Search for eufy robot vacuum decibels and the product pages mostly come up empty. Of the seven robots eufy sells on its US store today, six print no noise figure on their own pages, in the text, the images or the user guide. The figures exist, but in one place: a comparison table on the Omni C20 page, which lists the C20 and three other robots side by side with a row for noise.
We opened the product page for every robot in eufy's US robot vacuum collection, read the text inside its images, and read the user guides eufy links from its pages and its support site. Four current robots carry a figure, all in that table, all under the same label and in the same unit. That makes eufy one of the easier brands to rank, though the four sit within a decibel of each other.
Our picks are listed above, with full specifications for each.
The table's row is "Noise (Standard, Vacuum-only)", in plain dB. Standard is the default of the four suction levels the C20 user guide names, "Quiet, Standard (Default), Turbo, and Max", and vacuum-only means the mop is not running. That is a more useful label than most makers give: it describes the setting the robot uses out of the box, not its quietest one. eufy states no distance, floor or test room. It gives two of the figures to two decimal places, one as a whole number and one as a ceiling.
eufy's other model figures carry different labels, and each belongs to a robot that was out of stock when we checked:
- No mode. The RoboVac 11S MAX page says "Low noise at 55dB", and its comparison table lists "Noise Level: 55dB".
- Quiet gear. An image on the Auto-Empty C10 page prints 51db for "Quiet Gear Noise", beside a library and a cooker hood for scale.
- Routine cleaning. eufy's blog says the X10 Pro Omni has "noise levels below 60 decibels during routine cleaning".
None of these shares the table's label, so none ranks against it. Our explainer on why decibel ratings rarely compare across brands covers the same problem between makers.
Standard suction, vacuum only, quietest first (all from the comparison table on the Omni C20 page)
- Omni S2: 54 dB; 30,000 Pa.
- Omni C20: 54.22 dB; 7,000 Pa.
- Omni C28: 54.89 dB; 15,000 Pa.
Same row, printed as a ceiling
- Omni E25: under 55 dB, printed with a less-than sign; 20,000 Pa.
The ceiling tells you the E25 is no louder than 55 dB in this row, but not where it sits against the C28's 54.89. Suction does not predict the order either: the 30,000 Pa S2 is listed lowest and the 15,000 Pa C28 highest.
Two of our earlier guides need a note here. Our robot vacuum mop combo guide lists all four figures in this table too, the E25's printed with a less-than sign. Our quietest robot vacuums guide first found no figure for eufy's docked models, because the X10 Pro Omni page it read gives none; it now lists these four beside the other brands' figures.
Three current robots have no figure anywhere we could read: the Omni E35, the Omni E28 and the Omni C30. A eufy blog post on dogs and vacuums says robot vacuums "like the eufy e25, e28, or S1 Pro, usually run around 55 to 65 dB", a range for three robots with no mode named, which we do not count as a figure.
The dock is the part eufy leaves out
Every current eufy robot comes with a station that empties it, and most also wash and dry the mop. eufy prints no noise figure for any of them. The user guides give power ratings instead: the C20 guide rates its base station at 650W during dust collection, more than 16 times the robot's 40W, and the C28 and C30 guides rate their stations' dust collection at 650W and 500W. A power rating is not a noise figure, but it shows which part of the system works hardest.
eufy's own advice makes the station work more in a pet home. The FAQ on the out-of-stock X10 Pro Omni page tells pet owners to "increase the self-empty frequency to every 15 minutes and set the suction power to Turbo or Max", and the C30 FAQ says to switch to Turbo or Max for pet hair. Both are louder than the standard setting the table describes, and our pet robot vacuum guide covers that trade. Our decibel chart puts the robot figures next to everyday sounds.
What the gaps mean
Decibels are logarithmic: roughly every 10 dB sounds about twice as loud. The three exact eufy figures span 0.89 dB, from the S2 to the C28, and the E25 sits somewhere under 55. A gap under 1 dB is too small for most people to hear, and with no distance stated it may be no gap at all. Treat the four as a tie on noise and choose on suction, mop type and price. The steps that matter are to a stronger suction setting and to the station emptying, and eufy gives a figure for neither on any current model.
eufy's quiet features, by their real names
Quiet suction. The lowest of the suction levels the user guides name. eufy gives runtime for it, not noise: 260 minutes vacuuming only in Quiet on the Omni S2 against 179 in Standard, and on the C20 page, about 121 minutes on wooden floors with BoostIQ off against about 101 in Standard. A C20 image says it covers 950 sq ft of hard floor in Quiet Mode against 800 in Standard.
Do Not Disturb. The S2, E25 and C28 user guides say "During the Do Not Disturb period, RoboVac will remain silent, with automatic dust collection and voice notifications disabled", and the C30 guide adds scheduled cleaning to that list. The C20 guide does not mention it. Our apartment robot vacuum guide covers setting quiet hours so the station waits for morning.
BoostIQ. eufy's automatic carpet boost. The C20 user guide says "If the vacuuming noise caused by BoostIQ™ disturbs you, you can disable this feature."
Quiet Gear. The label on the out-of-stock C10's 51db figure. No current eufy page uses it.
Keeping a eufy quiet
eufy's C30 user guide says that if you notice "an abnormal burning smell, arcing noise, unusual loud noise, or reduced suction", you should stop using the robot and check its maintenance schedule. The C30 FAQ adds two habits that keep suction up: empty the dust bag regularly, since homes with heavy pet hair or dust "may need more frequent emptying for peak suction", and wipe buildup off the floating brush. For a robot making a strange noise, the FAQ on the 11S MAX page says to clean the brushes, check that the wheels are not stuck, remove hair and debris, then run the robot without the rolling brush and brush guard; if the noise remains, contact eufy support.
How eufy compares
This page ranks eufy models only against each other, and only inside eufy's one table. For how they sit among other brands, see our quietest robot vacuums guide. The closest label from another brand is ECOVACS's standard mode, which our ECOVACS page lists in dBA rather than plain dB, so even those two do not line up exactly. Our Narwal and Roborock pages do the same job for those makers, whose figures mostly describe quiet, mop-only or unnamed modes rather than standard suction. The units and modes differ, and nobody states a distance, so read dBA explained before setting one brand's figure beside another's.
Models we did not rank
eufy's US collection still lists three robots that were out of stock when we checked. The RoboVac 11S MAX page says "Low noise at 55dB", with no mode named; it has no self-empty dock at all, so it makes no emptying noise. The Auto-Empty C10 page says it cleans with "gear sound as low as 51dB", labeled "Quiet Gear Noise", and eufy's blog gives it a "51db noise rating". The X10 Pro Omni page and manual give no figure, though eufy's blog says it runs below 60 decibels during routine cleaning. If you find one of these on sale elsewhere, those are eufy's figures for it.
How we chose
We read every robot in eufy's US robot vacuum collection, opened each product page in full, read the text inside its images with character recognition and confirmed each figure by viewing it, and read the user guides linked from the pages or eufy's support site. We also read eufy's US blog posts on robot vacuums for model figures. We recorded each figure in eufy's words, with its mode and unit, grouped figures by that label, and ranked only within a group. We treated a model as current if eufy's US store showed it in stock. Prices are eufy's US list prices on October 10, 2026; each of the four ranked here also showed a coupon code below list.
Every figure here is eufy's own, from its US product pages, user guides and blog, and eufy states no measuring distance, floor or test room for any of them. Your floors, rugs and walls will change what you hear, and nothing here covers Turbo, Max or a station emptying, the louder parts of owning one. We did not measure any of these robots ourselves.
