The 530 and 660 tie on low
Both print 43 dBA at the bottom speed, with the 733DC one decibel behind at 44.
| Vornado model | Low-speed figure |
|---|
| 530 | 43 dBA |
| 660 | 43 dBA |
| 733DC | 44 dBA |
| 633 | 45 dBA |
| 630 | 47 dBA |
Two other Vornados print lower bottom figures, 39 for the 279TR and 40 for the 6303DC. Neither made the ranking. On November 7, 2026, Amazon showed the 279TR only in limited stock and returned no listing for the 6303DC, so both sit under also considered.
Reading a Vornado Sound (dBA) row
The row is a slash-separated string, one reading per speed, with no speed label, no distance and no test standard beside it.
You can still work out which number belongs to low. The Watts and Air Volume (CFM) rows on the same table run in the same order, largest first, and the sound row falls with them. On the 660, 59/53/47/43 sits beside 1638/1174/862/663 CFM and 53/41/33/27 watts, every row dropping in step, so the 43 has to be the bottom speed. The same logic holds across the 530, 630 and 633.
The 733DC is the exception. It has a variable dial, so its 63/44 describes the two ends of the dial rather than set steps.
Our Vornado fan decibels page covers the rest of the range, box and tower models included.
Which air circulator moves the most air on low?
The Vornado 630, at 823 CFM. It pays for that with the highest low-speed figure of the five, 47 dBA.
| Model | Low-speed airflow | Low-speed figure |
|---|
| Vornado 630 | 823 CFM | 47 dBA |
| Vornado 660 | 663 CFM | 43 dBA |
| Vornado 633 | 484 CFM | 45 dBA |
| Vornado 530 | 363 CFM | 43 dBA |
The 733DC's table has no CFM row, so it cannot join this comparison.
For a fan left on low all night, the 660 and 530 make the clearest pair: the same 43 dBA, with Vornado crediting the larger fan with 300 more cubic feet a minute.
High speed runs from 54 to 63 dBA
At the top setting the order shuffles. The 530 and 630 share the lowest figure, 54 dBA, and the 733DC is loudest.
| Model | High-speed figure | High-to-low spread |
|---|
| Vornado 530 | 54 dBA | 11 dB |
| Vornado 630 | 54 dBA | 7 dB |
| Vornado 633 | 56 dBA | 11 dB |
| Vornado 660 | 59 dBA | 16 dB |
| Vornado 733DC | 63 dBA | 19 dB |
The spread column is simple subtraction from each table. A narrow spread, like the 630's 54 to 47, means low is not much quieter than high on that fan; the 733DC's dial covers 19 decibels between its ends.
Is a DC air circulator quieter?
Not on Vornado's tables. The 733DC Energy Smart lists 63/44 dBA, four decibels above the AC-powered 660 at the top and one above it at the bottom.
Power draw is where the DC motor earns its place. At the bottom of its dial the 733DC lists 2 watts, against 27 for the 660 on low, and Vornado says its brushless motor "uses up to 80% less energy". A variable dial also lets you stop between the printed ends, which the 3-speed and 4-speed models cannot do. The 6303DC, a medium DC model, prints 59/51/40, a lower bottom figure than any ranked pick, but Amazon showed no listing for it.
The VORA 8's 32 dBA has no speed attached
Vornado's table gives a single "Sound (dBA) 32" for a fan with 10 speeds. Which speed or mode produced it, the page never says.
That is 11 below the lowest ranked figure. It still cannot sit in a list of per-speed readings. The giveaway is the Amps row on the same table, which reads "0.58 (Highest speed)": Vornado tied that row to a speed and left the sound row untied.
For a bedroom, the Sleep Mode is the more useful detail. In Vornado's description, "Fan speed reduces every 30 minutes over two hours until the fan powers off unless a timer is set."
Lasko labels its Whirlwind by speed
The Whirlwind A12557 page reads "Noise dB-Low 35.5 dBa" and "Noise dB-High 52.2 dBa". Lasko names the speed for each figure, which Vornado does not, but it names no distance or standard either.
With neither maker saying where the meter stood, the 35.5 cannot be set against Vornado's 43. Lasko does not call the A12557 a DC model, unlike its Whirlwind 7 DC sibling, and the Lasko fan decibels page lists the rest of its range.
The TurboForce page on honeywellstore.com offers "25% quieter than comparable fans" and stops there. No baseline fan, no test.
A relative claim like that is quoted here and never ranked. The manual linked from the same page has no noise figure either, and honeywellpluggedin.com, the site of Honeywell's fan licensee, refused our requests on November 7, 2026.
Both sell table and floor circulators. What they publish are plain dB claims with no speed or weighting, or "as low as" floors.
Each model's wording is collected on our Dreo fan decibels and Levoit fan decibels pages.
What size air circulator does a room need?
Vornado sizes them by reach, printed in each description.
| Model | Reach |
|---|
| Vornado 530 | up to 65 feet |
| Vornado 630 | up to 70 feet |
| Vornado 633 | up to 75 feet |
| Vornado 660 | a full 100 feet |
| Vornado 733DC | up to 100 feet |
The 630 is pitched as "ideal for small to midsize rooms", and both the 630 and 633 pages say the fan can sit on the floor or a tabletop. Size helps quiet as well as reach. A larger circulator on low can move more air at the same figure, which is exactly what the 660 does against the 530. Our quiet bedroom page covers the rest of a room that has to stay quiet at night.
