Blueair 411 Auto Vs Xiaomi Mi 3H – Best for you in 2024


As we increasingly prioritize the quality of the air we breathe indoors, the need for a dependable air purifier is more apparent than ever. Today, we have a treat for you! We’re delving into the exciting comparison of Blueair 411 Auto vs Xiaomi Mi 3H, two giants in the air purification realm. This is for you, whether you’re an experienced user searching for an upgrade, or you’re dipping your toes in the world of air purifiers for the first time.

Overall, both these air purifiers have their unique strengths and merits. However, one might have the edge in this head-to-head contest, emerging as the best solution for most situations. We won’t keep you in suspense for long, though, as we’re about to dive deep into the nitty-gritty, analyzing each product’s features, performance, and value.

By the end of this post, we aim to provide you with a clear understanding of both air purifiers, helping you make a confident and informed choice. Buckle up, folks! It’s time to witness the air purifier showdown of 2023, the Blueair 411 Auto vs Xiaomi Mi 3H. Let’s dive in.

Model411 AutoMi 3H
Dimensions7.9 x 7.9 x 16.7 inches9.5 x 9.5 x 20.5 inches (24 x 24 x 52 cm)
Room Coverage (4.8 ACH)190 sq. ft.484 sq. ft. (45 m2)
Performance Ratings9.6/109.7/10
Filtration TechnologyWashable Pre-filter, Particle Filter, and Carbon FilterPre-filter, True HEPA, and Active Carbon Filter
Filter Replacement IndicatorYesYes
Filter Longevityabout 6 months12-month
Fan Speeds3 – Night Mode, Everyday Mode, Boost Mode5 – Sleep Mode, Speed 1, Speed 2, Speed 3, and Max Speed
Air Quality SensorYesYes
Noise Levels41.6 – 61.2 dBA40.9 – 65.4 dBA
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Blueair 411 vs Xiomi Mi 3H



  • Color: White & black
  • Product Dimensions: 8″D x 8″W x 3.94″H
  • Item Weight: ‎3.38 Pounds
  • Control Method: Touch
  • Wattage: 10

Blueair, a Swedish company, is renowned for its high-quality air purifiers. They have been leaders in the air purification industry for over two decades, demonstrating their commitment to creating healthier environments for people to breathe freely.

The Blueair 411 Auto stands out due to its elegant design, effective filtration system, and particularly the inclusion of an air quality sensor, a rarity in such compact models.

Currently, we do not have any special offers for this product, but we encourage you to check back frequently for updates.


  • Compact design suitable for smaller spaces
  • Advanced filtration with washable pre-filter for cost-saving
  • The inclusion of an air quality sensor and indicator
  • Energy-efficient performance with a low power consumption of 10W


  • Lacks smart app and manual mode for enhanced user control
  • Offers a relatively shorter filter lifespan compared to some competitors

Xiomi Mi 3H



  • Color: White
  • Product Dimensions: 9.5 x 9.5 x 20.5 inches
  • Item Weight: ‎5kg
  • Control Method: Touch
  • Wattage: 38

Xiaomi, a multinational company from China, is popular for their diverse technology products, including air purifiers. They are known for their smart, feature-rich, and affordable devices.

The Xiaomi Mi 3H is notable for its advanced features such as the smart app, manual mode, and temperature and humidity meter, all of which provide an enhanced user experience.

At the moment, we don’t have any special offers for the Xiaomi Mi 3H. Stay tuned for future updates and deals.


  • Covers a large area, ideal for bigger rooms or living spaces
  • Integrated smart app enhances user experience and convenience
  • Longer filter longevity, lasting up to a year
  • Offers more fan speeds for greater flexibility


  • Larger and heavier, may not be ideal for small spaces
  • Limited warranty period compared to some competitors


Auto Mode

Both the Blueair 411 Auto and Xiaomi Mi 3H come with an auto mode feature. When you turn on auto mode, the air purifier automatically adjusts its fan speed based on the air quality readings from the built-in sensor. This means the purifier adapts its performance to the current air conditions, providing efficient purification when needed without manual adjustments.

Temperature and Humidity Meter

The Xiaomi Mi 3H goes beyond just air quality sensing. It also includes sensors to measure the temperature and humidity in the air. By monitoring these factors, you get a more detailed understanding of the overall air quality in your room. This information helps you assess the comfort level and make informed decisions regarding your indoor environment.

Filter Reset Indicator

One handy feature present in both the Blueair 411 Auto and Xiaomi Mi 3H air purifiers is the filter reset indicator. This indicator helps you keep track of when it’s time to replace the filters.

In the Blueair 411 Auto, the filter reset indicator is conveniently located just above the control button. When it’s time for a filter change, the indicator will light up in red, letting you know it’s time to take action.

For the Xiaomi Mi 3H, the filter reset indicator is displayed on the device’s screen when you turn it on. Additionally, if you have the smart app connected, you can check the remaining filter life at any time, ensuring you stay informed about the status of your filters.

Air Quality Sensor and Indicator

Both the Blueair 411 Auto and Xiaomi Mi 3H air purifiers come equipped with air quality sensors. These sensors are a significant improvement in newer models, especially those with “Auto” in their name.

The air quality sensor in the Blueair 411 Auto detects dust particles in real-time, providing valuable information about the current air quality. This data is then displayed through an air quality indicator located on the front of the device.

Similarly, the Xiaomi Mi 3H also features an air quality sensor that detects dust particles in real-time. It works together with other features such as an air quality indicator and PM2.5 indicator, enhancing the overall air monitoring capabilities of the device.

Having an air quality sensor is a notable advancement in these air purifiers, making it much easier to gauge and improve the air quality in your surroundings on a daily basis.


When it comes to the warranty, the Blueair air purifier offers a longer coverage period. It comes with a 2-year warranty, which means that any issues or defects within that time will be covered by Blueair. On the other hand, the Xiaomi air purifier provides a 1-year warranty, offering slightly shorter coverage compared to Blueair.

Filtration Technology

Blueair 411 Auto Vs Xiaomi Mi 3H

When it comes to filtration technology, there are some key differences between the Xiaomi Mi 3H and Blueair 411 Auto.

The Xiaomi Mi 3H uses a 3-stage filtration system, which includes a nylon mesh pre-filter, a True HEPA filter, and an activated carbon filter. This combination helps capture various pollutants effectively.

On the other hand, the Blueair 411 Auto utilizes a 4-stage filtration system. It consists of a washable pre-filter, a particle filter, a carbon filter, and a special HEPASilent technology. HEPASilent technology is an always-active ionizer that can’t be turned off. It’s worth noting that the Blueair 411 Auto is CARB certified, ensuring it meets safety standards regarding ozone production.

While both purifiers offer effective filtration, the Xiaomi Mi 3H has an advantage with its True HEPA filter, which is known for its high efficiency in capturing airborne particles. Additionally, Xiaomi uses a pellet-based carbon filter, which is more efficient than the fibrous carbon-coated filter used in the Blueair 411 Auto.

However, the Blueair 411 Auto has a unique feature—a washable pre-filter that is available in five different colors, adding a touch of personalization to the purifier’s appearance.

Noise Tests

In noise tests, Xiaomi demonstrated its excellence as an air purifier. With more fan speeds and the ability to adjust fan speed through the smart app, it was expected that Xiaomi would offer quieter operation compared to the Blueair 411 Auto.

Moreover, Xiaomi Mi 3H features a sleep mode that produces a sound of just 40.9 dBA, while the Blueair 411 Auto produces 41.6 dBA at its lowest speed.

Here are the noise ranges for both products:

  • Blueair 411 Auto: 41.6 – 61.2 dBA
  • Xiaomi Mi 3H: 40.9 – 65.4 dBA

In addition, the Xiaomi motor operates more smoothly, especially at the maximum speed, while Blueair can be slightly louder.

Performance Tests

One of the most interesting aspects to compare in this Blueair 411 Auto vs Xiaomi Mi 3H showdown is their performance, particularly considering the difference in room coverage.

In order to provide more accurate and reliable results, I conducted various tests to assess their performance.

During daily usage, it became evident that Xiaomi outperformed Blueair in neutralizing unpleasant odors, which is an important aspect to highlight.

320 sq. ft. Room Tests: In the first test conducted in a 320 sq. ft. room, both devices showcased excellent performance.

At maximum speed, the Xiaomi Mi 3H improved air quality by approximately 95% within 60 minutes of operation. Meanwhile, the Blueair 411 Auto demonstrated an air quality improvement of around 91% under the same conditions and timeframe.

The comparison of the Blueair 411 Auto and Xiaomi Mi 3H reveals a contest between simplicity and advanced functionality. The Blueair 411 Auto wins in terms of ease of use and energy efficiency, while the Xiaomi Mi 3H impresses with its array of features and larger room coverage.

Operating Costs

Many might assume that the Blueair 411 Auto consumes less power due to its 10W motor, which is nearly four times lower than the 38W motor of the Xiaomi Mi 3H.

If both devices were left to run at maximum speed for 24 hours a day throughout a month, the Blueair 411 Auto would increase your electricity bill by approximately $0.8, while the Xiaomi Mi 3H would raise it by about $3.4.

Here are the wattage ranges for each product:

  • Blueair 411 Auto: 1.9 – 9.1W
  • Xiaomi Mi 3H: 0.9 – 39W

Considering the combined expenses of replacement filters, power usage, and filter longevity, the Blueair 411 Auto proves to be more cost-effective for annual maintenance compared to the Xiaomi Mi 3H.


Choosing the right air purifier depends on individual needs and preferences. We all have different purposes for using air purifiers, so it’s essential to consider specific requirements when making a decision.

Use Blueair 411 Auto if:

  • You have a smaller room where it can fit better and provide effective air purification.
  • You prioritize affordability and lower maintenance costs.
  • You prefer a washable pre-filter and the option to choose from different color options.
  • You are satisfied with its performance in terms of air quality improvement and odor neutralization.

Use Xiaomi Mi 3H if:

  • You have a larger room that requires powerful air purification.
  • You want advanced features like a True HEPA filter, pellet-based carbon filter, and a smart app for enhanced control and convenience.
  • You value its outstanding performance in air quality improvement and odor elimination.
  • You are willing to invest in a higher-priced air purifier for comprehensive air purification capabilities.

Situation where Blueair 411 Auto is better:

  • Smaller rooms
  • Affordability and lower maintenance costs
  • Preference for washable pre-filter and color options

Situation where Xiaomi Mi 3H is better:

  • Larger rooms
  • Advanced features and smart app control
  • Superior filtration with True HEPA and pellet-based carbon filter
  • Exceptional performance in air quality improvement and odor elimination


Which air purifier is better for larger rooms?

The Xiaomi Mi 3H is better suited for larger rooms due to its powerful air purification capabilities and larger coverage area.

Are the filters in both air purifiers easily replaceable?

Yes, both the Blueair 411 Auto and Xiaomi Mi 3H have replaceable filters. However, the frequency of filter replacement may vary.

Can I control the air purifiers remotely?

Yes, the Xiaomi Mi 3H offers a smart app that allows remote control and monitoring of the device. The Blueair 411 Auto does not have this feature.

Do these air purifiers make a lot of noise?

The noise levels can vary between the two models. The Xiaomi Mi 3H generally operates quieter, especially in sleep mode, while the Blueair 411 Auto may produce slightly higher noise levels.

Which air purifier is more cost-effective in terms of maintenance?

The Blueair 411 Auto tends to be more cost-effective for maintenance due to its washable pre-filter and longer filter longevity. However, the Xiaomi Mi 3H offers advanced features that may justify the higher maintenance costs for some users.

Can the air purifiers eliminate specific odors?

Both air purifiers are effective in neutralizing odors to some extent. However, the Xiaomi Mi 3H has shown exceptional results in odor elimination due to its superior filtration technology.

Are these air purifiers suitable for individuals with allergies or respiratory conditions?

Yes, both the Blueair 411 Auto and Xiaomi Mi 3H are designed to improve indoor air quality, making them suitable for individuals with allergies or respiratory conditions. However, the effectiveness may vary depending on the specific needs and sensitivities of the individual.

What is the warranty coverage for these air purifiers?

The Blueair 411 Auto typically comes with a 2-year warranty, while the Xiaomi Mi 3H offers a 1-year warranty. It’s important to check the specific warranty terms and conditions provided by the manufacturers.

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The author is an Air purifier expert with overall knowledge of air and ionizers.