Excess humidity can make your home feel stuffy, promote mold growth, and damage furniture or walls—especially in basements, bathrooms, and laundry rooms. Many people searching for the best dehumidifier under $100 need an affordable, compact solution that effectively reduces dampness without breaking the bank. These budget-friendly units are ideal for small to medium spaces but must balance performance, noise, and convenience features.
To find the top picks, we analyzed over 70 models, focusing on real-world performance, user reviews, and key specs like tank capacity, noise level, and drainage options. Our recommendations prioritize dehumidifiers with reliable auto shut-off, quiet operation (under 40dB), and solid moisture removal rates—up to 135oz per day—for lasting comfort. We also weighed extra features like timers, ambient lighting, and washable filters to deliver the best value. Keep reading to discover the top-rated dehumidifiers under $100 that deliver real results.
Best Options at a Glance


TABYIK 35 OZ Dehumidifier
Best Quiet Operation
- 35 oz (1000ml)
- 16 oz/24h
- 28dB
- Yes
- 280 sq. ft

Windangel 44oz Portable Dehumidifier
Best for Small Spaces
- 44oz (1.3L)
- 215 sq.ft
- 32oz (950ml)
- 3 Modes
- 4 Timers

SPACEKEY 95 OZ Dehumidifier
Best for Large Rooms
- 95 oz.
- 40 oz/day
- 1000 sq. ft.
- 20-40 dB
- 7″ colors

Dual-Core Semiconductor Dehumidifier
Best with Drain Hose
- 85 oz/day
- 800 sq.ft
- Below 30 dB
- 2.5L
- 8/16/24H

Best Dehumidifier Under $100 Review
How to Choose the Right Dehumidifier Under $100
When tackling excess moisture in your home, a dehumidifier can be a lifesaver. But with so many options under $100, knowing what to look for can feel overwhelming. Here’s a breakdown of key features to consider, helping you find the best fit for your needs.
Tank Capacity & Drainage Options
The size of the water tank dictates how often you’ll need to empty it. For smaller rooms or short-term use, a 35-44oz tank might suffice. However, for larger spaces or consistently humid environments, opting for a dehumidifier with a 63oz or even a 95oz tank will save you frequent trips to the sink. Beyond capacity, consider drainage options. Many units offer a removable tank, but some also include a drain hose connection. A drain hose allows for continuous drainage, eliminating the need for manual emptying – a huge convenience for basements or long-term operation.
Dehumidification Performance & Room Size
Dehumidifiers under $100 typically utilize Peltier (semiconductor) technology. While not as powerful as compressor-based models, they are energy-efficient and quiet. Pay attention to the moisture removal capacity, usually measured in ounces or milliliters per day (e.g., 40oz/day or 1182ml/day). Higher numbers indicate faster dehumidification. This is directly tied to room size. Most under-$100 dehumidifiers are best suited for small to medium-sized rooms (up to 1000 sq ft), or very specific areas like bathrooms or closets. Don’t expect these to tackle whole-house humidity issues.
Noise Level & Operating Modes
A noisy dehumidifier can be disruptive, especially in bedrooms or offices. Look for models specifically highlighting “quiet operation” or “sleep mode.” Decibel (dB) ratings are helpful – lower numbers indicate quieter operation (below 40dB is generally considered quiet). Many dehumidifiers offer multiple operating modes – ‘Normal’ for everyday use, and ‘Sleep’ mode for quieter operation. Some even have a ‘Performance’ mode for more aggressive dehumidification. Choosing a model with adjustable modes gives you flexibility.
Additional Features to Consider
- Auto Shut-Off: A crucial safety feature that automatically turns off the dehumidifier when the tank is full, preventing overflows.
- Auto Defrost: In colder environments, frost can build up on the cooling coils. Auto defrost prevents this, ensuring continuous operation.
- Timer: Allows you to schedule operation, saving energy and ensuring the dehumidifier runs only when needed.
- Air Filter: Some models include a washable air filter, helping to remove dust and allergens from the air.
- Ambient Lighting: While not essential, some dehumidifiers offer color-changing lights for a decorative touch.
Dehumidifier Comparison (Under $100)
Product | Capacity (oz) | Noise Level (dB) | Auto Shut-Off | Timer Options | Drain Hose Option | Special Features |
---|---|---|---|---|---|---|
AMEIFU 135 OZ Dehumidifier | 135 | 20 (Sleep Mode) | Yes | 8 (1H, 2H, 4H, 8H, 12H, 24H, 48H, 72H) | No | 7 Colored Ambient Lights |
1800ML Small Dehumidifier for Home | 1800ml (63oz) | <40 (Sleep Mode) | Yes | 5 (24H, 48H, 72H, 96H, Continuous) | No | 10 Colors Night Light |
Windangel 44oz Portable Dehumidifier | 44 | Not specified | Yes | Continuous, 24/48/72 Hours | No | 10 Color Mood Light |
TABYIK 35 OZ Dehumidifier | 35 | 28 | Yes | Not specified | No | 7-Color Ambient Light, Quiet Operation |
SPACEKEY 95 OZ Dehumidifier | 95 | 20-40 | Yes | Not specified | No | 7-Color Ambient Lighting, Dual Modes |
KeepGlad 98 OZ Dehumidifier | 98 | 30-40 | Yes | 4/8/12H | Yes | Washable Filter, Timer Preset, Adjustable Fan Speed |
Dual-Core Semiconductor Dehumidifier | 2.5L (approx 85oz) | <30 (Sleep Mode) | Yes | 8, 16, 24 Hours | Yes | 7-Color LED Night Light |
95OZ Dehumidifier for Home | 95 | Not specified | Yes | Not specified | No | 7-Color Ambient Light |
How We Tested & Analyzed Dehumidifiers Under $100
Our recommendations for the best dehumidifier under $100 aren’t based on subjective impressions; they’re rooted in data analysis and comparative research. Given the price point, physical product testing is limited to examining user reviews and reported performance data across multiple retail platforms (Amazon, Walmart, Home Depot). We prioritize models with a high volume of verified purchase reviews – over 500 whenever possible – to identify consistent trends in performance and reliability.
We analyze user feedback focusing on reported moisture removal rates in various room sizes, correlating this with manufacturer-stated specifications (like daily dehumidification capacity). We cross-reference this information with independent testing data from sources like Consumer Reports (when available for comparable models) and specialized HVAC blogs.
Comparative analysis centers on features outlined in our Buying Guide, specifically tank capacity vs. room size recommendations, noise levels (dB), and the prevalence of reported issues like auto-shutoff failures. We also investigate reported longevity and customer service experiences to assess overall value. Our selection process favors dehumidifiers demonstrating a balance between user-reported effectiveness, feature set, and positive feedback regarding long-term durability within the under-$100 price bracket. We also track price fluctuations to ensure our recommendations remain current and accessible.
FAQs
What size room is a dehumidifier under $100 effective for?
Most dehumidifiers under $100, utilizing Peltier technology, are best suited for small to medium-sized rooms (up to 1000 sq ft), bathrooms, closets, or other specific areas. They are not generally powerful enough for whole-house humidity control.
What is the difference between tank capacity and continuous drainage?
Tank capacity refers to the size of the internal water reservoir. A larger capacity means less frequent emptying. Continuous drainage, available on some models, allows you to connect a hose for uninterrupted operation, ideal for basements or long-term use, avoiding manual emptying of the dehumidifier.
How loud are these dehumidifiers?
Noise levels vary. Look for models advertising “quiet operation” or “sleep mode” and check the decibel (dB) rating. Below 40dB is generally considered quiet. Many newer models offer very quiet operation, especially in sleep mode.
Are these dehumidifiers energy efficient?
Yes, Peltier-based dehumidifiers under $100 are generally energy-efficient compared to compressor-based models. They consume less power, making them a cost-effective solution for humidity control.
The Bottom Line
Ultimately, finding the best dehumidifier under $100 hinges on your specific needs and space. Consider the room size, desired features like auto-shutoff and a timer, and prioritize models with positive user reviews regarding performance and reliability.
While these units won’t match the power of more expensive options, they offer a practical and affordable solution for managing moisture in smaller areas. By carefully evaluating your requirements and the features discussed, you can confidently choose a dehumidifier that effectively improves your indoor air quality and comfort.