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H4810AR 2-Gallon Ultrasonic Warm Mist & Cool Mist Humidifier with Aromatherapy Tray by PureGuardian® H4810AR 2-Gallon Ultrasonic Warm Mist & Cool Mist Humidifier with Aromatherapy Tray by PureGuardian®
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H4810AR 2-Gallon Ultrasonic Warm Mist & Cool Mist Humidifier with Aromatherapy Tray by PureGuardian®

Availability: In stock - Canada Only SKU: H4810AR
MSRP: $229.99
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Product Information

The 120-hour* Ultrasonic Warm and Cool Mist Humidifier guards against problems caused by dry air in the home. It features an easy to fill large 2 gallon tank, ideal for use in medium to large rooms. Unlike other humidifiers that grow slimy mold on the water tank surface, Silver Clean™ Protection is embedded in the tank to fight the growth of mold and mildew on the surface of the water tank. Thanks to ultrasonic technology, it disperses a fine mist into the air, and is ultra-quiet making it ideal to have on while you sleep. It has an optional aromatherapy tray so a few drops of essential oil can be added to create a relaxing atmosphere. The humidifier is equipped with the option for warm or cool mist and 3 speed settings. A low water indicator light lets you know when it's time to refill the water tank. It also features a soft glow night light, and a timer. PureGuardian® humidifiers create a better home environment for those suffering from colds, allergies and dry skin. Note: Run time is based off of running the unit on low setting and cool mist, also depends on atmospheric conditions.

Ideal For

  • Medium rooms
  • Large rooms


Large 2 gallon tank provides up to 120-hours* of run time and is great for medium to large rooms

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

Silver Clean™ Protection fights the growth of mold and mildew on the surface of the water tank

You choose warm or cool mist to optimize your comfort

Electronic control options include night light, 12-hour timer and 3 speed settings

Additional Features:

  • No evaporating pads or wicks to clean or replace
  • Directional nozzle broadens mist in two directions throughout the room
  • Low water indicator illuminates when it’s time to refill the tank
  • Auto shut-off
  • Aromatherapy Tray option helps create a relaxing environment with your favorite essential oil. Oils not included

Product Specifications

  • SKU: H4810AR
  • Weight: 5.4lbs.
  • Dimensions: 7.75 x 15.03 x 12.48
  • Input Voltage: 120VAC/60Hz
  • Cord Length: 5'
  • Bulb Wattage 30W Cool/90W Warm
  • Construction: Plastic
  • Run Time: Up to 120 hours
  • Manual: H4810AR PDF Manual
  • Manual: H4810 PDF Manual
  • The PureGuardian® 120-Hour* 2-Gallon Ultrasonic Warm and Cool Mist Humidifier uses a metal diaphragm vibrating at an ultrasonic frequency to create water droplets that are expelled out into the room to help maintain the desired humidity level. An ultrasonic humidifier is virtually silent when operating.

  • Why should I use a humidifier?
    People need a certain level of humidity to be comfortable. In the winter, indoor humidity can be extremely low, and the lack of humidity can dry out your skin and mucous membranes. Low humidity also makes the air feel colder than it actually is. Dry air can also dry out the wood in the walls and floors of our houses. As the drying wood shrinks, it can cause creaks in floors and cracks in drywall and plaster. Dry air also increases static electricity.

    Does the product require regular cleaning?
    Regular cleaning is recommended; approximately every 1–2 weeks (depending on use). When storing the unit, it is recommended to pour any excess water out and clean it with a soft, damp cloth. Let dry completely before storing.

    Are there any wicks or evaporating pads to replace?
    No. There are no wicks or pads to replace.

    What is ultrasonic technology?
    An ultrasonic humidifier uses a metal diaphragm vibrating at an ultrasonic frequency to create water droplets. Thanks to ultrasonic technology the Guardian Technologies™ humidifier is virtually silent when running, allowing you to keep it on while you sleep.

    What is Silver Clean™ technology, and why is it used in your humidifier?
    Unlike other humidifiers that grow slimy mold and mildew, the Guardian Technologies™ PureGuardian® 120-Hour Ultrasonic Digital Humidifier uses Silver Clean™ technology embedded in the tank to fight the growth of mold and mildew on the surface of the water tank.

    Where should I use the product?
    It is recommended that you place the product up and not on the floor. Placing it on a table or nightstand during operation is suggested.


    What size room will the humidifier work in?
    Thanks to the adjustable spray feature, this humidifier works well in both large and small rooms.

    What is a comfortable humidity level?
    Forty to fifty-five percent (40–55%) humidity is considered within the comfortable range. Any humidity level below thirty percent (30%) is considered dry.

    How do I choose warm or cool humidification?
    Choosing warm or cool humidification is based on your preference. Warm moisture tends to make the air in the room feel warmer due to the warm vapor being released into the air. In contrast, cool moisture generally has the opposite effect, causing the air to feel cooler.

    Therefore, if you live in a warm climate, you may prefer a cool moisture humidifier, while those who live in colder climates may prefer a warm moisture humidifier.

    Do I need to heat the water first if I want to have warm humidification?
    No. It is recommended to put room temperature water into the tank for humidifying. The Guardian Technologies™ humidifier will heat and maintain the water temperature for warm humidification.

    Do I need to put in a certain type of water for my humidifier to work?
    You can use either distilled or regular tap water. If you have a high mineral content in your tap water, it may be preferable to use distilled water. Since distilled water is likely to contain lower mineral content than most tap water, it will prevent less build-up.

    How long is the warranty?
    The warranty is 3-years limited. For detailed warranty specifications please refer to the warranty section in the instruction manual.

    If you have further questions, please contact us at 1-866-603-5900

  • By completing this form, you agree to be automatically added to our marketing lists. We promise to respect your privacy. You can opt-out by clicking unsubscribe from any email you may receive from us.

    To read the full warranty, click here.



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By: Esmeralda

Excellent Humidifier

I love it! excellent product!

By: snuggly puggly


just got this in our apartment. Our and I needed a humidifier bad we both have medical conditions that we need both hot and cold you don't find many we are so happy.

By: kelly

This product is amazing

This warm mist Humidifier is so quiet I have to look to make sure its on. Great amount of mist that sprays out. Perfect size, easy to fill..Timing feature to automatically shut of at either 4 or 8 hours is another great feature.

By: Lucy

Ultra Quiet...but heavy and awkward after refilling and placing water tank back on bottom part.

It works very well and is super quiet. However re-filling and placing water tank back in place is very difficult for a 72 year old female. It's a struggle, but I carry out the entire procedure slowly and carefully. I'm trying to avoid injury.

By: Joan Kilgore

great but 3 problems

1. Have to carry to water faucet to fill. Turn upside down to fill. Why can't fill from top so don't have to carry to faucet.
2. After it is filled, is very heavy and cumbersome to carry back. No handles.
3. Difficult to aim back onto the bottom half. If not careful fingers get caught between the two containers and you've gotten blue & black fingers.
Otherwise a great machine that has helped my dry nose and throat.

By: C. Schou

Works great but poor tank design this time

This is our third guardian model that we own and I've always been happy with their performance, no issues with that at all. This one is by far more quiet than any of the prior models. I'm very disappointed however with the water tank design. Without fail it will leak water from the mist spout every time I go to fill it up with water. All previous designs kept the water inside the tank. This one is different because the mist spout is integrated in the tank and water will get in there no matter how hard you try to lift the tank. Sorry guys but this time around you only get 3 stars from us (all prior models were indeed 5 stars!)

By: J. Bello

A workhorse , sturdy

This is our 4th humidifier in the last 3 years, all different brands. PureGuardian is by far the best one! We use them in the winter. In the past we have had one burn up in smoke, one who's light keeps turning on and disturbs our toddler in the middle of the night and doesn't provide "hot" mist as advertised, one that doesn't connect appropriately so the water never refills the chamber and it turns off in the night, and another which is just weak. Trust me- this is the workhorse of the lot.

By: ajyjr47

Great Product!

the unit is extremely quiet. Absolutely no noise as I am a very light sleeper. Probably will but another for main level of home!!!!!!

By: haba77

a good product, nice design

This is an excellent humidifier! It does a wonderful job in putting out a strong mist and I love that this humidifier can be set on a timer! it also allows you to set it on high mist, medium mist to low mist.
It has the option of using warm or cool mist. It also lights up at night if you want the night light on. It does a great job of putting out a strong mist 2 ways on the top nozzle and the tank is simple to fill and clean. It runs longer with this 2 gallon tank which stops you from constant refilling!
Very glad that I bought it, since there was no reviews on it to read at the time I purchased it.. There is also a 3 year warranty..