Best Battery Cool Mist Humidifiers of 2025

HoMedics Portable Ultrasonic Humidifiers are perfect for adding moisture to desktops, cars, or personal space with its visible, ultrasonic cool mist. The 8.5-oz. water tank provides up to 10 hours of runtime per fill when plugged in and up to 3.5 hours when using battery with Clean Tank Technology. There are 2 mist settings, continuous or intermittent, to best fit your space, and a built-in color-changing accent light with on/off for optional ambience. It's ultra-quiet for nighttime use and includes 3 wicks.

The TREVA Portable Cool Mist Humidifier is an ideal choice for bedrooms, nurseries, and living rooms. With a 2-liter capacity, it can run for up to 24 hours on one fill. The LED display panel provides quick access to mist options, battery power, and the timer. You can customize your cool with two misting modes: continuous or intermittent. The rechargeable battery can run for up to 7 hours on a single charge and 24 hours via USB power. The built-in water sensor ensures safety by automatically turning off power when water falls below adequate supply.

The AIRPROSSING Humidifier is designed for convenience and comfort. With its double nozzles, it enhances humidity levels effectively, providing relief from dry air for up to 10 hours on a full charge. The adjustable bracket allows you to position it anywhere, even in your car, making it versatile for various settings. Its user-friendly design features a quiet operation of under 30dB, ensuring it won't interrupt your daily activities or sleep. You can also choose between constant mist or timer settings, along with an adjustable LED night light for added ambiance in your space.

The Orfonbi Portable Cordless Plant Humidifier offers 5 spray modes, 10-hour wireless or wired operation, and a timer for safety. Made of BPA-free material and designed with a quiet whisper feature, it is perfect for baby rooms, bedrooms, offices, and travel. With a large 800ml water tank capacity, it can run up to 8 hours depending on the spray mode used.

The xuenair Humidifier Diffuser is designed to enhance your air quality wherever you are. With its compact size, it fits perfectly in your car’s cup holder, making it easy to take on the go. Its long-lasting battery allows for up to 14 hours of refreshing cool mist, ensuring you breathe easier during long trips. The dual-spray feature provides powerful mist options, letting you quickly improve the air around you. Plus, it operates quietly at just 20dB, so it won’t disturb your drive or your passengers' rest, making it ideal for both car and home use.

This portable mini humidifier is built-in battery powered and has a nozzle design that allows you to switch between four spray modes. It is easy to use with one button to turn on and switch the spray mode, and has a warm night light option that can be turned on and off with a double tap. The ultrasonic humidification technology produces small and uniform water mist particles that quickly humidify the air and doesn't make any noise when it's working. With a safety protection function that automatically shuts down when the water level is low, it is perfect for travel, car, desktop, office, bedroom, and suitable for dry skin and discomfort caused by dry air.

The plilogo Mini Humidifier is a versatile and compact option for your home or office. It features a generous 220ml capacity and uses advanced technology to produce a fine mist that helps prevent dry skin and reduces dust. You can choose between continuous spray for up to 3 hours or intermittent spray for 6 hours, giving you flexibility in how you use it. Safety is a priority with an automatic shut-off after 3.5 hours, ensuring peace of mind while it operates. Plus, its whisper-quiet function makes it ideal for bedrooms or quiet workspaces.

The Marspeeder Mini Humidifier is a portable solution for dry air, perfect for your bedroom, office, or while traveling. Its large spray capacity helps combat dryness, providing relief for your throat and skin. You can choose between continuous or intermittent mist modes, allowing up to 12 hours of moisture, which is great for enhancing your comfort. Additionally, the unit features a soothing 7-color LED light, adding a calming ambiance to your space. With an auto shut-off function for safety and whisper-quiet operation, this humidifier is ideal for maintaining a peaceful environment while you sleep or work.

The Airvana Portable Humidifier offers a refreshing solution for improving your indoor air quality. Its ultrasonic technology creates a fine cool mist, helping to enhance your hair, skin, and sleep while easing sinus discomfort. You can enjoy the freedom of a cord-free experience with its built-in rechargeable battery, allowing for up to 5 hours of use after just 3 hours of charging. Additionally, when plugged in, it can run continuously for up to 13 hours with a full tank of 2 cups of water. This makes it a convenient choice for any setting, whether at home or on the go.

Experience the convenience of the Besky Mini Humidifier. With two adjustable spray modes, it quickly boosts indoor humidity, combating dryness effectively. The 7-color LED light function creates a soothing atmosphere, perfect for those sensitive to light at night. Safety features like leak-proof design and automatic shut-off make it ideal for kids' rooms. Easy to operate with just one button, this humidifier provides round-the-clock comfort for work or rest.