Introduction

Introducing the Honeywell Cool Mist Humidifier HUL570 is designed to provide soothing moisture to your home, enhancing comfort and alleviating dry air symptoms. This ultrasonic humidifier features a sleek design, making it a stylish addition to any room. It operates quietly, ensuring minimal disruption while delivering a fine mist that helps maintain optimal humidity levels. With adjustable settings and a large water tank, it is ideal for bedrooms and living spaces. The exact cost of the HUL570 is $69.99.

ACCESSORIES

To help you get the most out of your humidifier experience, consider these helpful accessories:

Demineralization Cartridge
Helps prevent white dust in hard water areas. Honeywell HDC500

Humidity Monitor
Displays relative humidity and room temperature so you can maintain a comfortable humidity level in your home Honeywell HHM10, HHM10B, H10C

Protec Cleaning Ball or Fish
Keeps your humidifier cleaner longer. Kills up to 99% of odor causing bacteria. Protec PC1V1, PC2V1, PC1F For Canada only: Protec PC-1C

Visible cool mist

With ultrasonic humidification, a nebulizer vibrates at ultrasonic frequency, breaking water droplets into fine mist
Be careful not to over-humidify: Exceeding a 60% humidity level can cause condensation around unit, on walls and on surfaces; if this occurs, open a door and turn the humidifier off or to a lower setting

Humidity Level

The ideal indoor humidity level is 40-60%
Use a Honeywell Humidity Monitor (not included) to check your indoor humidity level

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Demineralization Cartridge

A demineralization cartridge, designed to fit in this humidifier, is available to help reduce white dust in areas with hard water.

Honeywell Specifications

The Cool Mist Humidifier HUL570 boasts several key features that make it a reliable choice:

Capacity: 1-gallon water tank
Run Time: Up to 18 hours on a single fill
Humidistat: Adjustable moisture output control
Noise Level: Quiet operation
Filter-Free Design: No need for replacement filters
Easy Cleaning: Removable parts for simple maintenance
Power Consumption: Energy-efficient design

IMPORTANT SAFETY INSTRUCTIONS

READ AND SAVE THESE SAFETY INSTRUCTIONS BEFORE USING THIS HUMIDIFIER
When using electrical appliances, basic precautions should always be followed to reduce the risk of fire, electrical shock and injury to people, including the following:

The humidifier should always be placed on a firm, flat, waterproof surface at least four feet (1.2m) away from bedside, 12 inches (30 cm) from the wall and out of reach of patients, children and pets. Be sure the humidifier is in a stable position and the power cord is away from heated surfaces and out of the way to prevent the humidifier from being tipped over.
The humidifier should not be left unattended in a closed room since air could become saturated and leave condensation in front of unit, on walls and furniture. Leave room door partly open. Do not aim Mist Outlet directly at children, walls or furniture.
Before using the humidifier, extend the cord and inspect for any signs of damage. Do not use the unit if the cord has been damaged. Do not operate with power cord coiled or with twist tie in place.
The humidifier has a polarized plug (one blade is wider than the other) as a safety feature. This plug will fit into a polarized outlet only one way. If the plug does not fit fully into the outlet, reverse the plug. If it still does not fit, contact a qualified electrician. Do not attempt to defeat this safety feature.
CAUTION: To avoid fire or shock hazard, plug the humidifier directly into a 120V AC electrical outlet. To avoid risk of fire, shock or personal injury do not use an extension cord or power strip.
The humidifier should always be unplugged and emptied when not in operation or while being cleaned. Shut off and unplug humidifier before moving. Do not move or tilt humidifier while it is in operation. Plug and unplug unit with dry hands. Never pull by cord.
Do not operate the humidifier without water. Turn off and unplug unit when tank is empty.
Humidifier requires regular cleaning. Refer to and follow cleaning instructions.
Do not operate outdoors; this humidifier is intended for indoor residential use only.
Do not cover or insert objects into any openings on the unit.
Do not block intake or output vents.
Do not attempt to repair or adjust any electrical or mechanical functions on this humidifier. Doing so will void your warranty
Do not place in direct sunlight, high temperature areas or near computers or sensitive electronic equipment.
Do not touch the nebulizer while the unit is plugged in, as burns could result.
Do not add any medications (e.g. liquid inhalant, Vicks VapoSteam® or oils) into Mist Outlet, Water Reservoir or Water Tank.
SAVE THESE INSTRUCTIONS

How It Works

Water is released into the Reservoir when the Float Paddle engages the Plunger at the bottom of the Water Tank. A Nebulizer vibrates at ultrasonic frequency, breaking the water into a fine mist. The mist is quietly propelled by a fan up a vertical Mist Chamber to the Mist Outlet where the cool, visible mist enters the room. This humidifier will shut off when the water level is low or when the tank is removed from the base.

Components

Mist Outlet
Outlet Gasket
Outlet Cover
Tank Handle
Tank Opening
Tank Cover
Water Tank
Auto Shut-Off Float
Housing
Base
Power Knob
Mist Chamber
Demineralization Cartridge (included in some models)
Plunger
Tank Gasket
Float Paddle
Air Outlet
Water Reservoir
Nebulizer

Description

The HUL570 is known for its sleek and compact design, making it easy to place in any room without taking up too much space. The humidifier uses a wicking filter to draw water from the tank and convert it into a cool mist, which is then released into the air. This process helps maintain optimal humidity levels, creating a more comfortable living environment. The device is also easy to operate with a simple dial control that allows you to adjust the moisture output according to your needs.

The filter-free design of the HUL570 eliminates the need for frequent filter replacements, reducing maintenance costs and hassle. Additionally, the removable water tank and other parts are dishwasher safe, ensuring thorough cleaning and hygiene.

SETTING UP YOUR HUMIDIFIER

Unpack the Humidifier

Keep this instruction manual for reference.

Remove packaging materials. Locate Float Paddle (A) and set aside. This is required for operation.
Locate the Demineralization Cartridge (B) (included with some models) and set it aside. This is optional for operation.
Remove the twist tie and extend the power cord. Place on a firm, level, water-resistant surface a minimum of 12 inches (30 cm) from walls.

Float Paddle Installation required for a humidifier to operate

This humidifier uses a float system to regulate the water flow from the Tank to the Reservoir. The Float Paddle must be properly installed for the unit to operate. If not properly installed, water may not flow into the Reservoir or it may leak from the Base. The Float Paddle is designed to be easy to install and remove.
CAUTION: Improper placement of the Float Paddle could result in leaking or water not feeding to the Reservoir.

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Remove Water Tank.
Line up Float Paddle with the float paddle shape on the bottom of the Reservoir.
Place Float Rod over both Brackets and press firmly until you hear it click into both Brackets.
Pull gently up on the Float Rod to be sure it doesn’t pop out of the Brackets.
Replace Tank in Base.

If using the optional demineralization cartridge, see next section Installing Demineralization Cartridge.

Hard Water and White Dust

High mineral content in your water, also known as hard water, may cause a white mineral residue to accumulate on surfaces in the room near the humidifier. This mineral residue is commonly referred to as white dust. The higher the mineral content (hardness) of your water, the greater the potential that an ultrasonic humidifier may produce white dust.
White dust is not a result of a defect or flaw in the humidifier. It is a result of the amount of minerals suspended in the water you are using.

Installing Demineralization Cartridge optional

If you live in a hard water area, the use of distilled water or a demineralization cartridge with tap water will help minimize the production of white dust. A Honeywell demineralization cartridge (HDC500) is included with some humidifier models.

To install it:

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Remove Tank Cover.
Press the Cartridge into the recessed area inside the Water Tank and twist to secure.
Fill Tank with water according to instructions in the next section, Filling/Refilling the Water Tank.

Note: With a new, dry cartridge, there may be a delay of a few minutes while the water begins to pass through the cartridge.
For best results, replace your Demineralization Cartridge every 20-30 fillings, or when you begin to notice white dust forming. For your convenience, write the month and day you installed the new cartridge on the top with a permanent marker.
To replace, twist the Cartridge and lift to remove. Dispose of in household trash. Replace with a new Honeywell HDC500 or Protec TWT500 Demineralization Cartridge (not available in Canada).

FILLING/REFILLING THE WATER TANK

This humidifier holds a maximum of 1.25 gallons (4.7 liters) of water.
The Tank Cover is removable. You can fill the Tank with the Cover in place or with the Cover removed. Be sure to replace the Cover before using the humidifier to keep objects and debris out of the water.
The Tank can be filled in two ways:

Option 1: At the Humidifier
Option 2: At the Sink

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Both filling options can be performed with or without the Tank Cover in place.
Note: Ensure the Float Paddle has been placed correctly in the Reservoir before filling. See Float Paddle Installation instructions if necessary
Manufacturers will not accept responsibility for property damage caused by water spillage.

Option 1: To Fill Tank at the Humidifier

Pour cool water from a pitcher or jug directly into Water Tank.
Fill to the MAX line marked on the outside of the Tank or to the MAX indicator on the Tank Cover. Replace the Tank Cover if it was removed for filling. Banging or dropping the Water Tank could result in damage to the Tank that may cause leaking.

Option 2: To Fill Tank at the Sink

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Grasp Tank Handle and lift Water Tank to remove from Base. Carry Tank to sink.
Fill Tank with cool water to the MAX line marked on the outside of the Tank or to the MAX indicator on the Tank Cover. Replace the Tank Cover if it was removed.
Carry Water Tank back to humidifier.
Note: The Tank should be carried using two hands; one hand on the Handle located on top of the Tank and other hand supporting the bottom of the Tank.
Replace the full Tank on the Base.
CAUTION: Use care when handling Water Tank to avoid unnecessary impact.

USING YOUR HUMIDIFIER

How to Use

Power: With the Power Knob in the OFF position ( O ), plug humidifier into a polarized 120V outlet.
CAUTION: TO AVOID ELECTRIC SHOCK DO NOT PLUG HUMIDIFIER INTO OUTLET WITH WET HANDS.
Output: Turn the Power Knob clockwise to highest setting.
Position the humidifier to direct mist output away from walls, furniture and bedding. Mist Outlet can rotate 180° and is removable for cleaning.
Humidity Level: When a comfortable humidity level is reached, turn Power Knob to a lower setting. A comfortable humidity level is between 40-60%.

CONDENSATION: If you notice condensation on the walls, windows or around unit, your humidity level is too high. Turn humidifier off and open door to room. To monitor your humidity level, use a humidity monitor such as the Honeywell HHM10B, HHM10 or H10C available at retailers or www.HoneywellPluggedIn.com.
Note: Auto shut off feature will activate when water runs out of the Tank or the Tank is removed from the unit. The auto shut off will not turn off the Power Knob light; it will just turn off the fan and nebulizer.

Setup Guide

Setting up the Honeywell Cool Mist Humidifier HUL570 is straightforward:

Remove all packaging materials and wash your hands before handling the humidifier.
Fill the water tank with fresh, cool water. Avoid using warm or hot water.
Place the water tank onto the base unit until it clicks into place.
Plug in the humidifier and turn it on using the dial control.
Adjust the moisture output as needed by turning the dial.

For optimal performance, ensure that all parts are properly assembled and that the humidifier is placed on a level surface.

Daily Maintenance

Turn off, unplug and remove Tank Cover. Empty Water Tank.
Empty Reservoir by slowly pouring from the top of the Housing on the opposite side from the Mist Outlet and away from Power Knob. Wipe outside of housing to dry any water that may have escaped between Base and Housing.
Rinse Tank, wipe clean and dry with a soft cloth or paper towel.
Refill Water Tank with cool water according to Filling/Refilling the Water Tank instructions.

Note: Ensure the Float Paddle remains properly installed before filling. See Float Paddle Installation instructions if necessary.
CAUTION: Improper placement of the Float Paddle could result in leaking or water not feeding to the Reservoir.

CLEANING YOUR HUMIDIFIER

To keep your humidifier running efficiently, clean it regularly. Weekly cleaning is recommended. All maintenance should be done in the kitchen or bathroom on a water resistant surface near a faucet. To properly clean your humidifier we recommend the separate processes of Scale Removal and Disinfecting. These two processes must be performed separately.

Before Cleaning

Turn off and unplug humidifier. Never clean the humidifier when it is running.
Remove Water Tank and Tank Cover. Empty water from Tank.
Remove accessories, including Demineralization Cartridge, from the Tank if being used. Do not clean accessories.
Remove Mist Outlet, Outlet Cover, Mist Chamber, and Tank Cover.
Note: These four components are dishwasher safe. They may be cleaned in the Top Rack of the dishwasher or by hand as noted in following instructions. Do not place in the bottom rack of dishwasher.
Holding the Base, empty water from Reservoir by slowly pouring from the top of the Housing on the opposite side from the Mist Outlet and away from the Power Knob. The Float Paddle should remain firmly attached to the Brackets in the Reservoir.

Scale Removal

Follow steps 1-5 in Before Cleaning section, then follow the additional steps below.

Pour a minimum of 2 cups (.5 liters) of undiluted distilled white vinegar in the Water Tank. Gently swish vinegar around in the Tank to wet entire inside of Tank.
Place Tank on Base. Vinegar will drain into the Water Reservoir and loosen mineral buildup (scale) in the Reservoir and bottom of the Water Tank. There should be enough vinegar to cover the bottom of the Tank. If not using a dishwasher, the four removable components can be soaked in the Tank. Just add enough vinegar to cover the components in the Water Tank.
Soak for 20 minutes, then remove Water Tank and slowly empty vinegar into sink. Remove components placed in Tank. Rinse Tank and components with tap water until the smell of vinegar is gone.
Remove Float Paddle from Reservoir by lifting up on Float Rod and set aside. Wipe Nebulizer and Reservoir area with a soft cloth to remove loosened minerals.
Empty vinegar from the Reservoir by slowly pouring from the top of the Housing on the opposite side from the Mist Outlet and away from Power Knob. Pour 1.5 cups of water into Reservoir, lightly swish water and pour out. Repeat until smell of vinegar is gone. Avoid getting water into any openings in the Reservoir area by pouring from the top of the Housing on the opposite side from the Mist Outlet and away from Power Knob.
CAUTION: Do not submerge the Base in water. Doing so may damage the humidifier and void the warranty.
Place Float Paddle back in Reservoir, ensuring Float Rod is secured in brackets. For detailed instructions, refer to the Float Paddle Installation section.
CAUTION: Improper placement of the Float Paddle could result in leaking or water not feeding to the Reservoir. Wipe outside of housing to dry any water that may have escaped between Base and Housing.

Disinfecting

Follow steps 1-5 in Before Cleaning section, then follow the additional steps below.
Note: Bleach may stain clothes. It is recommended that you wear rubber gloves during this process to protect your hands.

Mix 1 gallon (3.8 L) of water with 1 teaspoon of bleach. Pour the bleach solution into the Tank.
Note: Using more than 1 teaspoon of bleach to 1 gallon (3.8L) of water may result in damage to the humidifier.
Place Tank on Base. Bleach solution will drain into the Water Reservoir. If not using a dishwasher, the Mist Outlet, Outlet Cover, Mist Chamber and Tank cover can be soaked in the Tank. Just add additional bleach solution to cover the components in the Water Tank.
Soak for 20 minutes, then remove the Water Tank and slowly empty bleach solution into sink. Remove components placed in Tank. Rinse Tank and components with tap water until the smell of bleach is gone.
Remove Float Paddle from Reservoir by lifting up on Float Rod and set aside.
Empty bleach solution from the Reservoir by pouring from the top of the Housing on the opposite side from the Mist Outlet and away from Power Knob. Pour 1.5 cups of water into Reservoir, lightly swish water and pour out. Repeat until smell of bleach is gone. Avoid getting water into any openings in the Reservoir area by pouring from the top of the Housing on the opposite side from the Mist Outlet and away from Power Knob.

CAUTION: Do not submerge the Base in water. Doing so may damage the humidifier and void the warranty.

Wipe outside of housing to dry any water that may have escaped between Base and Housing.

Reassembling
After descaling and disinfecting, follow these steps to reassemble the unit:

Place Mist Chamber over Air Outlet.
Place Outlet Cover on top of Mist Chamber and lightly press down until it clicks into place and sits fully seated on the Housing.
Place Mist Outlet into the recess in the Outlet Cover, lining up the opening in the Outlet with the circle graphic on the Outlet Cover. Press down until you hear a click. This ensures Mist Outlet is positioned properly.
Ensure Float Paddle is installed correctly. Line up Float Paddle with the float paddle shape on the bottom of the Reservoir. Place Float Rod over both Brackets and press firmly until you hear it click into both Brackets. Pull gently up on the Float Rod to be sure it doesn’t pop out of the Brackets.
CAUTION: Improper placement of the Float Paddle could result in leaking or water not feeding to the Reservoir.
Replace Tank Cover and place Tank back onto Base.

End of Season Cleaning and Storage
Follow the cleaning instructions when the humidifier will not be used for at least one week, or at the end of the season. At the end of the season, remove any accessories and discard. Allow the humidifier and all components to dry completely before storing. DO NOT store humidifier with water inside the Reservoir or Water Tank. Pack unit safely and store in cool, dry location.

Troubleshooting

If your humidifier is not working properly, refer to the following:

Problem	Possible Cause	Solution
Water is not draining into Reservoir	Plunger is stuck	Push and release Plunger to be sure it is moving freely
	Float Paddle not installed correctly	Check Float Paddle and ensure it is placed securely in brackets
	Demineralization Cartridge not allowing water to flow	Uninstall Demineralization cartridge, shake a few times, and re-install
Power light is on but little or no mist is released	Water Tank is empty	Fill Water Tank
	Power Knob is set too low	Turn the Power Knob clockwise (right) to increase output
	Hardened minerals on the nebulizer	Clean Nebulizer (refer to Cleaning instructions)
	Mist Chamber is not installed	Verify that all components are installed properly
Water leaking from Base or Reservoir	Float Paddle not placed correctly	Ensure Float Rod is secured in Brackets
	Plunger is damaged	Contact Consumer Relations
	Plunger is sticking	Push and release Plunger to be sure it is moving freely
	Tank is cracked	Inspect tank for damage; contact Consumer Relations
	Plunger may have foreign material stuck under the Tank Gasket	At sink, push and release Plunger system so water may flow

Problem	Possible Cause	Solution
Mist is coming out from bottom of Mist Outlet*	Mist Outlet not properly installed	Remove and replace Mist Outlet into the recess in the Outlet Cover and press down until you hear a click
	Outlet Gasket is missing	Contact Consumer Relations
Outlet Cover will not sit securely on Housing when reassembling after cleaning	Outlet Gasket was removed for cleaning and not securely replaced in Outlet Cover	Be sure Gasket fits tightly in Outlet Cover
Mist is escaping from the area between the tank and housing, in addition to the mist outlet	Outlet Gasket is missing	Replace Gasket if it was removed for cleaning or contact consumer relations for a replacement
Humidifier shuts off	Water Tank is empty	Fill the Tank with Water
	Float Paddle is not installed properly	Check that the Float Paddle is secured in Brackets
White Dust accumulating on surrounding surfaces	Using tap water in your humidifier in hard water areas	Use distilled water or use a Honeywell HDC500 or Protec TWT500 demineralization cartridge
	If using, Demineralization Cartridge has reached life expectancy	Replace Demineralization Cartridge
Condensation on windows and walls or area around humidifier is damp	Mist intensity is set too high for room size or pre-existing humidity level	Decrease mist output to a lower setting or open door to the room
	Humidifier may be too close to wall or window	Move humidifier away from wall or point Mist Outlet away from wall or window

Note: Keeping this unit clean from mineral deposits normally contained in water supply will improve the efficiency and operation of this unit.

Note: It is normal to see some mist escape around the Mist Outlet when the unit first starts

2-YEAR LIMITED WARRANTY

This 2-year limited warranty applies to repair or replacement of product found to be defective in material or workmanship. This warranty does not apply to damage resulting from commercial, abusive, unreasonable use or supplemental damage. Defects that are the result of normal wear and tear will not be considered manufacturing defects under this warranty.

Pros & Cons

Pros

Efficient Humidification: Effective at maintaining optimal humidity levels in medium-sized rooms.
Quiet Operation: Runs quietly without disrupting daily activities or sleep.
Easy Maintenance: Filter-free design and dishwasher-safe parts make cleaning easy.
Affordable: Priced competitively compared to other humidifiers on the market.

Cons

Limited Capacity: The 1-gallon tank may need frequent refills in larger spaces.
No Built-in Humidistat: Requires manual adjustment of moisture output.
No Night Light Feature: May not be ideal for users who prefer a night light function.

Customer Reviews

Customers generally praise the Honeywell Cool Mist Humidifier HUL570 for its effectiveness in humidifying rooms without excessive noise. Many appreciate the easy setup and maintenance, although some note that the tank could be larger for more extended use. Common complaints include occasional leakage issues and the need for more frequent water refills in larger spaces.

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