Which bladeless fan is the quietest?
The Dyson HushJet Cool Pure+ Formaldehyde lists the lowest Quiet Mode row of any Dyson fan, 24, but it is a purifier and was out of stock. Among plain fans, the Hot+Cool HF1 lists 26 dBA.
These are the Quiet Mode rows from Dyson's US product pages:
- HushJet Cool Pure+ Formaldehyde: 24 Decibel on one colour page, 24 dBA on the other
- Hot+Cool HF1: 26 dBA
- Cool CF1: 29 dBA
- Find+Follow Purifier Cool PC3: 50 dBA
All four use the same row label on the same site, so the order holds within Dyson. A 2 or 3 dB gap with no stated test is a thin margin, though, and Dyson gives no tolerance. The PC3's 50 dBA is a different story, more than 20 dB above the rest.
The (Max) rows, quoted but not ranked
Each page also prints a row labelled (Max): 42 dBA for the CF1, 44 for the HF1, 50 for the HushJet and 61.5 for the PC3. Dyson attaches no speed to the label, so we list these beside each fan and leave them out of the order.
Are bladeless tower fans really bladeless?
No, many tall fans sold as bladeless still have blades inside. Dreo's support page calls its MC710S purifier tower fan bladeless, yet Dreo's own manual for that fan tells owners to clean the dust on the blades.
The MC710S manual, filed under DR-HTF010S, shows a cross-flow tower with a rear grille, and one cleaning step reads "Clean the dust on blades using a vacuum cleaner or air duster." The cylinder behind the grille is a long bladed rotor, the same part found in an ordinary tower fan.
Dreo's support page for the MC710S carries a "25dB Low Noise" claim in its page description, with no speed attached. We treat it as a tower fan, and our tower fan guide covers that kind of machine.
No, outside Dyson none of the fan companies we read gives a decibel row for a US loop fan. Pelonis prints 20 dB for a bladeless tower, but only on its Canadian site.
The Pelonis Canada page heads the fan PSFD42W6ALGC, lists PSFAS07R2ALGC in its specification table, and gives "Sound Level 20 dB". Two model numbers for one fan make the figure hard to pin down, and the US Pelonis electric fans page lists towers and table fans but nothing called bladeless.
Shark's US site answered with a Cloudflare challenge, which we did not attempt, so its fans are not counted here.
How quiet is the Dyson HF1 compared with the CF1?
The Dyson HF1 lists 26 dBA in Quiet Mode against 29 dBA for the CF1, a 3 dB gap in the HF1's favour on Dyson's own rows. Both draw 30 W in fan mode and oscillate 70 degrees.
The two loops look alike on a desk: the HF1 is 23 in tall and 2.2 lb, the CF1 21.6 in and 3.9 lb. The HF1 adds a 1,500 W ceramic heater and a thermostat.
Price is the deciding gap. On October 26, 2026, the HF1 was $299.99 and the White/Silver CF1 was $249.99, both on sale. A bedroom that only ever needs cooling saves $50 with the CF1, for a Quiet Mode row 3 dB higher.
Are Dyson purifier fans louder than its plain fans?
Yes for Dyson's loop purifier fans, which list Quiet Mode rows well above the HF1 and CF1. No for the HushJet Cool Pure+, a nozzle purifier whose 24 is the lowest Dyson row.
The Find+Follow PC3, a 41.3 in loop tower with a filter, lists 50 dBA in Quiet Mode, 21 dB above the plain HF1. The HushJet Cool Pure+ breaks the pattern at 24, with a nozzle and compressor in place of a loop, and Dyson credits a HushJet silencer for the result.
The TP10's sheet takes another route. It prints a floor and a ceiling for speed 4, 42.6 and 50.0 dB(A), and for speed 10, 57.8 and 61.4. Ranges like these are not the same kind of number as a Quiet Mode row, so the TP10 is listed without a rank.
One page, two numbers at full power
The HushJet Cool Pure+ page for Steel Violet/Deep Bronze says "Only 47dB at maximum power" in its copy and "Sound level (Max) 50 Decibel" in its table. The Stone Pink/Satin Copper page says 50 in both places. We use the table, which matches across colours.
