At Pure Guardian® Humidifiers, Ultrasonic Humidifier, we are passionate about improving indoor air quality through innovative humidification solutions. For over 20 years, our team of engineers and designers have been creating ultrasonic humidifiers, cool mist humidifiers, and warm mist humidifiers that provide the right amount of moisture to relieve dry air discomforts.
Our Humidification Journey

Our journey began in 2001 when we identified a need for compact, easy-to-use humidifiers for modern households and workspaces. We leveraged ultrasonic technology to create humidifiers that could quickly and quietly emit a fine, cool mist to elevate humidity levels.
As we continued to innovate, we expanded our catalog to include solutions for bedrooms, baby nurseries, and large spaces. We engineered humidifiers with aroma diffusers, warm mist, top-fill tanks, and smart humidistats to give customers options for their unique needs.
In recent years, we have focused on making humidifiers that are easy to clean and maintain. Our anti-microbial tanks, dishwasher-safe parts, and replacement filters make it simple to keep our humidifiers hygienic and working their best.
The Importance of Humidification
At Pure Guardian®, we believe that proper indoor humidity levels are crucial for comfort and wellbeing. Most homes and offices fall below the recommended 30-50% relative humidity during colder winter months when furnaces run.
Low humidity leads to a host of problems like:
- Dry, irritated skin
- Itchy eyes and sinuses
- Scratchy throats
- Increased risk of illness
- Static electricity
- Damage to wood furnishings and musical instruments
Our ultrasonic humidifiers emit a cool mist to bring humidity back to healthy levels so you can sleep better, breathe easier, and feel comfortable without having to deal with the hassles of dry air.
Our Ultrasonic Humidifier Difference
Ultrasonic technology is at the core of our humidifier design. Inside each of our units is an ultrasonic membrane that vibrates at a high frequency to create micro-fine water droplets.
This cool, invisible mist is then dispersed through the air to boost humidity. The key benefits of our ultrasonic humidifiers include:
- Quiet operation – No noisy fans or motors
- Fast mist output – Humidifies spaces quickly
- Cool, clean mist – Leaves no white dust residues
- Energy efficiency – Uses less energy than other technologies
We fine-tuned our ultrasonic membranes to have the ideal frequency, amplitude, and diameter to maximize mist output. This allows our humidifiers to work efficiently in bedrooms, living rooms, and offices up to 500 square feet.
Focus on Health & Hygiene

While humidification makes the air more comfortable, it also supports your health. Proper moisture helps keep your respiratory system functioning properly so you can breathe easier.
To make humidification as hygienic as possible, we build our humidifiers using antimicrobial materials. The water tanks and surfaces that come in contact with moisture have an antimicrobial substance embedded to inhibit mold, fungus, and bacterial growth.
Many of our humidifier tanks and bases are also dishwasher-safe so you can easily sanitize the parts. We use replaceable filters to keep the water clean and include cleaning brushes so you can scrub the tanks.
By taking extra steps to reduce microbes and mineral buildup, our humidifiers provide clean, healthy moisture.
Humidifiers for Every Space
We know that humidification needs can vary depending on room sizes, moisture demands, and personal preferences. That’s why we offer a diverse range of ultrasonic humidifiers, cool mist humidifiers, and warm mist humidifiers suitable for:
- Bedrooms: Get a restful night’s sleep with the proper moisture levels from our ultrasonic cool mist humidifiers designed specifically for bedrooms and master suites.
- Baby nurseries: Give your little one relief from dry air that can irritate young skin and tender sinuses with a nursery humidifier.
- Living rooms and offices: Humidify your living room, den, or office space up to 500 square feet with our powerful ultrasonic cool mist humidifiers.
- Large rooms: Use one of our humidifiers with high mist outputs to elevate humidity in large, open concept rooms.
- Sinus and allergy sufferers: Get extra relief with our warm mist humidifiers that produce soothing, medicated vapors to ease sinus congestion and allergies.
- Essential oil users: Enjoy the benefits of aromatherapy by adding your favorite essential oils to select models equipped with aroma diffusers.
With so many options, you can find the perfect humidifier for the needs of every room and family member.
Our Humidifier Collection
We currently offer over 30 humidifier models across 4 main categories:
Ultrasonic Cool Mist Humidifiers
Our most popular category, these humidifiers use ultrasonic technology to emit a cool, invisible mist. They have the benefits of quiet operation, fast humidifying, and no white dust. Models include:
- Top-fill humidifiers with easy refill tanks
- Compact tabletop humidifiers fitting tight spaces
- Console humidifiers for large rooms
- Humidifiers with essential oil diffusers
- Smart humidifiers you can control with an app
Warm Mist Humidifiers
These humidifiers work by heating the water to produce a comforting visible mist. The warm moisture is especially beneficial for sinus congestion and colds. Our models include:
- Warm mist humidifiers with medicine cups for medicated vapors
- Portable travel warm mist humidifiers
- Warm and cool mist 2-in-1 humidifiers offering dual benefits
Evaporative Humidifiers
These humidifiers use a fan to draw air through a wet wick filter to add moisture. They provide powerful humidification for large spaces. Our key models are:
- Evaporative humidifiers capable of handling 650+ square feet
- Humidifiers with wheels for portability in the home
Whole House Humidifiers
Designed to provide whole home humidification by integrating with your home’s HVAC system. Our ductable humidifiers offer:
- Bypass or power humidification for homes of any size
- Programmable humidistats to maintain optimal humidity
With humidifiers available for rooms of all sizes, conditions, and budgets, we make it easy to find the right solution.
Customer Commitment

Behind all our innovative products is a dedication to the customer. We take pride in designing humidifiers that are easy to set up, use, and maintain so you can enjoy the benefits hassle-free.
Our commitment to the customer continues well beyond the initial purchase:
Responsive Customer Service
Our helpful customer service team is available 6 days a week to provide guidance on selecting, using, maintaining, and troubleshooting our humidifiers. You can get fast answers via phone, email, or live chat.
Educational Resources
We offer a range of humidifier buying guides, FAQs, troubleshooting tips, and care instructions on our website so you can become an expert. These resources make it easy to understand humidification and our products.
Warranty Service
All our humidifiers come with a 1, 2, or 3 year warranty. We stand behind our products and will help with any manufacturing defects. Just contact us for quick assistance.
Replacement Parts
We stock replacement filters, wicks, tanks, and other parts so you can keep your humidifier working as long as possible. Our replacement parts ensure you get the full value from your investment.
At Pure Guardian®, your satisfaction comes first. We’ll be there to make sure you have the best possible experience with our humidification products.
The Future of Healthy Humidity
While we’ve made great strides in humidification technology and performance over the past 20 years, our team is always looking ahead to innovate and improve.
Some areas we are exploring include:
- Smart connectivity – Humidifiers that integrate with smart home platforms and can be controlled from anywhere via app and voice assistants.
- Advanced sensors – Humidity sensors that continuously monitor conditions and make automatic adjustments to maintain ideal moisture levels.
- Quieter operation – Using next-generation ultrasonic membranes and sound dampening materials to make our humidifiers whisper-quiet.
- Cleaner tanks – New antimicrobial substances and materials to make tanks even more resistant to microbe growth.
- Extended filters – Improving filter technology to extend time between replacements for less maintenance.
Our mission is to continue pushing humidifier performance, convenience, and health benefits so customers can focus purely on the comfort and wellbeing humidification provides.
We thank you for choosing Pure Guardian® for your humidification needs. With your support, we look forward to many more years of healthy humidity innovation. Please explore our website to discover how our humidifiers can improve the air in your home or office.