart Air Purifier: USD 119.97
The trade-off to weigh before you check out.
Who should choose Vital 100S-P Smart Air Purifier instead? Consider product #65 if a different priority outweighs the recommended pick's main strength.
Higher isn't always better — it depends on what matters to you.
| Decision factor | 5520 Air Purifier | Blue Pure 311i Max Ai… | Vital 100S-P Smart Ai… |
|---|---|---|---|
| Room coverage | 7/ 10 | 8✓/ 10 | 5/ 10 |
| Sleep and night noise | 6/ 10 | 9✓/ 10 | 6/ 10 |
| Filter cost and cadence | 5/ 10 | 7✓/ 10 | 5/ 10 |
| App and automation | 6/ 10 | 9✓/ 10 | 6/ 10 |
Blue Pure 311i Max Air Puri… is the better fit for shoppers wanting proven quiet sleep operation and easy-clean filters in medium rooms..
Match score (/100) is the unweighted average of 4 scored factors (each 0–10, shown as /100). Every factor counts equally (25% of the match score each). Factors without a numeric score for all products are excluded.
Transparent, equal-weight scoring (shown as /100 in the breakdown above).
Match score (/100) is the unweighted average of 4 scored factors (each 0–10, shown as /100). Every factor counts equally (25% of the match score each). Factors without a numeric score for all products are excluded.
| Factor | Weight | 5520 Air Purifier | Blue Pure 311i Ma… | Vital 100S-P Smar… |
|---|---|---|---|---|
| Room coverageOnly Blueair publishes verified 439 sq ft coverage; others remain model-specific. | 25% | 7 / 10 → +17.5 Fit | 8 / 10 → +20 Fit | 5 / 10 → +12.5 Fit |
| Sleep and night noiseBlueair's verified 23 dB floor is the only confirmed sleep figure. | 25% | 6 / 10 → +15 Fit | 9 / 10 → +22.5 Fit | 6 / 10 → +15 Fit |
| Filter cost and cadenceOnly Blueair confirms a washable pre-filter; filter prices unlisted for all. | 25% | 5 / 10 → +12.5 Fit | 7 / 10 → +17.5 Fit | 5 / 10 → +12.5 Fit |
| App and automationBlueair lists app, Alexa, Google Home; rivals only on smart variants. | 25% | 6 / 10 → +15 Fit | 9 / 10 → +22.5 Fit | 6 / 10 → +15 Fit |
| Fit total (rounded average) | 60/100 | 83/100 | 55/100 | |
Choose by the moment you expect to use it most.
Best for: Shoppers wanting proven quiet sleep operation and easy-clean filters in medium rooms.
Best for: Households that need smart bedroom / pets with the listed CADR, filtration, and control features.
Best for: Households that need large room / smart with the listed CADR, filtration, and control features.
Catalog and specification differences with everyday impact
Vital 100S-P Smart Air Purifier leads with 4.7/5 from our published review.
5520 Air Purifier: Yes on smart variants; otherwise no vs Blue Pure 311i Max Air Purifier: Yes (Blueair app, Alexa, Google Home) vs Vital 100S-P Smart Air Purifier: Yes on smart variants; otherwise no. Compare how this difference affects your daily routine, not just the number. Based on verified specifications and published review data.
5520 Air Purifier: Model-specific AHAM CADR; see manufacturer specification vs Blue Pure 311i Max Air Purifier: 283 smoke / 314 dust / 365 pollen CFM vs Vital 100S-P Smart Air Purifier: Model-specific AHAM CADR; see manufacturer specification. Compare how this difference affects your daily routine, not just the number. Based on verified specifications and published review data.
| Specification | 5520 Air Purifier | Blue Pure 311i Ma… | Vital 100S-P Smar… |
|---|---|---|---|
| Fit score | 60/100 | 83/100 | 55/100 |
| Catalog price | $179.97 | $229.00 | $119.97 |
| Air Quality Sensors | PM or particulate sensor on sensor-equipped variants | PM or particulate sensor on sensor-equipped variants | PM or particulate sensor on sensor-equipped variants |
| App Control | Yes on smart variants; otherwise no | Yes (Blueair app, Alexa, Google Home) | Yes on smart variants; otherwise no |
| Auto Mode | Yes on smart/sensor variants; otherwise no | Yes on smart/sensor variants; otherwise no | Yes on smart/sensor variants; otherwise no |
| Cadr | Model-specific AHAM CADR; see manufacturer specification | 283 smoke / 314 dust / 365 pollen CFM | Model-specific AHAM CADR; see manufacturer specification |
| Filter Lifespan | Typically 6-12 months; follow filter indicator | Typically 6-12 months; follow filter indicator | Typically 6-12 months; follow filter indicator |
| Filtration Technology | Pre-filter + particulate filter + activated carbon (variant-dependent) | Pre-filter + particulate filter + activated carbon (variant-dependent) | Pre-filter + particulate filter + activated carbon (variant-dependent) |
| Noise | Model-specific; sleep/low mode available on listed models | 23-50 dB | Model-specific; sleep/low mode available on listed models |
| Power Consumption | Model-specific; ENERGY STAR or manufacturer rating where applicable | Model-specific; ENERGY STAR or manufacturer rating where applicable | Model-specific; ENERGY STAR or manufacturer rating where applicable |
| Recommended Room Area | Model-specific coverage; see manufacturer specification | 439 sq ft at 4.8 ACH | Model-specific coverage; see manufacturer specification |
| Replacement Filter Cost | Varied by model; verify current genuine replacement | Varied by model; verify current genuine replacement | Varied by model; verify current genuine replacement |
The inputs behind this comparison.