Skip to content
The Ultimate Ultrasonic Humidifier Buying Guide

The Ultimate Ultrasonic Humidifier Buying Guide

What is a Humidifier?

Humidifiers are devices that add moisture back into the dry air in the form of mist to hydrate your environment. Dry air in the winter can cause many health issues, however, humidifiers can reduce dry air and add so many benefits to your home and health! To learn more about all the benefits, check out our video on why you should own a humidifier and our blog on the "10 Benefits of a Humidifier"!

Types of Humidifiers: Warm Mist and Cool Mist (Ultrasonic vs. Evaporative)

Humidifier type typically refers to the type of mist it creates and releases. There are two main types humidifier mists: Warm Mist and Cool Mist. Cool Mist Humidifiers release refreshing cold mist into the air and are available in two different technologies: Ultrasonic and Evaporative. Check out our blog to learn the differences between Warm Mist and Cool Mist Humidifiers and the Types of Humidifiers.

To help you decide which humidifier is the right choice for you, your home, and your family – we will be going over the pros and cons of an Ultrasonic Cool Mist Humidifier and the 3 things to consider when buying one!

Ultrasonic Humidifier Pros and Cons

An ultrasonic humidifier uses an internal piece that vibrates at high frequencies to create water droplets or micro-fine cool mist into the air.


Whisper-Quiet Operation - Ultrasonic Humidifiers do have an internal fan, so they run silently! They are the perfect choice if you are looking for a humidifier with no operating noise!

Safe Around Children and Pets - Ultrasonic Humidifiers have no heating element and stay cool to the touch when running! This makes them a safe option to have in family rooms where young children and pets are present!

No Filter Replacement Needed - Ultrasonic technology does not include a filter, so you will never have to worry about replacing one! This makes maintenance of these humidifiers easy and convenient!

Aromatherapy Options - Many Ultrasonic Humidifiers come with the option to add essential oils for Aromatherapy! Aromatherapy is great for relaxation, stress-relief, or making your space smell refreshing. Perfect Aire currently offers 2 Ultrasonic humidifier models with aromatherapy – check them out here:


Frequent Cleaning - Since ultrasonic humidifiers do not have an internal filter, you will have to clean your humidifier regularly. However, these are super easy to clean – we recommend using a mixture of water and vinegar.

Uses Purified Water Only - Another disadvantage of not having a filter is that you can only use purified water when filling up the tank to ensure that you are getting the best air quality, health benefits, and to avoid any product damage. Using tap water can lead to white residue on surfaces and mineral buildup.

More Expensive - Ultrasonic Humidifiers can be more expensive than traditional humidifiers, diffusers, or vaporizers. However, the price depends on the number and complexity of features included in the product.

Can Make Your Space Colder - Since ultrasonic humidifiers release a cool mist, it can make your space chillier, so keep this in mind when purchasing an ultrasonic humidifier. If you are looking for a humidifier for medicinal purposes for congestion and cold symptoms, a Warm Mist Humidifier is a better choice for you!

The Top 3 Factors to Consider When Buying an Ultrasonic Humidifier

1. Price

Ultrasonic Humidifiers range between $25 USD to $125 USD depending on the brand, features, and design. Ultrasonic Humidifiers tend to be more expensive than other humidifiers, vaporizers, or diffusers, so think about how often you plan to use a humidifier when creating a budget along with which features are must-haves for you!

2. Features

What features are important to you? Some features for ultrasonic humidifiers to look out for include mist output controls, nightlight, auto shut off, and mist direction nozzles. If you are willing to set a higher budget for your humidifier, features such as LED Digital Displays, Aromatherapy, Programmable Timers, and Refill Indicators are convenient to have!

Humidifiers also vary in run time, or how many hours the humidifier can operate before it needs to be refilled with water. Think about how and when you are planning to use the humidifier. If you want to have it running while you sleep or while you work – you will need a humidifier than runs for at least 8 hours!

3. Room Size

What room type and square footage will you be using the humidifier in?

  • Small Rooms: 50-125 sq. ft. (Hotel Rooms, Dorms, and Small Bedrooms or Offices)
  • Medium Sized Rooms: 125–225 sq. ft. (Bedrooms, Home Office Spaces, and Living Rooms)
  • Large Rooms: 225-325 sq. ft. (Family Rooms, Master Bedrooms, Open-Concept Kitchens, and Studio Apartments)

Which humidifier is the perfect option for you? Check out Perfect Aire’s line of Ultrasonic Humidifiers!

Previous article The Different Types of Humidifiers: Pros & Cons
Next article 10 Benefits of a Humidifier