Best Quiet Flush Toilets: Silent Flushing for Any Bedroom

The TOTO Drake II earns its reputation as the quietest high-performance toilet on the mainstream market by combining TOTO's Double Cyclone flush technology with a precision float-cup fill valve that refills with barely a whisper.

The Drake II uses two nozzle ports rather than the traditional under-rim rim holes used in older gravity-flush designs. Those two nozzles create a cyclonic water motion in the bowl that siphons waste powerfully without the splashing and gurgling that comes from a turbulent rim-flush. The result is a flush that owners consistently describe in reviews as "soft," "muffled," and "surprisingly quiet for how well it clears." The TOTO E-Max flush valve that drives the Drake II is a slow-closing design that seals gently rather than snapping shut, eliminating the clunk that some tower-flush valves produce at the end of the cycle.

The fill valve is equally considered. TOTO's float-cup valve on the Drake II family refills the tank in roughly 60 seconds with a low-frequency gurgle rather than the sharp hiss of a ballcock. Aggregate reviews from large-format retailers consistently place the Drake II in the 4.6 to 4.8 range with noise cited as a standout positive. If you want to push noise levels lower still, a Fluidmaster 400H or Korky 528 fill-valve upgrade costs under $15 and drops fill noise further. The 2-1/8-inch fully glazed trapway ensures first-flush reliability so a second flush, with its second noise event, is rarely needed.

The TOTO UltraMax II delivers the same Double Cyclone flush technology as the Drake II inside a seamless one-piece body, and that unified construction adds a secondary noise benefit: there is no tank-to-bowl joint that can rattle or vibrate.

In a two-piece toilet, water moving through the tank and bowl during flush and refill can cause very slight vibrations that transmit through the tank-to-bowl gasket and hardware. In a one-piece toilet, the tank and bowl are cast as a single ceramic unit, so there is nothing to rattle. Owner reviews of the UltraMax II specifically call out the "solid feel" of the flush, with no vibration audible from outside a closed bathroom door in multiple review comparisons. The UltraMax II also ships with TOTO's SoftClose seat on most retail SKUs, which eliminates seat-slam noise entirely.

The flush cycle on the UltraMax II is virtually identical to the Drake II in sound profile because the internal components are the same. Where it separates is in the refill stage: the tank on a one-piece model sits lower and holds slightly less water by volume, which means the fill cycle is marginally shorter, reducing total noise duration per flush event. For a master bathroom where the toilet is within earshot of the bed, that reduction in refill time matters. See our detailed best one-piece flushing toilets guide for how the UltraMax II ranks against Kohler, American Standard, and Woodbridge one-piece alternatives.

The Kohler Cimarron is the most widely recommended mid-range quiet toilet by U.S. plumbers, earning a 1,000-gram MaP score at 1.28 GPF alongside a Class Five flushing system that moves water through a 3-1/2-inch flush valve, one of the largest on the market, for a powerful yet surprisingly soft flush.

Kohler's Class Five flush system uses a large-diameter flush valve that opens wide and allows water to flood the bowl in a broad, low-velocity wave rather than a narrow high-velocity jet. Physics favors this approach for noise reduction: a wider flow at lower velocity is fundamentally quieter than a narrower jet moving faster, even when total water volume is the same. Owner reviews consistently describe the Cimarron's flush as "smooth," "not jarring," and "much quieter than the old toilet it replaced." The AquaPiston canister technology seals the flush valve from all 360 degrees, so there is no water bypass noise when the tank refills.

The AquaPiston canister also means the flush action is highly reliable; there is no rubber flapper to wear out unevenly or lift partially. Partial flapper lifts on conventional designs cause a weak flush and a second noise event. The Cimarron's canister virtually eliminates that failure mode. For apartments, rentals, or guest bathrooms where full replacement of a pressure-assist unit is the goal, the Cimarron is among the most cost-effective quiet upgrades available. Our best Kohler toilets guide ranks it alongside the Highline and Santa Rosa for a full Kohler comparison.

The original TOTO Drake is the toilet that made TOTO's G-Max and E-Max flush systems famous in North America, earning a maximum 1,000-gram MaP rating with a flush that TOTO owners consistently describe as the quietest they have owned.

The Drake's G-Max system predates the Drake II's Double Cyclone, so it uses a single siphon jet rather than two nozzles. It is quieter than virtually all pressure-assist toilets and most competing gravity toilets, but it is marginally louder than the Drake II during the flush cycle because a single concentrated jet produces slightly more turbulence than two distributed nozzles. For the 1.28 GPF E-Max Drake, the gap narrows further and most owners cannot distinguish the two by ear through a closed door. The key is to specify the 1.28 E-Max SKU if quiet operation is the priority; the older 1.6 G-Max is noticeably louder during its longer flush cycle.

The original Drake remains the best-selling TOTO model in North America by volume and carries one of the most extensive owner review records of any toilet, which gives high confidence that the quiet-flush reputation reflects real-world performance rather than a lab anomaly. For a full head-to-head breakdown, see our best TOTO toilets guide, which covers the Drake, Drake II, UltraMax II, and Aquia IV side by side.

The TOTO Aquia IV is the quietest dual-flush toilet available from a major brand, combining TOTO's DYNAMAX TORNADO FLUSH technology with EPA WaterSense certification at both the 0.8 GPF and 1.28 GPF settings.

TOTO's DYNAMAX TORNADO FLUSH on the Aquia IV uses two nozzle ports positioned to create a cyclonic bowl-cleaning motion, similar in principle to the Double Cyclone but optimized for the lower water volumes of a dual-flush design. The result is a flush that owner reviews consistently describe as smoother and quieter than competing dual-flush toilets from American Standard or Glacier Bay. The 0.8 GPF partial flush is whisper-quiet because so little water moves; the 1.28 GPF full flush is comparable to the Drake II in noise level.

The Aquia IV is especially appropriate where water bills are a secondary concern alongside noise. Because the 0.8 GPF liquid-waste flush is essentially inaudible to someone in an adjacent room, it works well in apartments, condos, or any home where night-time bathroom use is a frequent issue. Our best dual flush toilets guide covers how the Aquia IV compares to the Kohler Wellworth and American Standard H2Option for households choosing on water savings alone.

The American Standard Cadet 3 earns a maximum 1,000-gram MaP score at 1.28 GPF and uses a PowerWash rim with a 3-inch flapper valve that moves water in a wide, calm wave, producing a flush that is substantially quieter than the older 1.6 GPF ball-float toilets it typically replaces.

The Cadet 3 is among the most widely installed toilets in North America, which gives it one of the largest owner review data sets of any model. The noise pattern in aggregate reviews is clear: buyers replacing older 1.6 GPF toilets consistently describe the Cadet 3 as much quieter, both during flush and during refill. The step-down from a 1.6 GPF cycle to a 1.28 GPF cycle inherently reduces flush noise because less water is moving, and the 3-inch flush valve moves that water more calmly than the older 2-inch flappers common on pre-2000 gravity toilets.

The fill valve on entry-level Cadet 3 SKUs is functional but not silent. If noise is a top priority, replacing it with a Fluidmaster 400A or Korky 528 at installation is a worthwhile $12 upgrade that drops refill noise noticeably. The Cadet 3 is not as quiet as the TOTO Drake II in either flush or fill, but it costs significantly less and is available for same-day pickup at most major home centers, making it the best option for a fast, affordable quiet upgrade. For full details, our American Standard Cadet 3 review covers installation notes and long-term reliability patterns.

The Woodbridge T-0001 is a fully skirted one-piece gravity toilet that earns a 1,000-gram MaP score at 1.28 GPF and, thanks to its flush-to-floor skirted design, eliminates the exposed trapway surface that can amplify flush vibration on traditional two-piece toilets.

The Woodbridge T-0001 is the most widely reviewed skirted one-piece toilet below the TOTO price tier, with consistent owner commentary noting quiet operation as a positive. The skirted trapway serves a double purpose: it is easier to clean, and it completely encloses the trapway in ceramic rather than leaving it exposed to act as a resonating surface during the flush. The one-piece construction eliminates the tank-to-bowl vibration pathway entirely, similar to the UltraMax II mechanism. Owner reviews at major retailers note that the flush is "quiet" and "smooth," though some owners report that the stock fill valve can hiss during the final 10 seconds of refill, a common finding on entry-level fill valves that an inexpensive replacement resolves immediately.

For buyers remodeling a bathroom and choosing fixtures for their long-term aesthetic as well as function, the Woodbridge T-0001 represents a compelling middle tier: genuine 1,000-gram MaP performance, a skirted quiet-flush design, and a modern rectangular look that costs significantly less than the TOTO UltraMax II for essentially the same flushing physics.

The Swiss Madison St. Tropez brings a European-influenced minimalist profile to the quiet-flush category with a one-piece skirted design, an 800-gram MaP score at 1.28 GPF, and consistently positive owner feedback on low flush noise relative to its compact footprint.

The Swiss Madison St. Tropez is aimed at buyers for whom the visual quietness of a minimal, skirted one-piece toilet is as important as acoustic quietness. Its 800-gram MaP score means it is reliable for most households but may require a second flush with very heavy waste loads, so it suits light-to-moderate use bathrooms, guest baths, or powder rooms better than primary family bathrooms with heavy daily use. The flush itself is soft and low in frequency because the gravity mechanism moves water gently through the skirted bowl, and the SoftClose seat prevents the seat-slam noise that often accompanies late-night bathroom visits.

Fill-valve noise is the primary variable to watch on the St. Tropez, as Swiss Madison uses third-party valve components that vary across production runs. Most owner reviews describe the refill as quiet, but a subset reports a faint hiss in the final seconds of the refill cycle. Replacing the fill valve with a Fluidmaster 400H resolves this in virtually all reported cases. For buyers comparing Swiss Madison across the full lineup, see our best Swiss Madison toilets guide.