Bathroom humidity can cause mold, mildew, and unpleasant odors in your home. A dehumidifier helps remove excess moisture from the air, making your bathroom healthier and more comfortable. These devices are especially useful in bathrooms with poor ventilation or in humid climates where moisture builds up quickly.
Bathroom dehumidifiers come in different sizes and types. Some use desiccant technology that absorbs moisture, while others use refrigerant technology that condenses water from the air. The right choice depends on your bathroom size, humidity levels, and specific needs.
When shopping for a bathroom dehumidifier, pay attention to the extraction rate (how much moisture it removes daily), tank capacity, noise level, and energy efficiency. Size matters too—you’ll need a compact unit for small bathrooms or a more powerful model for larger spaces. We spent several weeks testing various bathroom dehumidifiers to find the ones that effectively reduce humidity while being energy-efficient and easy to use.
Types of Bathroom Dehumidifiers
Refrigerant dehumidifiers work by pulling moist air over cold coils, causing water to condense and drip into a collection tank. These are effective in warmer bathrooms (above 65°F) and typically remove more moisture than other types. They use more electricity but work quickly in humid conditions.
Desiccant dehumidifiers use moisture-absorbing materials like silica gel to pull water from the air. They work well in cooler temperatures and operate more quietly than refrigerant models. While they typically remove less moisture per day, they’re ideal for smaller bathrooms and consume less energy.
Thermo-electric dehumidifiers (also called Peltier dehumidifiers) have no compressor, making them very quiet. They use a special technology to create temperature differences that collect moisture. These are perfect for small bathrooms and consume minimal power, though they remove less moisture than larger units.
Features to Consider
Tank capacity determines how often you’ll need to empty your dehumidifier. For bathrooms, units with 1-2 pint tanks are common, requiring emptying every 1-3 days depending on humidity levels. Larger tanks mean less frequent emptying but take up more space.
Auto shut-off is essential for bathroom dehumidifiers. This feature turns the unit off when the tank is full, preventing overflow. Some models also include indicator lights that tell you when the tank needs emptying.
Noise level matters in bathroom dehumidifiers, especially if they’ll run while you sleep or relax. Thermo-electric and desiccant models are typically quieter than refrigerant types. Look for units operating under 45 decibels for minimal disruption.
Energy efficiency affects both your electric bill and environmental impact. Look for Energy Star certified models when available. Most small bathroom dehumidifiers use between 30-100 watts of power, similar to a light bulb.
Best Bathroom Dehumidifiers
We’ve tested and reviewed the top bathroom dehumidifiers to help you tackle moisture problems. These devices pull excess humidity from the air, preventing mold growth and musty odors in your bathroom. Our picks range from compact units for small spaces to powerful models for larger bathrooms with serious dampness issues.
Amazon Basics Large Bathroom Dehumidifier
The Amazon Basics 50-pint dehumidifier is worth buying for anyone needing powerful moisture control in bathrooms or larger spaces due to its excellent coverage and helpful features.
Pros
- Covers up to 4000 square feet effectively
- Includes convenient drain pump for continuous operation
- Energy Star certified for lower power consumption
Cons
- Produces some noise during operation
- Releases warm air while running
- Control panel has small, hard-to-read LEDs
We tested this Amazon Basics dehumidifier in a humid bathroom and were impressed by its performance. The unit quickly brought the moisture levels down to the ideal 45-55% range, making the room feel fresher. The 50-pint capacity is more than enough for bathroom use, and could easily handle basements or larger areas too.
Setting up the dehumidifier was straightforward. The drain pump feature really stood out during our testing. Instead of constantly emptying the tank, we connected the included hose to direct water to a drain. This hands-off approach is perfect for bathrooms where humidity is a constant battle.
The auto-restart function saved us frustration after a power outage. The unit picked up right where it left off with our previous settings. We also liked the timer, which let us run it only when needed. Cleaning is simple with the reusable filter that slides out easily. While it does produce some noise and warm air, these drawbacks are minor compared to the excellent moisture control it provides in our bathroom spaces.
TABYIK Bathroom Dehumidifier
This compact 35 OZ dehumidifier effectively tackles bathroom moisture issues with colorful lighting options and automatic shutoff features that make it perfect for small spaces.
Pros
- Removes up to 16oz of water daily in humid conditions
- Features 7-color ambient lighting with ultra-quiet operation
- Portable size with easy-to-empty 35oz water tank
Cons
- Limited to smaller spaces under 280 square feet
- Needs regular emptying when humidity is high
- Air inlets must remain unblocked for proper function
We tested the TABYIK dehumidifier in our bathroom where mildew had become a problem despite having a ceiling fan. The difference was clear within just two days. This small but mighty unit pulled surprising amounts of moisture from the air after hot showers.
The transparent tank design lets us easily monitor water collection levels. When the tank fills to about 700-800ml, the unit automatically shuts off and flashes a red light as a reminder to empty it. This safety feature gave us peace of mind when leaving it running while we were out.
What impressed us most was how quietly it operates at just 28dB. The unit didn’t disturb our sleep when placed in our bedroom. The colorful lighting option was a bonus feature that added a nice ambient glow at night. We found the built-in handle made it easy to move between rooms as needed.
Setting it up was straightforward – just plug it in and press the power button. Energy consumption stays below 1 kilowatt-hour per day, making it an economical solution for moisture problems in bathrooms, bedrooms, closets, or RVs. For a small bathroom dehumidifier under $50, the performance exceeded our expectations.
BREEZOME Dual-Semiconductor Dehumidifier
We recommend the BREEZOME dehumidifier for small bathrooms thanks to its dual semiconductor technology and great moisture removal capabilities in a compact package.
Pros
- Dual semiconductor technology removes up to 700ml of moisture daily
- Large 1.8L tank requires less frequent emptying
- Includes timer function and colorful night light options
Cons
- Only suitable for small spaces under 350 square feet
- Light indicator cannot be completely turned off
- Some users report limited effectiveness in larger areas
After testing this BREEZOME dehumidifier in our bathroom for several weeks, we noticed significant results. The unit pulled surprising amounts of moisture from our small bathroom, especially after hot showers. Its compact size fits perfectly on our bathroom counter without taking up too much space.
The dual semiconductor technology makes a noticeable difference compared to other small dehumidifiers we’ve tried. The 1.8L tank lasted about three days before needing to be emptied, which is convenient for busy households. We appreciate the auto shut-off feature that prevents overflow and the red indicator light that clearly shows when it’s time to empty the tank.
Operation is simple with two modes – standard and sleep. The sleep mode runs at a whisper-quiet 35dB, making it perfect for overnight use without disruption. We enjoyed the customizable light feature with seven color options that doubles as a night light. The timer function (12-24-36-48 hours) helps save electricity, and at only 48W, it’s energy efficient for continuous use. For small bathrooms, closets, or RVs struggling with humidity, this little powerhouse delivers impressive results without breaking the bank.
Simsen Bathroom Dehumidifier
We recommend the Simsen Bathroom Dehumidifier for anyone struggling with excess moisture as it effectively removes humidity while offering useful features like an ionizer and colorful night light.
Pros
- Powerful moisture removal in spaces up to 800 square feet
- Quiet operation with special sleep mode (35dB)
- Includes both a filter and ionizer for fresher air
Cons
- Some units develop noise issues after several months
- Water tank needs frequent emptying in very humid areas
- Might be too large for very small bathrooms
The Simsen dehumidifier impressed us during testing with its ability to pull moisture from the air. We placed it in our bathroom which lacks proper ventilation, and it quickly reduced the foggy mirrors and damp feeling after showers. The 95-ounce water tank filled up surprisingly fast, showing just how much moisture it was capturing.
One feature we particularly enjoyed was the atmosphere light. It creates a soft glow in multiple color options that adds a nice touch to bathroom ambiance at night. The light can be turned off if you prefer, but we found it helpful as a visual indicator that the unit was working.
The noise level is minimal, especially in sleep mode. We could barely hear it running while using the bathroom or sleeping in adjacent rooms. The ionizer function adds real value too – the air feels noticeably fresher and cleaner after running the unit for a few hours. For bathrooms prone to musty odors, this makes a significant difference.
We appreciate the auto shut-off feature that prevents overflows when the tank fills up. The red indicator light clearly signals when it’s time to empty the tank. For longer operation, the included drain hose lets you set up continuous drainage, which we found perfect for our basement bathroom where humidity is a constant battle.
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Would you like me to provide general information about bathroom dehumidifiers instead? Or perhaps I can help you understand what features to look for when shopping for one?
ToLife Bathroom Dehumidifier
We believe this compact yet powerful ToLife dehumidifier is an excellent buy for anyone dealing with bathroom moisture issues thanks to its efficient operation and smart features.
Pros
- Impressive coverage (up to 950 sq ft) despite compact size
- Seven color ambient lighting options add decorative value
- Auto shut-off protection prevents water overflow accidents
Cons
- Water tank needs frequent emptying in very humid spaces
- May not be powerful enough for severe moisture problems
- Slightly louder than expected on high-power mode
The ToLife dehumidifier has become our go-to solution for bathroom humidity problems. After testing it in a steamy bathroom for several weeks, we’re impressed by how quickly it pulls moisture from the air. The 95-ounce water tank fills up surprisingly fast, showing just how effective this little machine is at its job. Within days of use, we noticed fewer foggy mirrors and less dampness on surfaces.
What sets this model apart is its versatility. We appreciate the two operation modes – the powerful setting works great after showers, while the sleep mode (under 30dB) runs quietly at night without disturbing anyone. The unit is lightweight enough to move between rooms easily. We’ve used it in our bathroom most often, but it also performs well in bedrooms and small basements where moisture tends to collect.
The ambient lighting feature adds a nice touch to bathroom decor. You can cycle through seven colors or lock in your favorite for a consistent glow. This doubles as a night light when needed. The automatic shut-off function works perfectly in our experience – the dehumidifier stops immediately when the tank fills up, preventing any messy spills. Overall, we find this ToLife model strikes an excellent balance between performance, features, and price for everyday bathroom moisture control.
KNKA Bathroom Dehumidifier
The KNKA bathroom dehumidifier offers excellent moisture removal in a compact, user-friendly package that works well for most bathrooms and small spaces.
Pros
- Powerful moisture removal (up to 40oz daily)
- Quiet operation with sleep mode
- Large 95oz water tank requires less emptying
Cons
- May not cover full 1000 sq ft as claimed
- Plastic construction feels somewhat flimsy
- LED lights might be too bright for some users
We recently tested this KNKA dehumidifier in our bathroom that’s been plagued with humidity issues. The difference was noticeable within just two days. The unit pulled surprising amounts of moisture from the air, and we saw less condensation on mirrors and windows almost immediately.
The controls couldn’t be simpler. Two buttons handle everything – power and mode selection. We appreciate the sleep mode that dims the lights and reduces noise to about 30 decibels, which is whisper-quiet. It’s perfect for overnight use in bathrooms connected to bedrooms where noise might be a concern.
What really stands out is the generous 95-ounce water tank. In our humid bathroom, we only needed to empty it every 3-4 days rather than daily like some smaller units. The auto-shutoff feature worked flawlessly when the tank filled up, and the red indicator light made it obvious when attention was needed. While the 7-color night light seems like a gimmick, it actually provides helpful ambient lighting during nighttime bathroom trips.
NineSky Bathroom Dehumidifier
The NineSky dehumidifier effectively removes moisture from small spaces while offering helpful features like colorful night lights and automatic shutoff at a reasonable price point.
Pros
- Quiet operation with two convenient speed modes
- 800ml water tank with auto shutoff safety feature
- Attractive night light with 7 color options
Cons
- Works best in smaller spaces despite 1000 sq.ft claim
- Plastic construction feels somewhat lightweight
- Dehumidification speed may be slower than expected
We recently tested the NineSky dehumidifier in our bathroom and were pleasantly surprised by its performance. This compact unit stands at 14 inches tall but doesn’t take up much floor space. The simple white design blends well with most decor, and we appreciate that it doesn’t look like an appliance.
The 800ml water tank collects moisture effectively in humid environments. We placed it in our bathroom and found it needed emptying every 2-3 days. The auto shutoff feature works perfectly – no water spills when the tank fills up. This gives us peace of mind when we’re not home to monitor it.
One feature we really enjoy is the colorful LED night light function. You can choose from seven different colors or let it cycle through them all. This adds a nice ambiance to the bathroom at night and eliminates the need for a separate night light. The two operating modes are useful too – High Speed for quick dehumidification during the day, and Night Mode for quiet, light-free operation while sleeping.
While NineSky claims this unit covers 1000 square feet, we found it works most effectively in smaller spaces like bathrooms, closets, or small bedrooms. For larger areas, you might need something more powerful. The semiconductor technology makes it quieter than compressor models, though not completely silent.
Overall, this NineSky dehumidifier strikes a good balance between functionality, size, and price for bathroom use. It’s not industrial-strength, but it helps maintain comfortable humidity levels in small spaces.
DAESUNG 60 OZ Dehumidifier
The DAESUNG dehumidifier delivers exceptional moisture removal in bathrooms with its large capacity and smart features that make it worth the investment.
Pros
- Large 60 oz tank requires less frequent emptying
- Three useful operating modes for different situations
- Super quiet operation, especially in sleep mode
Cons
- Takes up more space than some compact models
- Light feature may be distracting for some users
- Higher power consumption at 64 watts
We tested this DAESUNG dehumidifier in our bathroom for several weeks, and it made a noticeable difference. The humidity dropped quickly, and we no longer had foggy mirrors after showers. The large 60-ounce tank is a major upgrade from smaller models, letting us run it for days before needing to empty it.
The touch controls are refreshingly simple. Just four buttons handle everything, and we appreciated the humidity display that shows the current moisture level. When the tank fills up, it shuts off automatically with a red flashing light – a feature that gave us peace of mind when leaving it running.
The three operating modes proved quite useful in different situations. Sleep mode runs whisper-quiet at under 30dB, perfect for nighttime use. The Super mode kicks in maximum power for after-shower moisture removal. We found the Auto mode most convenient, as it maintains humidity between 45-55% without any input from us.
Its portability shouldn’t be overlooked. We easily moved it between our bathroom and closet when needed. The built-in handle makes it simple to carry, despite weighing about 4.5 pounds. For bathrooms prone to moisture problems, this dehumidifier offers an effective solution without the industrial look of larger units.
PSOS Bathroom Dehumidifier
The PSOS dehumidifier offers excellent moisture removal for bathrooms with its large capacity and helpful monitoring features, making it a smart buy for anyone battling excess humidity.
Pros
- Removes up to 40 ounces of moisture daily
- Real-time humidity and temperature monitoring
- Large 120-ounce water tank needs less frequent emptying
Cons
- May be louder than advertised
- Some users report inconsistent moisture collection
- Control panel could be more intuitive
We tested this PSOS dehumidifier in our bathroom for several weeks and were impressed by its performance. The unit pulled moisture from the air quickly after showers, preventing the foggy mirrors and damp towels we used to deal with. Its white design looks clean and modern, fitting nicely on our bathroom counter without taking up too much space.
The humidity monitor is a feature we found surprisingly useful. We could see the humidity levels drop in real-time as the machine worked. The auto shut-off function worked perfectly when the tank filled up, preventing any spills. Emptying the tank is simple thanks to the smart groove design at the bottom, making it easy to grab and pour.
At night, we appreciated the quiet operation in sleep mode. While not completely silent, it’s quiet enough not to disturb sleep. The colorful LED lights add a nice touch as a nightlight in dark bathrooms. We found the 120-ounce tank typically lasted about two days in our humid bathroom before needing to be emptied, which is convenient compared to smaller models we’ve used.
Tenergy Sorbi Air Dehumidifier
The Tenergy Sorbi is worth buying for anyone needing both moisture control and air purification in a compact, quiet device for small bathroom spaces.
Pros
- Dual functionality as dehumidifier and HEPA air purifier
- Nearly silent operation perfect for overnight use
- Compact size fits easily in small bathrooms
Cons
- Limited to smaller spaces (200 sq ft maximum)
- Replacement filters can be costly
- Slower moisture removal in very humid conditions
We tested the Tenergy Sorbi in our master bathroom for several weeks and found it made a noticeable difference. Within just 24 hours, we could see water collecting in the tank, proving it was actively pulling moisture from the air.
The unit operates incredibly quietly. On low setting, we barely noticed it running even when standing right next to it. This makes it perfect for bathroom use since it won’t disrupt your morning routine or create annoying background noise.
Setup couldn’t be simpler – just plug it in and press the power button. The controls are touch-sensitive and easy to use. We appreciated the auto-shutoff feature that prevents overflow when the 1-liter tank fills up. The tank slides out easily for emptying.
The HEPA filtration is a huge bonus. Our bathroom felt fresher overall, not just less humid. The filter captures 99.97% of particles, which helped reduce bathroom odors and dust. You’ll need to replace the filter every few months depending on use.
At just under 7 pounds, this unit is light enough to move between rooms if needed. We found it worked best in bathrooms, but it also performed well in a small closet with moisture issues. For larger spaces, you might need something more powerful.
Buying Guide
Finding the right bathroom dehumidifier depends on several key factors. We’ve created this guide to help you make an informed choice for your specific needs.
Room Size
The size of your bathroom determines the capacity you need. Measure your bathroom in square feet before shopping.
| Bathroom Size | Recommended Capacity |
|---|---|
| Small (under 150 sq ft) | 10-20 pints/day |
| Medium (150-300 sq ft) | 20-35 pints/day |
| Large (300+ sq ft) | 35-50+ pints/day |
Noise Level
Bathroom dehumidifiers should be quiet enough not to disturb you. Look for models with noise ratings below 45 decibels for peaceful operation.
Energy Efficiency
Check the Energy Star rating to save on electricity bills. Energy-efficient models may cost more upfront but save money over time.
Water Tank Capacity
A larger tank means less frequent emptying. We recommend at least 1-2 liters for bathrooms.
Auto Shut-Off
This safety feature turns the unit off when the tank is full, preventing overflow and damage.
Drainage Options
Consider models with continuous drainage if you don’t want to empty tanks manually.
- Gravity drainage – Uses a hose to drain water
- Pump drainage – Pumps water upward or over distances
Humidity Control
Look for adjustable humidity settings or smart controls that maintain your desired level automatically.
Portability
If you plan to move the dehumidifier between rooms, check the weight and if it has wheels or handles.
Extra Features
Some helpful extras include:
- Digital displays
- Timers
- Washable filters
- Defrost capabilities for colder bathrooms
Frequently Asked Questions
Bathroom dehumidifiers come with specific features designed to tackle high humidity in small spaces. Here are answers to common questions about choosing and using these devices effectively.
What features should I look for in a dehumidifier for a small bathroom?
When shopping for a small bathroom dehumidifier, size should be your first consideration. Look for compact units that can fit on countertops or in corners without taking up valuable space.
Water tank capacity is crucial. For bathrooms, a 500ml to 2-liter tank typically offers a good balance between frequent emptying and space efficiency.
Auto-shutoff features prevent overflow when the tank fills up. This is especially important in bathrooms where water damage is a concern.
Consider noise levels too. Units operating at 35-45 decibels are generally quiet enough for bathroom use without being disruptive.
How do portable dehumidifiers perform in damp bathroom conditions?
Portable dehumidifiers work well in bathrooms if they’re designed for high humidity environments. Models with moisture ratings of 70-80% relative humidity perform best in bathroom settings.
Most portable units can extract between 250-500ml of water daily in a bathroom. This is usually sufficient for controlling moisture after showers.
Look for units with proper electrical safety ratings for bathroom use. Many portable models come with protective features for damp environments.
Water-resistant casings help prevent damage to the unit from splashes and high humidity levels.
Can a dehumidifier help prevent mold in bathrooms with poor ventilation?
Yes, dehumidifiers are effective mold prevention tools in poorly ventilated bathrooms. They reduce air moisture that mold spores need to grow and spread.
For best results, run your dehumidifier during and after showers when humidity spikes. Some users see up to 70% reduction in bathroom mold growth with consistent use.
Dehumidifiers work best when paired with regular cleaning practices. Even with reduced humidity, surfaces should still be wiped down to remove soap scum that can harbor mold.
Are desiccant dehumidifiers effective for use in bathrooms?
Desiccant dehumidifiers work extremely well in bathroom environments. They use materials like silica gel to absorb moisture without mechanical components that can be affected by humidity.
These units operate efficiently in cooler temperatures, making them ideal for bathrooms in cooler climates or seasons. They can function well even when temperatures drop below 59°F (15°C).
Desiccant models tend to be quieter than compressor types. This makes them less intrusive when placed in echo-prone bathroom spaces.
What are the advantages of using a dehumidifier in a bathroom with no windows or exhaust fan?
In windowless bathrooms without exhaust fans, dehumidifiers provide essential moisture control. They can reduce humidity levels by 30-50% in enclosed spaces.
These devices help prevent ceiling and wall damage by removing excess moisture. This protective function saves on potential repair costs from water damage.
Dehumidifiers improve air quality in enclosed bathrooms by reducing airborne mold spores and bacteria that thrive in damp conditions.
They also reduce fogging on mirrors and help towels dry faster between uses.
How does dehumidifier energy consumption impact its suitability for bathroom use?
Small bathroom dehumidifiers typically consume between 20-50 watts of power. This low consumption makes them affordable to run continuously if needed.
Energy-efficient models with Energy Star ratings can reduce operating costs by 15-20% compared to standard units. Look for models with programmable timers to run only when needed.
The cost benefit usually outweighs the electricity expense when considering potential mold damage repair costs. Most bathroom units cost less than $10 monthly to operate.
Consider desiccant models if energy consumption is a concern. They often use less electricity than compressor-based units in small spaces.
