Main trade-off
Blueair Blue Pure 311i Max
A 12.5-inch-deep footprint is less shallow along a wall
Head-to-head
Choose Blueair 311i Max for the larger published room rating and a lighter unit you may move regularly. Choose Vital 200S-P when a shallow rectangular cabinet fits better along a wall. Both offer app control and washable prefilters, so decide around the room and placement before looking at convenience features.
Before you choose
Blueair adds 51 sq ft at the same stated air-change rate.
What this is based on
439 − 388 = 51 sq ft. 51 ÷ 388 = 13.1%. This is a capacity comparison, not a measured difference at quiet settings.
Main trade-off
A 12.5-inch-deep footprint is less shallow along a wall
Main trade-off
Lower published room capacity in this pair


Compare Blueair 311i Max and Vital 200S-P for room capacity, cabinet shape and upkeep. Find the right fit without treating minimum noise as equal airflow.
Choose Blueair 311i Max for the larger published room rating and a lighter unit you may move regularly. Choose Vital 200S-P when a shallow rectangular cabinet fits better along a wall. Both offer app control and washable prefilters, so decide around the room and placement before looking at convenience features.
Winner by situation
420 falls within Blueair's 439 rating and exceeds Vital's 388 rating.
Both have sufficient published room ratings and connected control.
Blueair is 12.5 inches deep and Vital is 8.5. Ventilation clearance remains additional.
Blueair is 12.5 inches wide and Vital is 15.6.
Minimum noise figures use different operating points and do not answer that question.
What matters in practice
Blueair adds 51 sq ft at the same stated air-change rate.
439 − 388 = 51 sq ft. 51 ÷ 388 = 13.1%. This is a capacity comparison, not a measured difference at quiet settings.
Vital is four inches shallower and 3.1 inches wider.
12.5 − 8.5 = 4 inches depth. 15.6 − 12.5 = 3.1 inches width, before ventilation clearance.
Its published dry weight is 5.4 lb lower.
13.2 − 7.8 = 5.4 lb, approximately 41% less than Vital's weight. This does not establish handle comfort or one-handed safety.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
283 CFM of verified clean-air delivery gives about 7.1 air changes per hour here. The 5 ACH target needs 200 CFM.
No comparable verified smoke CADR is stored for this exact model.
This uses maximum-speed, pollutant-specific CADR and a five-air-changes-per-hour target. Quieter settings deliver less clean air. It does not substitute raw airflow or a one-change coverage claim.

Blueair, 311i Max
A quiet smart cylinder that sits between Blueair's compact 511i and larger 211i, with serious smoke airflow for its 12.5-inch base.

Levoit, LAP-V201S-WUS
A pet-friendly rectangular purifier with a broad lower intake, washable prefilter and capable VeSync automation.
Meaningful differences
| What changes | Blueair Blue Pure 311i Max | Levoit Vital 200S-P | Why it matters |
|---|---|---|---|
| Room rating at 4.8 ACH | 439 sq ft in technical specifications | 388 sq ft | The current Blueair title differs, so this comparison uses its technical table. |
| Cabinet width and depth | 12.5 × 12.5 in | 15.6 × 8.5 in | A narrow round shape and a shallow rectangular shape use space differently. |
| Height | 19 in | 19.8 in | The height difference is small relative to the floor-plan difference. |
| Published weight | 7.8 lb | 13.2 lb | Consider lifting and access to a second outlet. |
| Rated power | 32 W | 50 W | These are rated inputs, not equal-airflow consumption. |
| Prefilter | Washable exterior fabric prefilter | Washable internal prefilter | Pick the maintenance access and appearance you prefer. |
What you give up
Recommendation switch
Choose Blueair Blue Pure 311i Max. Blueair has the applicable published capacity.
Choose Levoit Vital 200S-P. Vital's shallower body clears that physical limit.
What matters in practice
Blueair's current technical table gives 439 sq ft at 4.8 ACH. Vital gives 388. Neither one-hour coverage headline means the same level of repeated circulation, and a quiet mode will not necessarily deliver the rated maximum.
Blueair uses a more circular 12.5-inch footprint. Vital is broad and shallow. A narrow alcove can favor Blueair while a wall beside a walkway may favor Vital. Both still need unobstructed intake and exhaust.
The washable prefilters are accessible in different ways. Blueair's fabric cover also forms part of its appearance. Vital's prefilter sits behind its panel. App control is available on both, so it does not resolve this pair by itself.
What the facts say
Useful conclusions from the current air purifiers comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Blueair Blue Pure 311i Max |
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| Levoit Vital 200S-P |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Size a room above 388 and up to 439 sq ft at 4.8 ACH
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Fit an 8.5-inch-deep cabinet along a wall
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