10 Best Small Bathroom Dehumidifier For High Humidity And Mold 2025 in the United States

The hOmeLabs 1,500 Sq. Ft. WiFi-Enabled Dehumidifier is a solid choice for those dealing with high humidity and mold in small to medium-sized bathrooms. It can remove up to 22 pints of moisture per day, making it effective for improving air quality in spaces up to 1,500 square feet. The WiFi-enabled smart functionality is a great convenience, allowing you to control the dehumidifier remotely, which is perfect for maintaining the desired humidity levels without constant manual adjustments.

This model also features a modern, portable design with built-in wheels and handles, enhancing its portability and ease of relocation within your home. Additionally, its quiet operation ensures minimal disturbance to your daily activities or sleep. On the downside, weighing 36.3 pounds, it might be slightly heavy for some users to move around. Energy efficiency is a plus, as it runs continuously with an automatic shut-off when the tank is full, or it can be set up for continuous drainage.

The washable filter adds to its ease of maintenance, though regular cleaning is necessary to ensure optimal performance. For a bathroom with high humidity and mold issues, this dehumidifier offers effective moisture removal with added conveniences such as remote control and portability.

This dehumidifier is a solid choice for small bathrooms and other rooms up to about 1000 sq.ft., thanks to its 98 oz (around 1.2L per day) moisture removal capacity. It uses advanced dual semiconductor technology which works quietly—especially important in small spaces or bedrooms—and has a sleep mode keeping noise below 30 dB. The unit is fairly compact and lightweight (around 5.8 pounds and slim dimensions), making it easy to move around or place on a shelf.

It features a smart digital panel that shows temperature and humidity at a glance, plus three modes to match your needs, including an automatic mode that keeps humidity under 45%. The automatic shutoff when the tank is full is a helpful safety feature that prevents spills and lets you run it unattended. The 7-color LED lights add some ambiance but might not be essential in a bathroom setting. While the energy efficiency isn't detailed, semiconductor-based dehumidifiers generally consume moderate power, so it should be reasonable for typical home use.

With a strong customer rating and a 3-year warranty, this unit delivers reliable and quiet performance. It is ideal for someone looking to reduce humidity and prevent mold in small, humid spaces without complicated installation or noisy operation.

The NineSky Dehumidifier is a solid choice for small bathrooms or similar spaces where moisture and mold are a concern. It can remove about 1 liter (roughly 2 pounds) of water from the air each day, which suits rooms up to 1000 sq.ft, though small bathrooms are usually much smaller, so this capacity is adequate. Its tank holds about 800 milliliters (around 27 ounces), so expect to empty it fairly often unless you use it in short bursts. The device is compact and lightweight, making it easy to move and fit on a bathroom counter without taking up much space.

One of the standout features is its quiet operation, which is great if you want to run it overnight without disturbance. It also offers two modes: a high-speed option for fast moisture removal and a quiet night mode. The automatic shut-off when the tank is full adds safety and convenience, so you don’t have to constantly watch it. However, it lacks a continuous drainage option, meaning you’ll need to empty the tank manually each time.

The unit uses semiconductor condensation technology, which is energy-efficient and doesn’t require refrigerants. This keeps power use low, helping reduce electricity costs. Maintenance is straightforward since there’s no complex filter to clean or replace; a simple wipe-down is usually enough. A nice extra is the 7-color LED night light, which can add ambiance to your bathroom or bedroom, though this is more of a bonus than a necessity.

This dehumidifier is well-suited for small, humid bathrooms where quiet, compact, and efficient moisture control is needed. Its main limitation is the smaller water tank and lack of continuous drainage, which could mean more frequent emptying. But if you want a simple, portable device that quietly keeps humidity in check, the NineSky is a practical option.