Honeywell Humidifier HUL570B Manual

The Honeywell HUL570B is a cool mist humidifier designed to add moisture to dry air in medium to large rooms. It features a 1-gallon tank capacity, adjustable humidity control, a wicking filter system, a quiet operation mode, an auto-shutoff function when empty, an easy-to-clean design, and an essential oil tray option. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 1-Gallon Water Tank, Humidifier Base, Wick Filter, Control Knob, Mist Outlet, Essential Oil Tray, Power Cord.

Installation & Setup

Unpack and inspect all parts. Place on a flat, stable, waterproof surface.

1. Remove all packaging materials from the humidifier and tank.
2. Install the wick filter: Remove from package, soak in cool water for 15 minutes, then insert into the base slot.
3. Fill the tank: Remove tank from base, turn upside down, unscrew cap, fill with cool, clean water (not hot water).
4. Place tank on base: Ensure tank is seated properly and aligned with the base.
5. Plug into a standard 120V AC outlet.

WARNING! Place humidifier on a level, waterproof surface away from electronics and furniture. Do not use near walls or curtains.

First-Time Use

Power on the humidifier; adjust settings as needed.

1. Turn the control knob to the desired setting (Low for quiet operation, High for maximum moisture output).
2. Adjust the 360° mist nozzle to direct mist away from walls and furniture.
3. Monitor room humidity; adjust knob as needed for comfort.
4. For aromatherapy: Add a few drops of essential oil to the optional tray (do not add oil directly to water tank).

CAUTION! Use only clean, cool water. Do not add medications or chemicals to the water tank. Unplug before moving or cleaning.

Specifications

• Model: HUL570B Cool Mist Humidifier.
• Tank Capacity: 1 Gallon (3.8 Liters).
• Room Coverage: Up to 400 sq. ft. (Medium to Large rooms).
• Run Time: Up to 24 hours on Low setting.
• Mist Output: Adjustable – Low, Medium, High.
• Filter Type: Demineralization/Wick Filter (replace every 1-2 months).
• Noise Level: Quiet operation, suitable for bedrooms.
• Power Source: 120V AC, 60Hz.
• Dimensions: 13.5" H x 10.5" W x 10.5" D.
• Weight: 5.5 lbs (empty).

Controls and Operation

Control Knob: Turn clockwise to increase mist output (Low → Medium → High). Turn counter-clockwise to decrease or turn off.

Indicator Light: Blue LED illuminates when unit is plugged in and powered. May blink or turn off if tank is empty or improperly seated.

Operation Tips: For best performance, place humidifier in center of room or at least 2 feet from walls. Use in rooms with doors closed for faster humidity increase. Adjust output based on room size and dryness level.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup. Clean every 1-2 weeks with regular use.

1. Unplug the humidifier from the electrical outlet.
2. Remove the water tank and empty any remaining water.
3. Clean tank: Use a soft cloth or brush with a mixture of mild soap and warm water. Rinse thoroughly.
4. Clean base: Wipe interior with a damp cloth. Do not submerge base in water.
5. Descale if needed: Use a solution of white vinegar and water (1:1 ratio) to remove mineral deposits. Rinse well.
6. Dry all parts completely before reassembly.

Tip: Always use clean, cool water to extend filter life and reduce cleaning frequency.

Filter Replacement

The wick filter should be replaced every 1-2 months, or when discolored or stiff.

1. Turn off and unplug the humidifier.
2. Remove the water tank from the base.
3. Pull out the old wick filter from the base slot.
4. Soak the new filter in cool water for 15 minutes before installation.
5. Insert the new filter into the base slot, ensuring it sits flat and fully immersed.
6. Reassemble tank and base, then plug in and resume use.

WARNING! Do not operate the humidifier without a filter. Using a worn-out filter can reduce performance and increase mineral dust.

Using Essential Oils

Optional aromatherapy tray allows use of essential oils.

1. Ensure humidifier is unplugged and turned off.
2. Place a few drops (3-5) of essential oil into the designated tray (if included).
3. Do NOT add oils directly to the water tank, as this can damage the unit and void warranty.
4. Reassemble and operate as normal. The mist will carry a light scent.
5. Clean the oil tray regularly with soap and water to prevent residue buildup.

CAUTION! Use only 100% pure essential oils. Do not use fragrance oils or chemicals. Overuse may cause irritation.

Care & Storage

When not in use for extended periods, prepare humidifier for storage.

1. Unplug and empty all water from tank and base.
2. Clean and dry all parts thoroughly as described in Maintenance section.
3. Remove and discard the old wick filter.
4. Store unit in original box or a dry, cool place.
5. Do not store with a wet filter or water in tank to prevent mold.

CAUTION! Never store the humidifier with water inside. Always clean and dry before storage.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Honeywell International Inc. For support, visit www.honeywellhumidifiers.com or contact 1-800-332-1110. This product is covered by a limited one-year warranty. Use only as directed in this manual.

Troubleshooting

Reset: Unplug for 1 minute, then restart. Ensure filter is properly installed.

Service: 1-800-332-1110; www.honeywellhumidifiers.com