Blueair
Blue Pure 211+ Auto
AHAM Verifide at 353 cfm smoke CADR for a 550 sq ft room, and Blueair publishes exactly those numbers rather than a flattering pair — which almost nothing else in this catalogue does. It draws 4 W on its lowest speed.
AHAM Verifide at 250 cfm smoke across 388 sq ft, with a washable pre-filter and a sensor-driven auto mode — the biggest CARB-Mechanical machine in this catalogue.
Pros
Cons
Verdict
The Vital 200S-P is the largest CARB-Mechanical machine in this catalogue, and that combination is the reason to look at it: 250 cfm smoke across 388 sq ft with no electrostatic stage anywhere in the design. AHAM measured that 250 and Levoit publishes the same number, with both air-change bases printed side by side, so the coverage figure survives checking from three directions. The pre-filter is washable and Auto Mode runs off an infrared dust sensor rather than a clock. The friction is all in the consumable. Levoit publishes no part code for the filter, states the interval only on the filter's own page as a 6–12 month range, sells four different carbon versions for the same machine, and words compatibility as a "series". Decide which cartridge you want before the indicator lights, not after.
Price, seller and package contents change. Check the variant on Amazon before you buy.
Who it's for
Who should skip it
How this coverage figure is stated
4.8 air changes per hour, and it reconciles three ways. AHAM's directory prints 388 sq ft; AHAM's own rule gives 250 x 1.55 = 387.5; and Levoit's specification table prints "1862 ft2 (1 ACH) / 388 ft2 (4.8 ACH)" — the same 388, with both bases shown. Its headline 250 CFM is the same number AHAM measured. That is the fourth Levoit in this catalogue whose published coverage survives the arithmetic.
Always compare two purifiers at the same air-change rate; manufacturers pick different ones and the headline square footage is not otherwise comparable.
| Smoke CADR | 250 cfm, AHAM Verifide and Levoit's own page states the same 250 |
|---|---|
| AHAM suggested room size | 388 sq ft, equivalent to 4.8 air changes per hour |
| CARB | Certified, device type Mechanical, notified 2022-11-23, executive order G-22-455 |
| Noise | 23–54 dB |
| Power | 50 W stated by Levoit AHAM recorded 52.4 operating watts during its smoke test |
| Filter life | "Designed to last 6–12 months" stated on the filter's page and not on the purifier's |
| Replacement filter | Vital 200S Replacement Filter plus three alternative carbon versions |
| Dust CADR | 254 cfm, AHAM Verifide |
|---|---|
| Pollen CADR | 289 cfm, AHAM Verifide its strongest measured figure |
| PM2.5 CADR | 252 cfm, AHAM Verifide |
| Manufacturer room size | 1,862 sq ft at 1 air change per hour, 388 at 4.8 Levoit publishes both bases |
| Dimensions | 15.6 x 8.5 x 19.8 in |
| Weight | Not published by Levoit for this model |
| Pre-filter | Washable, per Levoit's own stage description |
| Sensor | Infrared Dust Sensor, which is what drives Auto Mode |
| ENERGY STAR | Not in the certified-products list and Levoit makes no such claim for this model |
Our calculation, not the manufacturer’s
| Air changes | When you want this rate | Room it suits |
|---|---|---|
| 4.8×/hour | Wildfire smoke, allergy season, a room you are sensitive in | 391 ft² |
| 4×/hour | The rate most allergy guidance assumes | 469 ft² |
| 2×/hour | General freshening in a room without a specific problem | 938 ft² |
Worked from the CDC/NIOSH relation
air changes = (CADR × 60) ÷ (area × ceiling height),
assuming an 8 ft ceiling. Change the ceiling height and these
numbers change. AHAM’s own consumer rule — a smoke CADR of at
least two-thirds of the room’s area — puts the ceiling for this
unit at about 375 ft², which is the same arithmetic
at roughly five air changes an hour.
You can check this at home. In a closed room of the size in the first row, PM2.5 should halve about every nine minutes at top speed once its source stops. A monitor shows whether this unit manages that in your home. How to run the test
Ionizer and ozone
CARB lists it Mechanical, and at 388 sq ft that makes it the largest purely mechanical machine we cover.
CARB's complete list carries "LEVOIT | Air Purifier | LAP-V201S-WUS | Mechanical | 2022-11-23 | G-22-455", with the -AUSR variant under the same order and the -KUS under G-23-281 from 2023-11-02. Mechanical means California's certifier identified no ozone-generating component, so the unit was never subject to the ozone emission test that Electronic devices must pass.
Levoit's page describes no ionizer, no UV lamp and no ozone-producing stage, and offers no switch for one. If you want size without an electrostatic stage, this is the machine in this catalogue that delivers it.
| Capability | What it needs | Status |
|---|---|---|
| Particle filtration | 3-stage cartridge, pre-installed | Included |
| Odour reduction | Activated carbon layer, part of the same cartridge | Included |
| Washable pre-filter | Built into the cartridge assembly; Levoit describes it as washable | Included |
| Auto mode with sensor | Infrared Dust Sensor, built in | Included |
| App and voice control | VeSync app; Alexa or Google Assistant account | Included |
| Replacement cartridge | Vital 200S Replacement Filter, sold separately — or one of three carbon versions | Sold separately |
| Published weight | Not published by Levoit for this model | Not verified |
Package contents vary by variant and seller. Check what is in the box on the Amazon listing before you buy. “Not verified” means the manufacturer does not document it either way — not that it is missing. “Not offered” is the other thing: the manufacturer does document it, and the answer is that this model does not have it.
Levoit Vital 200S replacement filter
Part Vital 200S-RF · "Designed to last 6–12 months", per Levoit's page for this filter. Two things about that. It is not stated on the purifier's page at all, so if you go looking where you would expect to find it, you will not. And a six-to-twelve month range is wide enough to be nearly two different answers — at one end you buy one a year, at the other you buy two. For comparison inside the same brand: Levoit states 6–12 months for the Vital 100S-P, 6–8 for the Vital 100, 6–8 for the Core 200S, and nothing at all for the Core 400S and Core Mini. The intervals are not consistent across the range, so do not carry one model's figure to another.
Checked against the AHAM Verifide directory, CARB's certified air-cleaner list, the ENERGY STAR certified-products list and the manufacturer's own pages. We did not test this unit. Nothing here is a measurement of ours: every figure is either documented by the manufacturer or published by an independent standards or testing body, and where the two disagree this page says so.
Blueair
AHAM Verifide at 353 cfm smoke CADR for a 550 sq ft room, and Blueair publishes exactly those numbers rather than a flattering pair — which almost nothing else in this catalogue does. It draws 4 W on its lowest speed.
Blueair
AHAM Verifide at 283 cfm smoke for a 439 sq ft room, and the rare case where the electrostatic question has an actual number attached: ENERGY STAR measured its ozone emission at 2 ppb.
Blueair
A compact tower with an AHAM Verifide smoke CADR of 123 cfm and a 190 sq ft AHAM room size. CARB classifies it Electronic, which is a consequence of how Blueair's HEPASilent works rather than a fault.