Winix AM90 Air Purifier: Your Friendly Guide to Breathing Easy

If you’re looking for a reliable air purifier to clean the indoor air in your home, the Winix AM90 Air Purifier might be just what you need.

This 4-stage true HEPA air purifier offers cutting-edge technology to efficiently remove contaminants from the air and improve your overall indoor air quality.

With features like WiFi connectivity and PlasmaWave Technology, it’s no wonder why this air purifier is gaining popularity among homeowners.

In this article, we’ll dive into the features and benefits of the Winix AM90 air purifier and explore how it works to keep your air clean and fresh.

Whether you’re someone who suffers from allergies or simply wants to breathe cleaner air, keep reading to discover everything you need to know about the Winix AM90 air purifier.

Let’s get started!

Winix AM90 Air Purifier featured image

Winix AM90 Air Purifier: Product Overview

Product Dimensions8.7″D x 15.1″W x 23.5″H
Power SourceCorded Electric
Item Weight16.5 Pounds
Control MethodVoice
Filter TypeHEPA
Floor Area360 Square Feet
Noise Level27 dB
Controller TypeVera, Amazon Alexa
Wattage65 watts
Item Weight16.5 pounds
Country of OriginKorea, Republic of
Item model number1022-0214-00
Customer Reviews4.7 out of 5 stars
Best Sellers Rank#4,794 in Home & Kitchen (See Top 100 in Home & Kitchen)
#23 in HEPA Filter Air Purifiers
Care instructionsChange filters every 12 months
Assembly requiredNo
Number of pieces1
Warranty Description2 year manufacturer
Batteries requiredNo
Included ComponentsTrue Hepa Filter, Activated Carbon Filter

The Winix AM90 air purifier is a fantastic device to improve the air quality in your home.

Its sleek design and state-of-the-art features ensure that you can breathe comfortably in any home room.

This model has been specifically designed to cover medium-sized to large-sized rooms, making it a versatile choice for your living spaces.

With its impressive 4-stage True HEPA air filtration system, the Winix AM90 effectively removes 99.99% of airborne particles as small as 0.003 microns.

This includes common allergens, dust, pet dander, and even smoke particles.

The air purifier’s coverage area is up to 360 sq ft, which means it’ll easily clean the air in your living room, bedroom, or even a small finished basement area.

The Winix AM90’s airflow and air cleaning capacity are further enhanced by the addition of PlasmaWave technology.

This innovative feature helps to break down pollutants at a molecular level for a thorough and efficient cleaning process that goes beyond standard HEPA filtration.

Another great feature of the Winix AM90 is its WiFi capability.

With the help of your smartphone, you can monitor and control the device remotely.

Smart sensors and an auto mode allow the purifier to adjust its fan speeds according to real-time air quality measurements.

This not only ensures optimal air cleaning but also conserves energy by running the purifier at the appropriate level.

Features of Winix AM90 Air Purifier

Sleep Mode

The Winix AM90 air purifier has a sleep mode feature, ensuring you’ll have a peaceful and quiet night’s rest.

When this mode is activated, the fan speed will automatically slow down, and the display lights will dim to create a calming environment in your room.

Auto Mode

Don’t worry about constantly adjusting settings; the Winix AM90 takes care of it with its auto mode feature.

The air purifier will automatically adjust its fan speed and operation based on the air quality in your space.

This means you can enjoy cleaner air without lifting a finger.

Wi-Fi Control

With the Wi-Fi control feature, managing your air purifier has never been more convenient.

You can easily connect the Winix AM90 to your home’s wireless network and control the device using your smartphone or tablet.

This allows you to adjust settings, check the air quality, and receive notifications from anywhere.

Voice Control

To make things even more seamless, the Winix AM90 is compatible with voice control systems like Amazon Alexa and Google Assistant.

Winix AM90 Air Purifier

By syncing your air purifier with your smart home system, you can control the device using simple voice commands, making it easier than ever to maintain optimal air quality in your home.

Winix Smart App

The Winix Smart App is the perfect companion for your Winix AM90 air purifier.

With this app, you can monitor and control your air purifier from any location, receive real-time air quality updates, and schedule automated tasks like turning the device on or off based on your preferences.

This app ensures you’ll always have a smarter air purifier experience right at your fingertips.

Winix AM90 Air Purifier: Filter System

True HEPA Filter

The Winix AM90 air purifier features a True HEPA filter that captures 99.99% of airborne allergens such as pollen, dust, smoke, pet dander, and other ultrafine particles as small as 0.003 microns.

This efficient filtration system ensures that you and your family can breathe clean, fresh air at all times.

Activated Carbon Filter

Next in the filtration lineup is the activated carbon filter.

This filter is crucial in removing harmful chemicals, odors, and volatile organic compounds (VOCs) from the air.

It does so by effectively absorbing these impurities and neutralizing unpleasant smells, providing you with a healthier and more comfortable living environment.

Mesh Pre-Filter

The mesh pre-filter serves as the first line of defense in the filtration process.

It captures larger airborne particles such as dust, hair, and pet fur before they reach the more delicate HEPA and Carbon filters.

This not only prolongs their lifespan but also ensures maximum efficiency in air cleaning.

Filter Replacement Indicator

To ensure optimal performance, it is essential to replace the filters periodically.

The Winix AM90 has a nifty filter replacement indicator that will light up when it’s time to replace the filters.

This smart feature eliminates the guesswork and ensures that your air purifier always provides the best quality air possible.

How Winix AM90 Works

Smart Sensors

The Winix AM90 air purifier is designed with built-in smart sensors that constantly monitor the air quality in your living space.

These sensors detect the presence of harmful particles such as dust, pollen, and other allergens, automatically adjusting the fan speed to filter out these impurities effectively.

By doing this, you can always be sure that your air purifier works efficiently to keep your home’s air clean and healthy.

PlasmaWave Technology

One of the key features of the Winix AM90 air purifier is its PlasmaWave Technology.

This advanced air purification method generates positive and negative ions to create hydroxyl.

These hydroxyls then break down harmful pollutants, including odors, chemicals, and bacteria, at a molecular level without producing harmful ozone.

Thanks to this technology, you can breathe fresher and healthier air while avoiding respiratory issues and allergies.

Clean Air Delivery Rate

The Clean Air Delivery Rate (CADR) of an air purifier is a crucial factor in determining its efficiency.

The Winix AM90 boasts impressive CADR ratings for smoke, pollen, and dust, making it suitable for medium to large rooms up to 360 square feet.

Higher CADR values signify better performance, so the AM90’s ability to quickly clean the air ensures that your space remains fresh and rejuvenated.

Winix AM90 Air Purifier: Efficiency and Room Coverage

Energy Efficiency

The Winix AM90 air purifier cares about the environment and your wallet.

Its energy efficiency ensures you’re not consuming too much power while keeping your room’s air fresh and clean.

With the Winix AM90, you’ll enjoy the benefits of better air quality without facing huge energy bills.

Room Size

You might be wondering about the room coverage of the Winix AM90. Good news! It’s designed for medium to large room sizes.

The air purifier’s coverage is verified at 360 sq. ft.

Winix AM90 Air Purifier Room capacity

You can confidently use it in your living room, bedroom, or any other space that falls within this range.

Air Changes per Hour

Let’s talk about Air Changes per Hour (ACH).

ACH determines how often the air purifier filters the entire volume of air in a room.

The Winix AM90 boasts an ACH rate of 5 clean air changes per hour in a 360 sq. ft. room.

This means that every twelve minutes, the air in your room will go through the purifier’s filtration process, ensuring a constant supply of fresh, clean air.

Winix AM90 Air Purifier: Health Benefits

Removal of Allergens

The Winix AM90 air purifier can effectively remove airborne allergens that plague many households.

By capturing 99.99% of particles as small as 0.003 microns, you’ll find relief from common irritants like pollen, dust, and pet dander.

Thanks to its high-quality True HEPA filter, your indoor air will be free from airborne allergens, providing a more comfortable environment for yourself and your family.

Microbes Elimination

Another great feature of the Winix AM90 is its ability to eliminate harmful microbes from your living space.

Utilizing its advanced PlasmaWave® Air Cleaning Technology, this air purifier can break down contaminants like bacteria and viruses that could threaten your health.

By incorporating this air purifier into your home, you’re taking valuable steps toward maintaining a safer, cleaner environment for everyone.

Winix AM90 Air Purifier: Pros and Cons


  1. Solid build: The Winix AM90 boasts a sturdy construction that ensures the durability and longevity of the device.
  2. Alexa voice control: With Amazon Alexa integration, you can easily control your air purifier using just your voice, making it a convenient addition to your smart home system.
  3. High-performance: The 4-stage purification process effectively removes airborne allergens and contaminants in your living space.
  4. Dual air sensors: The AM90 comes equipped with dual air sensors for accurate air quality monitoring and adjustments.
  5. 2-year warranty: You can rest assured with the protection of a 2-year warranty on the Winix AM90.


  1. High filter replacement cost: While the air purifier itself is offered at an affordable price, the cost of replacing filters can be relatively high.
  2. Not Wi-Fi enabled: Unlike some other air purifiers in the market, the Winix AM90 is not Wi-Fi enabled, which may limit smart home connectivity options for some users.

Winix AM90 Air Purifier: Safety and Certifications

When it comes to the safety and certifications of the Winix AM90 air purifier, you can feel confident knowing that it has undergone thorough testing to meet specific standards.

The AM90 air purifier has been UL certified, which means it has been tested and approved by Underwriters Laboratories, ensuring its electrical components meet essential safety requirements.

Moreover, the Winix AM90 has been proudly ENERGY STAR certified.

Winix AM90 Air Purifier Amazon alexa

This certification ensures the air purifier meets strict energy efficiency guidelines set by the US Environmental Protection Agency.

As a result, you can trust that your AM90 device will use less energy, saving you money on your electricity bills and reducing its environmental impact.

To further prove its effectiveness, the AM90 has also been AHAM Verifide at 360 sq ft, meaning it has been independently tested and certified by the Association of Home Appliance Manufacturers.

This certification guarantees the air purifier can clean rooms up to 1,740 sq ft in 1 hour (870 sq ft in 30 minutes, 580 sq ft in 20 minutes, and 435 sq ft in 15 minutes), providing you with a reliable solution for improving the air quality in your medium-to-large-sized living spaces.

Winix AM90: Final Thoughts

The Winix AM90 air purifier is a powerful and effective solution for those looking to improve their indoor air quality.

With its sleek design, quiet operation, and user-friendly features, the Winix AM90 air purifier is a convenient and cost-effective option for anyone looking to breathe cleaner, healthier air.

The Winix AM90 air purifier offers WiFi support, 4-stage filtration, and PlasmaWave Air Cleaning Technology, providing your home with clean and fresh air.

There are some user reviews saying that the device cannot identify dirty air at slower speeds. The auto feature does a decent job, although it may be a little slow to react to changes in air quality.

Additionally, customers revealed that settings 1–3 are silent, but setting 4 gets louder. However, having a turbo option is convenient if you need to filter all of the air right away.

But overall, offering advanced technology, user-friendly features, and an attractive design, the Winix AM90 is a good investment for any home.

Its modern design and convenient voice control easily make it a great addition to any living space.

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