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Humidifier H35i
Humidifier H35i
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Humidifier H35i
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Humidifier H35i
Humidifier H35i
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Humidifier H35i

Humidifier, Medium Rooms

4.1
Rated 4.1 out of 5 stars
445 Reviews

Meet our first mist-free, top-fill, smart humidifier. With InvisibleMist™ technology you get perfectly balanced air without any water damage or white dust, creating the ideal atmosphere for restful sleep.

  • Refill the humidifier with ease thanks to its top-fill design, ensuring mess-free maintenance so you can focus on comfort, not the hassle.
  • InvisibleMistTM Technology delivers balanced, mist-free humidity that protects your home from white dust, sticky residue, and water damage.
  • Set the perfect humidity levels with smart technology that automatically adjusts to your environment, all controlled through an intuitive app for added convenience.
  • Advanced anti-microbial filter captures impurities and water pollutants, ensuring that the air in your space remains pure and your water stays fresh.
  • Place anywhere with 360˚ design
  • Simple touchscreen interface
  • Automatically humidifies the air
  • Instant humidity readings
  • Dishwasher
safe tank
  • App & Wifi connectivity
  • Alerts when you need a new a filter
  • Tap water
safe

Sleep better,
live better

InvisibleMist™ Technology

Our humidifier provides clean, balanced moisture without stickiness, water residue, or white dust, thanks to the anti-microbial wick filter that traps minerals and pollutants.

Exclusive features in the Blueair app

  • Ship next day free

  • 30 day home trial

  • Authenticity guaranteed

Humidifier H35i

Technical Specifications

  • Dimensions(HxWxD)

    14.6” x 9.4” x 9.4”

  • Product Weight

    7.8 lb

  • Tank Capacity

    3.5 L

  • Recommended room size

    500 sq. ft.

  • Humidification run time

    48 hours

  • Recommended filter change

    Every 6 months

  • Number of filters

    1

  • Speed control options

    1 - 2 - 3 - 4 - Auto - Night

FAQ

Blueair's advanced InvisibleMist™ Technology delivers clean moisture by trapping water impurities in the wick filter, releasing pure water vapor with no mist into the air².

4.1
Rated 4.1 out of 5 stars
Based on 445 reviews
Total 5 star reviews: 282 Total 4 star reviews: 60 Total 3 star reviews: 24 Total 2 star reviews: 19 Total 1 star reviews: 60
77%would recommend these products
445 reviews
  • JT Profile picture for Jason T.google logo
    Jason T.
    Verified Reviewer
    1 week ago
    Reviewing
    DreamWell™ Humidifier H38i Coastal Beige
    Rated 4 out of 5 stars
    Beautiful humidifier with a loud fan

    I really like this humidifier, it looks great, keeps our bedroom at my desired humidity setting, easy to clean and refill. However, the fan on low is surprisingly loud. At night when it’s running it almost sounds like an idling truck outside, which is quite disappointing.

    BU Profile picture for Blueair UK
    Blueair UK
    2 days ago

    Thank you for sharing your experience with the DreamWell Humidifier 1 Gallon. We’re glad to hear you love the design, performance, and how easy it is to maintain. We’re sorry the fan noise on the low setting has been distracting at night, as that is not the experience we aim for. We’ve reached out to you directly so our support team can look into this further and help.

  • M
    Micah
    Verified Reviewer
    2 weeks ago
    Reviewing
    2-in-1 Purify + Humidify
    Rated 1 out of 5 stars
    Recurring Leaks and Unreliable Hardware

    I received this machine as a gift and have been using it for approximately one year. Unfortunately, my experience has been marked by significant reliability issues.

    Within the first four months, I had to replace the original unit due to a series of hardware failures, including false alerts, app connectivity issues, and a completely unresponsive control panel. While the manufacturer provided a replacement, this second unit has now developed a concerning flaw.

    Over the last month of using the humidifier function, I have experienced frequent leaking. About once every five times I remove the water tank for refilling, water leaks from the internal housing of the machine onto the floor. I can confirm this is not a result of a spill, as the tank is nearly empty when it is removed. Between the software failures of the first unit and the mechanical leaks of the second, I no longer have confidence in the quality or safety of this product.

    BU Profile picture for Blueair UK
    Blueair UK
    1 week ago

    Thank you for sharing your experience with the 2 in 1 Purify + Humidify. We are sorry to hear about the ongoing reliability concerns you have faced, especially after already receiving a replacement. Leaking from the internal housing is not expected behavior, and we appreciate you clearly outlining what you are seeing. We have reached out to you directly using your contact information so our support team can review this further and help determine next steps.

  • MJ
    Mark J.
    Verified Reviewer
    3 weeks ago
    Reviewing
    Humidifier H35i
    Rated 1 out of 5 stars
    Poor reliability

    In less than a year the water pump module is no longer working. It first started to not recognize when it was filled, but was able to fix that by cleaning the contacts on the pump inside the module. A couple months later, the pump still recognizes when tank is filled but pump motor itself is shorted. I’ve always used filtered water from the refrigerator to fill the unit as well as clean the fill tank periodically to remove any scale. The wick has been replaced once as directed by the app. This is extremely disappointing, especially since no replacement parts are listed / available.

    BU Profile picture for Blueair UK
    Blueair UK
    3 weeks ago

    Thank you for taking the time to share this detailed feedback on your Invisible Mist humidifier. We are sorry to hear about the pump issue and the lack of available replacement parts, especially given the care you have taken with maintenance. This is not the experience we want for you. We have reached out to you directly using your contact information so we can review options and help move this toward a resolution.

  • MG
    Montana G.
    Verified Buyer
    1 month ago
    Reviewing
    DreamWell™ Humidifier H38i Coastal Beige
    Rated 5 out of 5 stars
    A great humidifier

    I have been loving this humidifier! The design is beautiful and intuitive, and its so quiet I can’t even hear it at night. I bought one for my baby’s room and one for my partner and I. I can tell it makes a difference in the humidity of the air, and I breathe better because of it. My skin is also happier as well!

    BU Profile picture for Blueair UK
    Blueair UK
    3 weeks ago

    Thank you for sharing this wonderful feedback! We’re so glad to hear you’re loving the DreamWell™ Humidifier and that it’s making a noticeable difference for both your family’s comfort and sleep. Quiet performance, thoughtful design, and healthier air are exactly what we aim for. We appreciate you choosing us for such important spaces in your home.

  • K
    Kim
    Verified Buyer
    1 month ago
    Reviewing
    Humidifier H35i
    Rated 1 out of 5 stars
    This company sold me a faulty product

    Basin is full and below the max line and yet the humidifier “low water” light comes on every time. I shouldn’t have to troubleshoot a brand new device every night before using. This product hasn’t worked the entire two weeks I’ve had it. I will never purchase another BlueAir item ever again, I believe this item didn’t pass QC (there’s no document to certify it did like with most small appliances)

    Oh and now my order can’t be found via the return system, how convenient….

    BU Profile picture for Blueair UK
    Blueair UK
    1 month ago

    Thank you for sharing this feedback. We are sorry to hear about your experience with the InvisibleMist™ Humidifier and the repeated low water alert. This is not the experience we want you to have. To reset the low water light, please fill the reservoir, then press the fan speed button on the unit or in the Blueair app to activate the pump and sensor. The light should turn off once water is detected. We have reached out to you directly to help further and assist with any other requests.

² Based on the natural process of water evaporation turning water into gas, releasing only the molecule and comparative testing against ultrasonic leading device.

**Runtime is based on 77°F (25°C), 50% RH in night mode. Actual runtime may vary with different conditions.