Best Office Cool Mist Humidifiers in 2026

ULTRASONIC COOL MIST HUMIDIFIER: Breathe easier with this powerful, easy-fill cool mist humidifier. Use it continuously for up to 25 hours on low, or up to 12 hours on high, for quick relief from dry air problems all year long.

COLD & CONGESTION RELIEF: High and low-speed settings, combined with an adjustable 360° mist nozzle that directs moisture right where you need it, help you consistently balance and regulate the humidity in your home during any dry months for relief from coughing, colds, congestion, sore throat, sinus issues, allergies, and dry skin.

AMPLE ROOM COVERAGE: Safely moisturize the air in spaces up to 250 sq. ft. This ultrasonic humidifier holds up to 1.5L of water; making it great for adding moisture to bedrooms, offices, nurseries, living rooms, or any medium-sized space that needs extra humidity.

A MUST-HAVE FOR PARENTS: Help your children breathe easier throughout the night with this 2-in-1 cool mist humidifier and night light. Thoughtfully designed and rigorously tested, it’s perfect for your baby’s nursery, kid’s bedroom, or any space up to 250 sq ft where you need extra humidity.

QUIET ENOUGH FOR BEDTIME: The large 1.5L tank quietly moisturizes rooms for up to 25 hours on low and 12 hours on high to create ideal humidity levels that help ease congestion, cold symptoms, dry skin, coughs, and encourage better sleep. Additionally, customize their comfort using the 2 mist settings and 360° mist nozzle to direct humidity where it’s needed most.

SOFT GLOW NIGHT LIGHT: Create a soothing environment for your baby with the optional, soft blue glow from the night light that gently lulls your little one to sleep during naps or bedtime

COOL MIST HUMIDIFIER: The PureGuardian H965 ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin. The easy to fill 1 gallon tank is ideal for 320 sq. ft. rooms and runs up to 70 hours

SILVER CLEAN PROTECTED TANK: Silver Clean fights the growth of slimy mold and on the surface of the water tank-a common problem with traditional humidifiers.

AROMATHERAPY TRAY: The aromatherapy tray option helps create a relaxing environment with your favorite essential oil. Oils are not included. Create a better home environment and optimize your comfort with an ultra-quiet, soothing cool mist

COOL MIST HUMIDIFIER: The PureGuardian H940 Ultrasonic Cool Mist Humidifier guards against problems caused by dry air in the home and is perfect for those suffering form colds, allergies and dry skin and provides 350 sq. ft. coverage

ULTRASONIC TECHNOLOGY: The H940 disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep. Silver Clean fights the growth of mold and on the surface of the water tank

GREAT FOR SMALL ROOMS: The .5 gallon tank provides up to 30 hours of run time and is perfect for small sized rooms. The slender desktop design features an optional night light, great for kids rooms

Cool mist humidifier: the pureguardian h910bl ultrasonic cool mist humidifier guards against dry air in the home and is perfect for those suffering form colds, discomfort and dry skin. Optimize your comfort with soothing glow and high cool mist settings

ULTRASONIC TECHNOLOGY: The H910BL disperses a soothing, cool mist into the air and is ultra quiet, making it ideal to have on while you sleep; Silver Clean fights the growth of dirt on the surface of the water tank

Great for small rooms: the .21 gallon tank provides up to 14 hours of run time and is perfect for 210 sq. Ft. Rooms; the slender desktop design is perfect for a nursery or desktop features an optional night light, great for kids rooms

COOL MIST HUMIDIFIER: The PureGuardian H920BL ultrasonic cool mist humidifier guards against dry air in the home and is perfect for those suffering dry skin. The H920 has a run time of up to 10 hours, and covers 210 sq. ft.

SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights on the surface of the water tank-a common problem with traditional humidifiers

ULTRASONIC TECHNOLOGY: The H920BL disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep. The compact size makes it great for tabletops or bedside nightstands

COOL MIST HUMIDIFIER: The PureGuardian H3200BAR ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, discomfort and dry skin. The easy to fill 1.5 gallon tank covers 440 sq. ft. rooms and runs up to 100 hours

SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights the growth of slim on the surface of the water tank-a common problem with traditional humidifiers

ULTRASONIC TECHNOLOGY: The H3200BAR disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep

WARM AND COOL MIST HUMIDIFIER: The PureGuardian H1510 ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, and dry skin; The easy fill 1.5 gallon tank covers 630 sq. ft. rooms and runs up to Hundred hours

SILVER CLEAN PROTECTED TANK: Silver Clean fights the growth of slimy container and on the surface of the water tank a common problem with traditional humidifiers

ULTRASONIC TECHNOLOGY: The H1510 disperses a soothing, cool mist into the air and is ultra quiet, making it ideal to have on while you sleep; The compact size makes it great for tabletops or bedside nightstands

WARM & COOL MIST HUMIDIFIER: The PureGuardian H5450BCA ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin. The easy fill 2 gallon tank covers 380 sq. ft. rooms and runs up to 100 hours

SILVER CLEAN PROTECTION & UV-C LIGHT: A UV-C Light reduces germs to emit a cleaner mist while Silver Clean Protection is embedded in the humidifier tank to fight the growth of mold and mildew on the surface of the water tank

ULTRASONIC TECHNOLOGY: The H5450BCA disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep

COOL MIST HUMIDIFIER: The PureGuardian H1175 ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds dry skin. The 1.5 gallon top fill water tank covers 390 sq. ft. and runs up to 90 hours

SILVER CLEAN PROTECTED TANK: Silver Clean fights the growth of slimy on the surface of the water tank-a common problem with traditional humidifiers. Ultrasonic technology is ultra-quiet making it ideal to have on while you sleep

AROMATHERAPY TRAY: The aromatherapy tray option helps create a relaxing environment with your favorite essential oil. Oils are not included. Create a better home environment and optimize your comfort with an ultra-quiet, soothing cool mist

WARM AND COOL MIST HUMIDIFIER: The PureGuardian H7550 ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin; The easy to fill 1.32 gallon tank covers 570 sq. ft. rooms and runs up to 90 hours

SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights the growth of slimy mold and mildew on the surface of the water tank a common problem with traditional humidifiers

ULTRASONIC TECHNOLOGY: The H7550 disperses a soothing, cool mist into the air and is ultra quiet, making it ideal to have on while you sleep; A smart mist sensor monitors the level of humidity in the room and adjusts to your selected level

WARM & COOL MIST HUMIDIFIER: The PureGuardian H8000B ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin; The easy to fill 2 gallon tank covers 500 sq. ft. rooms and runs up to 120 hours

SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights the growth of slimy mold and mildew on the surface of the water tank a common problem with traditional humidifiers

ULTRASONIC TECHNOLOGY: The H8000B disperses a soothing, cool mist into the air and is ultra quiet, making it ideal to have on while you sleep; A smart mist sensor monitors the level of humidity in the room and adjusts to your selected level

[3-IN-1 FOR BACTERIOSTATIC]: This humidifier tank cleaner is composed of three types of materials: Zeolite Balls, Nano Silver Ion Ceramic Balls, and Microporous Alloy An-tiba-c teril balls, and made with different ingredients without harsh substances, to effectively restrain the g e-r-ms reproducing in the water.

[KEEP YOUR HUMIDIFIER AND WATER CLEAN]: This humidifier tank cleaning cartridge can reduce the substances on the surface. Also, its features to inhibit the growth of dirt as well as help to avoid the buildup of slime in the water. HSIAMEN humidifier cleaning cartridge is used for drinking water filters to avoid unpleasant odors and tastes.

[FIT MOST HUMIDIFIERS]. 0.9" is well-designed to ensure this humidifier cartridge can pass through a tank with an opening for a 0.5 gallon or greater humidifier. So it can be used in most humidifiers, e.g. ultrasonic / evaporative / steam, and cool / warm mist humidifiers. Also, it is compatible with most brands of humidifier, including small / mini / portable / large / top-fill humidifiers.

Tank is treated with Silver Clean Protection to help fight the growth of mold and mildew on the surface of the water tank

Ultrasonic technology is ultra-quiet when running and provides a soothing cool mist

Saves money with no evaporating pads, filters or wicks to replace or clean

3 IN 1 DESIGN: Includes Himalayan Salt Rock Lamp, Ultrasonic Humidifier, and Essential Oil Aromatherapy Tray

TANK CAPACITY: Features a 0.32 gallon tank, the compact table top design allows for easy transportation

AROMATHERAPY TRAY: The optional aromatherapy tray creates a relaxing atmosphere by adding a few drops of aromatherapy oil into the tray

Quick relief from dry air with ultrasonic Technology that immediately disperses mist higher into the air

Enhance comfort and sleep better with soothing warm or cool mist, while making life pleasant for those with colds, allergies and dry skin

Fights the growth of mold and mildew on the surface of the water tank with silver Clean Protection

SMALL TO MEDIUM ROOM HUMIDIFIER: Crane Adorables Mini Ultrasonic Humidifier features an easy-to-clean, detachable bottom fill tank that holds a half gallon of water− perfect for humidifying indoor spaces up to 250 square feet for 15 hours

ADJUSTABLE SETTINGS: Optional filter slot and variable controls make it easy to set the best humidity level for your room; Simply adjust as needed for multi-purpose use as a plant humidifier, baby humidifier, bedroom humidifier, or a children's room humidifier

HSA FSA ELIGIBLE ITEM: Your shopping list of FSA HSA approved products only gets healthier with our soothing humidifiers and steam inhalers that help fight cold and flu symptoms in your home or office

Intelligent Constant Temperature Humidification - This bedroom humidifier has a built-in sensitive sensing device that can sensitively and quickly determine the humidity of the air environment, adjust the humidity in real time and humidify intelligently. Perfect for pregnant women, babies, the elderly, sensitive people, etc., so you will feel fresh air and no worries in any season.

Dual Nozzle Design Humidifier - This cool mist humidifier has three humidification modes: continuous humidification, indirect humidification and automatic humidification. Dual nozzle design, large mist volume, microporous nano spray, no condensation of water beads, no wet desk, no wet environment, you can choose the right spray mode according to your environment and space.

Silver Ionized Water Tank - The small humidifier is equipped with a large 2L water tank with 80ml/h spray volume, which can keep working for up to 24 hours when filled with water. Water is filled from the top without opening the lid, and the water level can be seen by the front transparent water level meter. The water tank contains silver ions, which can keep the water clean, and more importantly, the silver ions have no side effects, safe and healthy.

FFG Ultrasonic Humidifier: Adopt advanced ultrasonic mist technology, can increase the moisture content in the air and moisten the dry air.Contact with water parts using materials containing silver ions, effectively purifies the water in the tank to make the air fresher.Experience alleviation of congestion, sinus headaches, snoring, and dry skin. An ideal gift for Christmas, New Year and other festivals

Humidity Under Your Control: Turn on the automatic mode, one key automatic constant humidity the room to maintain at 50-60 humidity! Human physical and thought are in good condition at suitable humidity.It offer 3 different mist output levels to suit your needs. Features a powerful high mist output up to 8 oz (250ml) per hour. Our cool mist humidifier works with rooms up to 360 sq.ft²/33m².

The FFG Cool Mist Humidifier is the ideal tool for taking a large room from uncomfortably dry to comfortably perfect! Large-capacity 3L water tank allows for 10 to 32 hours of continuous use; You can enjoy whole night sleep, farewell to frequent adding water. The Humidifier features an automatic shut-off safety feature that turns off the humidifier when when it runs out of water preventing damage to the unit and keep you safe.

TOP FILL: .80 Gallon tank provides up to 30 hours of run time, great for small to medium sized rooms. Run time is based off of running the unit on low setting and cool mist, also depends on atmospheric conditions.

ULTRASONIC TECHNOLOGY: Quietly disperses a fine mist providing relief from the dry air

EASY TO USE: Featuring 2 speed mist control and top-fill tank and low water indicator when it's time to refill the tank

COOL MIST HUMIDIFIER: The PureGuardian H940 Ultrasonic Cool Mist Humidifier guards against problems caused by dry air in the home and is perfect for those suffering form colds, allergies and dry skin and provides 350 sq. ft. coverage

ULTRASONIC TECHNOLOGY: The H940 disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep. Silver Clean protection fights the growth of mold and mildew on the surface of the water tank

GREAT FOR SMALL ROOMS: The .5 gallon tank provides up to 30 hours of run time and is perfect for small sized rooms. The slender desktop design features an optional night light, great for kids rooms

As Ultrasonic Humidifier: This cool mist humidifier adopts advanced ultrasonic atomization technology, which can rapidly increase the moisture content in the air, moisturize dry air, and moisturize your skin, eyes and sinuses, and prevent congestion or seasonal allergy. Using materials containing silver ions to contact water parts can effectively purify the water in the water tank and provide healthier water mist.

As Diffuser: This non filter humidifier is designed with an essential oil tray, so it can also be used as a diffuser. If you drop the essential oil into the tray, the humidifier will emit a pleasant fragrance, reduce your fatigue and dizziness, and provide you with additional relaxation and comfort.

Practical and Convenient: This vaporizer humidifier is equipped with remote control, more convenient. 3L large capacity water tank, which can be used for up to 32 hours. Say goodbye to frequent water filling, and it is applicable to 360 square feet/33 square meters of rooms. Suitable for families, bedrooms, offices, nurseries, pets, plants, etc

As Ultrasonic Humidifier: This cool mist humidifier adopts advanced ultrasonic atomization technology, which can rapidly increase the moisture content in the air, moisturize dry air, and moisturize your skin, eyes and sinuses, and prevent congestion or seasonal allergy. Using materials containing silver ions to contact water parts can effectively purify the water in the water tank and provide healthier water mist.

As Diffuser: This non filter humidifier is designed with an essential oil tray, so it can also be used as a diffuser. If you drop the essential oil into the tray, the humidifier will emit a pleasant fragrance, reduce your fatigue and dizziness, and provide you with additional relaxation and comfort.

Practical and Convenient: This vaporizer humidifier is equipped with remote control, more convenient. 3L large capacity water tank, which can be used for up to 32 hours. Say goodbye to frequent water filling, and it is applicable to 360 square feet/33 square meters of rooms. Suitable for families, bedrooms, offices, nurseries, pets, plants, etc

COOL COMFORT - The PureGuardian H955 ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin. The easy to fill 1 gallon tank is ideal for medium rooms and runs up to 30 hours

SILVER CLEAN PROTECTED TANK: Silver Clean fights the growth of slimy mold and on the surface of the water tank-a common problem with traditional humidifiers.

AROMATHERAPY TRAY: The aromatherapy tray option helps create a relaxing environment with your favorite essential oil. Oils are not included. Create a better home environment and optimize your comfort with an ultra-quiet, soothing cool mist

2 Pack of Pure Guardian H1510 Humidifiers

Large 1.5 gallon tank provides up to 100-hours of run time and is great for medium sized rooms. Note: Run time is based off of running the unit on low speed, also depends on atmospheric conditions.

Ultrasonic Technology quietly disperses a fine mist providing relief from the dry air

WARM & COOL MIST HUMIDIFIER: The PureGuardian H5225WCA ultrasonic cool mist humidifier 2 pack guards against dry air in the home, perfect for those with colds, allergies and dry skin. The easy fill 2 gallon tank covers 560 sq. ft. rooms and runs up to 100 hours

SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights the growth of slimy mold and mildew on the surface of the water tank-a common problem with traditional humidifiers

ULTRASONIC TECHNOLOGY: The H5225WCA disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep.

WARM & COOL MIST HUMIDIFIER: The PureGuardian H5225WCA ultrasonic cool mist humidifier guards against dry air in the home, perfect for those with colds, allergies and dry skin. The easy fill 2 gallon tank covers 560 sq. ft. rooms and runs up to 100 hours

SILVER CLEAN PROTECTED TANK: Silver Clean Protection fights the growth of slimy mold and mildew on the surface of the water tank-a common problem with traditional humidifiers

ULTRASONIC TECHNOLOGY: The H5225WCA disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep.

Country of Origin: CHINA

The Package Length of the product is 18.75 inches

The Package Width of the product is 12.25 inches

TOP FILL: 1.6-Gallon tank provides up to 100 hours* of run time, great for medium to large sized rooms

ULTRASONIC TECHNOLOGY: quietly disperses a fine mist providing relief from the dry air

EASY TO USE: Featuring an easy fill top-fill tank, 3 speed mist control and low water indicator when it's time to refill the tank

2 Mist Settings: Enjoy moisturized air with ultrasonic cool mist on the high or low setting

Large Tank for 25-Hour Operation: The 1.5 liter tank allows for overnight use as long as 25 hours

Night Light Setting: An optional night light setting allows for a calming effect while sleeping