Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.9 Best Quietest Dehumidifier | 33dB Noise Floor Tested

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The Waykar 34 Pint is the quietest pint-rated dehumidifier on this list, with a published minimum noise floor of just 33dB — quieter than a typical library. Its rotary compressor and advanced noise-reduction baffles produce a soft hum at low speed that virtually disappears into background white noise, making it ideal for bedrooms, nurseries, and home offices where even a 40dB hum would be distracting. The 0.62-gallon tank is compact, but the continuous drain hose option means you can run it overnight without interruption.

Certified as an Energy Star Most Efficient unit, the Waykar draws only 111-119 watts during operation — roughly the same as a single incandescent light bulb. The 2,000 square foot coverage rating is realistic for average humidity levels, though in very damp basements you may want to run it on high speed, which does increase noise modestly. The front-accessible tank makes emptying simple, and the included 3.3-foot drain hose connects easily to a floor drain or sink.

Customer reviews consistently praise the near-silent operation and low power draw, though a small number of users note a slight high-pitched background tone at certain speeds. The child lock feature is welcome for households with curious toddlers, and the auto-defrost function ensures reliable performance in cooler basements. For buyers who prioritize absolute silence over raw pint capacity, this is the clear winner.

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The Ludatido 80 Pint brings whole-home capacity into the quiet zone with a dedicated sleep mode that drops noise to 35dB — remarkable for a unit that can extract 80 pints of moisture per day. The 1.72-gallon water tank is generous enough to run through a full night without needing emptying, and the continuous drain hose connection allows indefinite operation in basements or crawl spaces. Four modes — Dry, Sleep, Fan, and 24-hour timer — let you tailor airflow and noise to each room and time of day.

Energy Star certification confirms the Ludatido uses roughly 40% less energy than non-certified units of similar capacity, which matters when running 24/7 in a damp basement. The chassis is compact for its class at 12.2 by 9.13 by 19.5 inches, and the four caster wheels roll smoothly over carpet and hard flooring. Build quality feels substantial, with reviewers noting it outperforms similar-priced units from big-box retailers.

One trade-off is the lack of Wi-Fi connectivity — you control everything via the front panel, which some smart-home enthusiasts may miss. The tank is rear-removable, which can be awkward in tight corners. But for pure large-space dehumidification at whisper-quiet levels, the Ludatido delivers an unusually compelling balance of capacity and silence that few competitors match at this price tier.

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The GoGuess 21 Pint is designed for small-space quiet, with a dedicated sleep mode that drops fan speed and dims the display to achieve a 40dB operating noise level — quieter than most conversations and suitable for a master bedroom or nursery. Its three intelligent modes (DEHU, TURBO, SLEEP) give you granular control over noise versus extraction speed, and the color-changing LED humidity display provides real-time feedback without requiring you to interact with the unit.

The 2.3-liter tank is smaller than ideal, but the included 3.28-foot drain hose enables continuous operation in bathrooms or RVs where you can route the hose to a sink or floor drain. The compressor is noticeably quieter than older piston-type units, and the 1,600 square foot coverage rating is realistic for moderate humidity environments. Auto-defrost protection ensures it won’t ice up in cooler basements during winter months.

Reviewers consistently mention that the GoGuess is quiet enough for nighttime use in a bedroom, with several noting it’s barely audible over a ceiling fan. The touch controls are responsive, and the child lock prevents accidental mode changes. The only common complaint is that the drain hose connection is on the back, limiting how close the unit can sit to a wall — but this is a minor ergonomic issue rather than a performance flaw.

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The PLUSCENT 21 Pint strikes an excellent balance between price, noise, and everyday usability. Its low-noise compressor is engineered specifically for bedroom and nursery environments, and the unit includes a 24-hour timer so you can schedule it to run during hours when noise matters least. The 1.5-liter tank is modest, but the included 39.4-inch gravity drain hose enables continuous drainage in bathrooms, laundry rooms, or any space with a floor drain.

Three operating modes — Dehumidification, Continuous, and Laundry — give flexibility beyond basic humidity control. The laundry mode, in particular, is useful for drying indoor-dried clothes faster without cranking the fan to annoyingly high speeds. The washable filter is easy to access and clean, and the 360-degree caster wheels make it genuinely portable across different rooms. Auto-defrost and auto-shutoff add peace of mind for unattended operation.

Customer feedback highlights the unit’s effectiveness at eliminating musty smells in unvented bathrooms and small basements. Multiple verified buyers note that the PLUSCENT is quieter than their previous dehumidifier, with one reviewer specifically mentioning it’s usable at night without disturbing sleep. The compact 6.7 by 9.5 by 15.89 inch footprint means it fits on shelves, countertops, or tucked into corners where larger units won’t go.

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The hOmeLabs 24 Pint Wi-Fi model brings app-based remote control to the quiet dehumidifier category, allowing you to adjust humidity targets, fan speed, and timer settings from anywhere. The 38dB whisper-quiet rating applies at low fan speed, and the compressor is well-insulated against vibration transmission. The unit covers up to 1,800 square feet, though real-world performance in very humid basements will be closer to 800-1,000 square feet at the 8-pint official rating (24 pint max under extreme conditions).

The included 3.3-foot drain hose enables continuous drainage, which is essential for long-term unattended use in basements or laundry rooms. The removable water tank has auto-shutoff to prevent overflow, and the washable filter is easy to maintain. Voice assistant compatibility through Amazon Alexa or Google Assistant adds convenience for smart home users who want to check humidity levels without walking to the unit.

Customer reviews are generally positive on noise levels, with many describing it as genuinely quiet for a compressor-based dehumidifier. The compact 7.5 by 11 by 16.1 inch size fits well on countertops or under tables. Some users note the plastic housing feels slightly less robust than metal-framed competitors, and the side air vent can be an issue if the unit is placed against a wall. But for app-controlled quiet operation in a mid-sized room, this is a strong contender.

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The Glowells 52 Pint is an Energy Star certified unit designed for large spaces up to 4,500 square feet, yet it manages to keep low-speed noise at a respectable 40dB. The advanced rotary compressor is significantly more compact than traditional piston compressors, freeing up internal space for better sound dampening. Three modes — DEHU, DRY, and CONT — let you prioritize noise, speed, or continuous operation depending on the situation.

The 6.56-foot drain hose is longer than most competitors, giving you more flexibility in routing water to a floor drain, sink, or window. The unit includes a removable washable filter, four universal casters, and side handles for easy movement across different rooms. Auto-defrost ensures reliable performance in cooler basement environments, and the intelligent humidistat automatically maintains your selected humidity level without constant adjustment.

Buyers consistently note that the Glowells quickly eliminates musty basement smells and visible dampness, with several calling it a game-changer for their below-grade spaces. The compact chassis is noticeably smaller than other 52-pint units, which is a practical advantage in tight crawl spaces or storage rooms. A small number of users mention that high-speed operation is louder than expected, but the low-speed setting is quiet enough for most living areas.

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The KNKA 80 Pint is a high-capacity workhorse that keeps noise in the 42-48dB range through optimized compressor tuning and vibration-reducing chassis design. That’s louder than the top picks on this list, but remarkably quiet for a unit that can extract 80 pints of moisture per day across 4,500 square feet. The built-in rainbow-woven handle and quiet 360-degree casters make it easy to move despite its substantial size.

A standout feature is the compatibility with an optional 2.64-gallon external tank (sold separately) that extends runtime between emptyings well beyond the 1.06-gallon internal tank. The 6.56-foot drain hose supports continuous drainage, and both the internal and external tanks have auto full alert and shut-off for safety. Three smart modes (AUTO, DRY, SETTING) plus a 12-hour timer give you fine control over operation scheduling.

Customer feedback emphasizes the KNKA’s effectiveness in large basements and laundry rooms, with many noting it pulls water noticeably faster than their previous units. The real-time humidity display with color-changing indicator is useful for at-a-glance monitoring. The main noise-related caveat is that the 42-48dB range is measured at normal operation — sleep mode is not explicitly advertised, and some users find the fan noticeable in quiet bedrooms.

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The DECIUU 100 Pint is designed for the heaviest moisture environments — basements, garages, crawl spaces, and laundry rooms up to 5,000 square feet. Its Energy Star Most Efficient certification means it uses significantly less electricity than non-certified units of similar capacity, which is critical when running 24/7 in a damp space. Three drainage options (internal 1.45-gallon tank, included 6.56-foot hose, or standard 3/4-inch garden hose) give you flexibility for permanent installation.

Noise-wise, the DECIUU is quieter than older high-capacity compressors but louder than the small-room champions on this list. Customer reviews consistently describe it as quieter than their previous dehumidifier, with many emphasizing that its noise is unobtrusive in a basement or garage setting. The intelligent humidity control automatically maintains your set level between 35% and 80% RH, and auto-defrost prevents icing in cooler conditions.

The build quality is solid with a steel-reinforced chassis and smooth-rolling casters, though at 32.8 pounds it’s not something you’ll want to carry up and down stairs daily. The hidden handle and 360-degree casters make rolling across flat floors easy. For homeowners dealing with severe basement moisture who still want reasonably quiet operation, the DECIUU delivers exceptional extraction power without the jet-engine noise of older high-capacity units.

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The hOmeLabs 120 Pint Wi-Fi model is the highest-capacity unit on this list, covering up to 7,000 square feet and extracting up to 120 pints per day under extreme humidity conditions. Its Wi-Fi connectivity and app-based controls let you monitor humidity levels and adjust settings from anywhere, which is invaluable for vacation homes or basements you don’t visit daily. The built-in pump compressor and Turbo mode (up to 218 CFM) deliver serious moisture-moving power.

Noise is the primary trade-off for this level of capacity. While customer reviews consistently describe it as quieter than older massive units, the 50-pint official rating (at 80°F/60% RH) means it runs at higher air volume than smaller models, producing more fan noise in the process. The unit includes a continuous drain outlet (hose not included) for hands-free operation, and auto-shutoff prevents overflow when the tank is full. The sleek white design and subdued fan are appreciated by users who need to keep the unit in visible living areas.

Buyers facing hurricane-level humidity or chronically damp basements praise the hOmeLabs for keeping humidity below 50% even during power outages when paired with a generator. The 41.2-pound weight and sturdy casters make it manageable to position, though it’s not portable in the same sense as the compact 21-pint units. For anyone who needs maximum moisture removal capacity and is willing to accept modest fan noise, this is the most powerful option available.