PureGuardian H940AR Ultrasonic Cool Mist Humidifier User Manual

Important Safeguards

Please read and save these instructions before using your humidifier. When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the following:

• Always place the humidifier on a firm, flat, water-resistant surface at least 12 inches (30 cm) away from walls and 3 feet (90 cm) from heat sources such as stoves, radiators, or heaters.
• Do not operate the humidifier without water in the tank.
• Do not use attachments not recommended by the manufacturer.
• Never drop or insert any object into any opening.
• Do not operate where aerosol (spray) products are being used or where oxygen is being administered.
• Always unplug the humidifier from the electrical outlet before filling, cleaning, or moving the unit.
• Keep the power cord away from heated surfaces.
• Do not use the humidifier outdoors.
• This appliance has a polarized plug (one blade is wider than the other). To reduce the risk of electric shock, this plug is intended to 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.

California Proposition 65 Warning:

This product can expose you to chemicals including lead or lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Product Components

Familiarize yourself with the parts of your PureGuardian H940AR Humidifier.

Image: Front view of the PureGuardian H940AR Ultrasonic Cool Mist Humidifier, showing the blue water tank, white base, power button, and night light button.

• Water Tank: Transparent blue tank for holding water.
• Base Unit: Contains the ultrasonic transducer and control buttons.
• Mist Nozzle: Located at the top of the water tank, disperses mist.
• Power Button: Controls power and mist output levels.
• Night Light Button: Activates or deactivates the night light feature.
• Aromatherapy Tray: Small tray for adding essential oils (located on the side or back of the base).

Setup

Initial Placement

1. Unpack the humidifier and remove all packaging materials.
2. Place the humidifier on a firm, flat, water-resistant surface. Ensure it is at least 12 inches (30 cm) from walls and 3 feet (90 cm) from any heat sources.

Filling the Water Tank

1. Remove the water tank from the base unit.
2. Turn the tank upside down and unscrew the tank cap.
3. Fill the tank with cool, clean tap water. Distilled water is recommended to minimize white dust.
4. Securely screw the tank cap back on.
5. Place the filled water tank back onto the base unit, ensuring it is seated correctly.

Image: The PureGuardian H940AR Humidifier with its blue water tank separated from the white base, illustrating how to access the tank for refilling.

Operating Instructions

Power On/Off and Mist Control

1. Plug the power cord into a 120V AC electrical outlet.
2. Press the Power Button (⏻) once to turn the humidifier on at the low mist setting.
3. Press the Power Button again to cycle through medium and high mist settings.
4. Press the Power Button a fourth time to turn the humidifier off.

Image: The PureGuardian H940AR Humidifier actively emitting a visible cool mist from its top nozzle, demonstrating its operation.

Night Light Feature

1. Press the Night Light Button (💡) to turn the soft blue night light on.
2. Press the Night Light Button again to turn the night light off.

Image: The PureGuardian H940AR Humidifier with its internal blue night light illuminated, providing a soft glow.

Aromatherapy Tray (Optional)

1. Locate the aromatherapy tray on the side or back of the base unit.
2. Add a few drops of your preferred essential oil onto the aromatherapy pad within the tray. Do not add essential oils directly into the water tank.
3. Close the aromatherapy tray. The humidifier will disperse the aroma along with the mist.

The humidifier features an automatic shut-off when the water tank is empty, indicated by a red light on the power button.

Maintenance

Regular cleaning is essential for optimal performance and hygiene.

Daily Maintenance

• Empty the water tank and base unit.
• Rinse the water tank and base thoroughly with cool water.
• Refill the tank with fresh water before each use.

Weekly Maintenance

• Unplug the humidifier.
• Remove the water tank and empty any remaining water.
• Pour 2 cups of undiluted white vinegar into the water tank and swish to coat all surfaces. Let it stand for 20 minutes.
• Empty the vinegar and rinse the tank thoroughly with warm water.
• For the base unit, gently wipe the ultrasonic transducer and heating element (if applicable) with a soft cloth dampened with white vinegar. Do not submerge the base in water.
• Rinse the base unit with clean water, being careful not to get water into the air outlet.
• The Silver Clean treated tank helps inhibit the growth of mold and mildew on the surface of the water tank.

Storage

When storing the humidifier, ensure all parts are clean and dry. Store in a cool, dry place.

Troubleshooting

Refer to this table for common issues and their solutions.

Specifications

Warranty and Support

This PureGuardian product is backed by a manufacturer's warranty. For specific warranty details, registration, or to contact customer support, please refer to the official PureGuardian website or the warranty card included with your purchase.

For technical assistance or service inquiries, please visit the GermGuardian Store on Amazon or the manufacturer's official support channels.