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 34 cfm smoke and sized at 53 sq ft — against a 254 sq ft figure on the box. The gap between those two numbers is the widest in this catalogue, and both are Levoit's.
Pros
Cons
Verdict
Judged as what it is — a 53 sq ft machine — the Core Mini-P is honest and well documented. AHAM measures it at 34 cfm smoke, Levoit states the same 34, and the 53 sq ft room size reconciles from both directions. It draws about 7 W, which AHAM's own measurement confirms, and it sits at 25 dB on its lowest setting. CARB classifies it Mechanical and Levoit calls it ozone free. Two things will trip you up. The 254 sq ft you see first is the one-air-change figure and is nearly five times the comparable number. And "Core Mini" names two different machines: AHAM lists a LAP-C161 and a LAP-C171 under it, identical except that their measured pollen CADR is 44 and 61. Read the model code on your own unit — it decides which figures apply and which filter to order.
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. AHAM's directory prints 53 sq ft, AHAM's own rule gives 34 x 1.55 = 52.7, and Levoit's specification table prints "254 ft2 (1 ACH) / 53 ft2 (4.8 ACH)" — the same 53. All three agree. What matters is which of Levoit's own two numbers you read: 254 sq ft is the room this machine changes the air in ONCE an hour; 53 sq ft is the room it manages at the 4.8 changes AHAM sizes by. That is a factor of nearly five between two figures on the same page.
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 | 34 cfm, AHAM Verifide and Levoit's own page states the same 34 CFM |
|---|---|
| AHAM suggested room size | 53 sq ft, equivalent to 4.8 air changes per hour identical for both versions |
| CARB | Certified, device type Mechanical, notified 2021-11-04, executive order G-21-478 |
| Noise | 25–44 dB |
| Power | 7 W stated by Levoit; AHAM recorded 6.8 operating watts during its smoke test the two agree closely |
| Filter life | Not stated on either the purifier's page or the filter's page |
| Replacement filter | LRF-C161-WUS and the plain Core Mini takes a different one |
| Dust CADR | 39 cfm, AHAM Verifide |
|---|---|
| Pollen CADR | ⚠️ Two different figures under one name: 44 cfm for the LAP-C161 and 61 cfm for the LAP-C171. Check the code on your machine see below |
| PM2.5 CADR | 36 cfm for the LAP-C161, 37 for the LAP-C171 |
| Manufacturer room size | 254 sq ft at 1 air change per hour, 53 sq ft at 4.8 Levoit publishes both bases |
| Dimensions | 6.5 x 6.5 x 10.4 in |
| Weight | 2.2 lb |
| Ozone | Described by Levoit as "Ozone Free"; CARB independently classifies the device Mechanical |
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 | 53 ft² |
| 4×/hour | The rate most allergy guidance assumes | 64 ft² |
| 2×/hour | General freshening in a room without a specific problem | 128 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 51 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 Levoit describes it as "Ozone Free" — two statements that agree, from two sources, one of them independent.
CARB's complete list carries "LEVOIT | Core Mini Air Purifier | LAP-C161-WUS | Mechanical | 2021-11-04 | G-21-478", alongside later rows for the LAP-C171 night-light versions. 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. There is no ionizer and no UV lamp described on the product page, and no switch for either.
The aroma pad is a different matter and worth naming plainly: it adds scent to air the machine is filtering. Levoit lists it in the box contents as a separate item, "1 x Aroma Pad (Pre-Installed)", but does not state on this page whether it can be taken out.
| Capability | What it needs | Status |
|---|---|---|
| Particle filtration | 3-stage cartridge, pre-installed | Included |
| Odour reduction | Activated carbon layer, part of the same cartridge | Included |
| Aroma pad | Shipped pre-installed; Levoit does not state whether it can be removed | Included |
| App, Wi-Fi or voice control | Not offered on this model | Not offered |
| Auto mode or sensor | Not offered on this model | Not offered |
| Replacement cartridge | LRF-C161-WUS, sold separately — confirm against your model code | Sold separately |
| Stated filter interval | Not published on either Levoit page | 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 Core Mini replacement filter
Part LRF-C161-WUS / UPC 810043375559. / "Core Mini-RF" is the code you will see on retail listings. It is NOT on Levoit's product page, which gives LRF-C161-WUS instead. Both refer to the same cartridge; they are simply printed in different places. · ⚠️ LEVOIT DOES NOT STATE AN INTERVAL on this filter's product page. Checked 14-sep-2026. The figures Levoit publishes for its range live in its maintenance article and are given per stage: main filters "should be changed every 6–12 months" and carbon filters "need replacement every 3–6 months". On this cartridge all three stages are one sealed piece, so the shorter of the two is effectively the clock — the carbon is expected to be spent while the particle stage still has life, and you replace both because they are bonded. No hours-per-day assumption is published behind either figure, so neither can be scaled arithmetically.
Checked against the AHAM Verifide directory, CARB's certified air-cleaner 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.