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Pure Guardian H7550 90-Hour Ultrasonic Humidifier

PureGuardian 90-Hour Smart Mist Ultrasonic Humidifier - H7550

Model: H7550 | SKU: ge3557
List Price: $149.95
ON SALE! $129.95
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  • FREE 2 Day Express Shipping
  • In Stock - Order Now. Your item will ship Wednesday, Apr 22nd

Special Offers
Additional Warranty Options Available
1-Year Extended Warranty (Product Replacement) ($19.95) Details
2-Year Extended Warranty (Product Replacement) ($26.95) Details
  • Product Overview

    The PureGuardian H7550 Smart Mist Ultrasonic Humidifier is a smart way to keep your space comfortably humidified during dry wintry months. This cool and warm mist humidifier features a smart automatic humidistat that allows you to program your desired humidity level and let the humidifier maintain that level automatically for a consistently comfortable space. Plus, the H7550 humidifier incorporates precise digital controls along with an ultra-modern crisp white design that looks great on any table or nightstand. This PureGuardian humidifier runs for up to 90 hours continuously and works best in medium-sized spaces up to 300 square feet.

    Smart Mist Humidistat

    Maintaining a consistently comfortable space has never been easier than with the PureGuardian H7550 90-Hour Humidifier. This model includes Smart Mist technology, which uses an auto-adjusting humidistat that maintains your programmed humidity level automatically. During operation, the humidifier's humidity sensor continually senses the ambient humidity of your room and turns the humidifier on if the humidity falls below your selected level. This feature boosts the unit's energy efficiency while helping you maximize the comfort of your home.

    Silver Clean Technology

    No stranger to natural innovative technologies, PureGuardian has equipped the H7550 with advanced Silver Clean Technology. For centuries, silver has been recognized as a natural sanitizer that inhibits the growth of mold and mildew.  Silver particles are embedded inside the water tank where they work continuously to inhibit mold and bacteria buildup. This means you're in for less cleaning, a cleaner healthier mist, and less maintenance headaches!

    Additional Features

    • Cool or Warm Mist - The PureGuardian H7550's Humidifier's cool mist setting delivers a comfortable room temperature mist while the warm mist setting delivers a slightly warmed mist.
    • 3 Mist Settings - Find just the right level of mist with variable spray control. Choose from low, medium, and high mist.
    • Low Water Indicator - Always know when it's time to refill the water reservoir with the refill indicator light. You can also monitor the water level through the humidifier's water level window.
    • Soft Glow Nightlight - The nightlight produces a soft glow that provides gentle lighting in the evening hours. 
    • 12-Hour Timer - Program operation for up to 12 hours with the onboard timer.
    • Ultra-Quiet Operation - This humidifier uses near-silent ultrasonic humidifying technology.
    • Extended Reach Wands - Ensure that the mist reaches every corner of your room by attaching one of 2 included extended reach wands.
    • No Filters, Evaporating Pads, or Wicks - This humidifier uses no filters, evaporating pads, or wicks. That means no added cost on replacement parts!
    • Cleaning Brush with Storage - A handy cleaning brush makes it easy to clean the inside of the humidifier. Plus, it stores neatly inside the unit.


    The PureGuardian 90-Hour Smart Mist Ultrasonic Humidifier is a smart and efficient way to maintain a comfortably humidified space this winter.

    What Customers Love

    • 90-Hour Runtime - This humidifier runs up to 90 hours continuously on a single fill when running in cool mist mode on the lowest moisture output setting.
    • Less Cleaning - Silver Clean technology means you're in for less cleaning and maintenance and less headaches!
    • Auto Humidistat - Set your desired humidity and the humidifier maintains that humidity level automatically in your space.

    Things to Consider

    • Have Hard Water? - If you have hard water, consider adding the FLTDC Decalcification Filter to remove harmful minerals so they won't be released into your air. 


    Manufacturer's Warranty

    3-Year-Limited Warranty

    Manufacturer's Literature

    PureGuardian H7550 Owner's Manual
    User's Guide for the H7550 Humidifier

    What's In The Box?

    • Pure Guardian H7550 Warm and Cool Mist Humidifier
    • Owner's Manual

    View All Humidifiers »
  • Specifications

    Humidifier TechnologyUltrasonic
    Type of HumidifierCool Mist and Warm Mist
    Coverage Area300 sq. ft.
    Ideal ForSingle Room
    Height13.98 in.
    Width9.76 in.
    Depth5.12 in.
    Weight5.45 lbs.
    Moisture Output Per Day1.9 gallons
    Water Reservoir Capacity1.32 gallons
    Running Time Before Next RefillUp to 90 hours
    Fill TypeRemovable Reservoir
    Water Refill IndicatorYes
    Humidistat Yes
    Humidity DisplayYes
    Mist Output ControlYes
    Programmable TimerYes
    Wick FilterNo
    Air FiltrationNo
    Automatic Safety ShutoffYes
    Maximum Wattage130 W
    Voltage110-120 V
  • Product Q&A

    Have a shipping or payment-related question?
  • Reviews

    View All Pure Guardian 90-Hour Smart Mist Ultrasonic Humidifier - H7550 Reviews


    by PowerReviews
    PureGuardianPure Guardian 90-Hour Smart Mist Ultrasonic Humidifier - H7550

    (based on 2 reviews)

    Ratings Distribution

    • 5 Stars



    • 4 Stars



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    • 1 Stars



    Reviewed by 2 customers

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    Just what we were looking for!

    By Happy camper

    from Spartanburg, SC

    About Me Homeowner

    Verified Buyer


    • Adjustable Settings
    • Easy To Use
    • Lightweight
    • Quiet
    • Very Effective


    • Inaccurate Humidity Read
    • Somewhat Drippy

    Best Uses

    • Bedroom
    • Dry Winter
    • Help With Ailments
    • Living Room

    Comments about PureGuardian Pure Guardian 90-Hour Smart Mist Ultrasonic Humidifier - H7550:

    We put it in our great room and it humidified the whole house. Cut down on static electricity in the house. I got the flu a few days after we got the humidifier, and it really helped with the cold symptoms. Only complaint is that the humidity readout does not seem accurate, compared to a hygrometer we have.

    (7 of 7 customers found this review helpful)


    We are very happy with our purchase!

    By beechiegirl1953

    from Fair Oaks Ranch, TX

    About Me Careful Shopper, Homeowner, Professional, Value Oriented Shopper

    Verified Buyer


    • Adjustable Settings
    • Easy To Use
    • Lightweight
    • Quiet


    • Big Light Unnecessary
    • Controls Need Lights
    • Hard To Read Controls

    Best Uses

    • Bedroom
    • End Nighttime Stuffiness
    • Nursery

    Comments about PureGuardian Pure Guardian 90-Hour Smart Mist Ultrasonic Humidifier - H7550:

    Easy to fill and good capacity that lasts us two nights between refills. Just the right amount of cool steam for our needs. It ended my (huge) problem with having to breathe through my mouth at night, which used to wake me up at regular intervals. (I don't like using nasal sprays)We also notice that our skin isn't so dry anymore. What definitely NEEDS to be improved (but is certainly not a deal-breaker)is that the big light is totally unnecessary, but the touch controls definitely NEED to be lighted or, at the very least, marked with dark symbols that a person can read. In the right light in the daytime, they can be seen, but not easily. At night, we have to use a small flashlight to see them. This is ridiculous! Also, since there is no way to set the controls and then eliminate the lighting in the display window, I had to make a 'curtain' of black electrical tape that I put over the display at night. Recent studies have proven that even a small, dim light in the bedroom can disturb sleep, and the display is BRIGHT, not dim. As for the LARGE BRIGHT light that comes on when you turn the unit on, it can be turned off via the settings button, but neither of us can figure out why it is even there. If an 'on' light is deemed necessary, then it could be like most 'on' lights - a 1/4" in diameter light. We don't need one that is 2" wide!!! Then is going to be turned OFF! Yet, you can't see the buttons for setting the unit the way you want! Really??? WHO thought this up? Now to a major PLUS: We have never heard the unit operate. It is not just 'quiet,' but is silent. Great feature. Outside of the lighting issues, the unit is very attractively designed and has a small footprint while doing a big job. We have NO issues such as some reviewers have mentioned about a fine, white residue. Our's is placed on a 20" high small stand, and the mist actually blows onto an artificial floral arrangement which extends over it from a window shelf. There is no indication whatsoever that this occurs, as the arrangement and the wall just inches from the humidifier have NO residue nor dampness. As for delivery, it was fast. No complaints there. Overall, we love it, and would purchase it again, if necessary. But, we hope that the company actually reads these reviews, because fixing the lighting problem - especially being able to read the controls - would make it near perfect in our estimation. Do away with the big 'on' light, light the controls, and then make it possible to shut them off after setting the unit the way you want at night.

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