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.

The TABYIK 42oz dehumidifier is a compact, portable option that works well for small spaces like bathrooms, bedrooms, closets, and even RVs. Its 42-ounce water tank provides decent moisture removal capacity for areas up to about 320 square feet, which suits many small bathroom setups facing humidity and mold issues. It runs quietly thanks to advanced semiconductor technology, making it unobtrusive for daily use or overnight.

The unit uses just 40 watts, so it’s energy efficient compared to larger models. A helpful auto shut-off feature stops the device when the tank is full to prevent leaks, and an indicator light reminds you to empty it. It also has an automatic defrost mode, allowing it to work reliably in cooler temperatures. Since it relies on semiconductor cooling, it performs best in rooms warmer than 68°F with at least 60% humidity, so it’s less effective in colder or drier conditions.

This model balances quiet, compact design with decent moisture removal, making it a good fit for small bathroom spaces where noise and footprint matter, although it may not suit very cold or large damp areas.

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.