Blueair 211 vs 411 Air Purifiers Compared: Air Quality Face-Off

As you explore the world of air purifiers, you may come across the Blueair 211 vs 411 — two excellent yet different models from the Blue Pure series.

Both of these minimalist and high-performing machines are products of Blueair, a company renowned for its exceptional air purifiers.

The siblings’ rivalry is evident as these models vary in size and capacity, each serving unique purposes in your home.

The Blueair 211 can clean a room up to 530 sq. ft., making it considerably larger than the Blueair 411, which is designed for spaces up to 161 sq. ft.

However, despite their differences in size and shape, they share the same goal: to effectively clean the air you breathe.

Another neat feature is the availability of several pre-filter colors, allowing you to customize the look of your purifier to match your living space.

As you venture further into this comparison, you’ll discover the unique attributes and benefits of each model, helping you decide which air purifier is best suited for your needs.

Blueair 211 vs 411: Specifications

It’s important for you to know the key differences between the Blueair Blue Pure 211+ and the Blueair Blue Pure 411 before deciding.

Here’s a quick comparison:

Dimensions20.5 x 13 x 13 inches (52,2 x 33 x 33 cm)16.7 x 7.8 x 7.8 inches (42,5 x 20 x 20 cm)
Room Coverage (4.8 ACH)540 sq. ft.161 sq. ft.
Performance Ratings9.8/109.7/10
Filtration TechnologyWashable Pre-filter, Particle Filter, Carbon Filter, and HEPASilentWashable Pre-filter, Particle Filter, Carbon Filter, and HEPASilent
Filter Replacement IndicatorYesYes
Filter Longevityabout 6 months6-8 months
Operating Costs Ratings8.9/109.6/10
Fan Speeds3 – Low Mode, Medium Mode, and High Mode3 – Speed 1, Speed 2, and Speed 3
Air Quality SensorNoNo
Noise Levels43.9 – 59.7 dBA40.6 – 67.5 dBA
Noise Ratings9.3/109.1/10

Blueair 211 vs 411: Features Overview

Single Button Control

Keeping it simple and convenient, both the Blueair 211+ and Blueair 411 air purifiers avoid complexity with their one-button control.

This button, found on the front of the 211+ and the upper side of the 411, allows you to easily switch between modes and reset the filter reset indicator with just a touch.

Both air purifiers use only one button for control.

Additionally, these air purifiers are compatible with smart plug devices, remembering the last chosen working mode if power is ever lost.

Filter Replacement Indicator

Both the Blueair 211+ and Blueair 411 have a filter reset indicator to help you know when it’s time to change the filter.

When the indicator turns yellow, you have about a month before the filter needs to be replaced.

If the indicator turns red, it’s time to replace the filter as soon as possible.

Washable Pre-Filters

As products from the same company, the pre-filters in both the 211+ and 411 models are washable.

The pre-filter is a fabric available in five different colors, allowing you to easily complement the style of your interior.

Airflow Efficiency

Despite their differing shapes, both the Blueair 211+ and the Blueair 411 have similar airflow capabilities.

The motors are situated in the upper part of the appliance, with air entering the lower part.

Blueair 211 vs 411

Once filtered, the air is released through the holes on the upper side, making the process straightforward and easy to follow.

Warranty Information

When purchasing either a Blueair 211+ or 411 air purifier, you’ll receive a one-year warranty.

To extend your warranty coverage by another year, you must register on Blueair’s website upon purchase.

It’s worth noting that, considering their Classic series comes with five years of warranty, Blueair could consider offering a longer warranty for their Blue Pure series.

Blueair 211 vs 411: Filtration Technology

Replacing Filters for Both Air Purifiers

Blueair 211+ and Blueair 411 both utilize a 3-stage filtration process enhanced by HEPASilent technology.

However, the filters for the larger Blueair 211+ are also larger in size compared to those in the smaller Blueair 411.

Blueair 211 vs 411 HEPASilent

In both devices, the initial stage features a washable, color-changing fabric as a pre-filter.

Next, the particle filter captures allergens and mold, followed by a fibrous filter coated with carbon.

While these air purifiers demonstrate great results in filtration, they may struggle to remove excess gas in the room, especially in smoky environments.

Upgrading to a True HEPA filter could enhance their performance even further.

To ensure optimal performance, it’s essential to replace the filters on your device when necessary.

Both Blueair 211+ and Blueair 411 are designed for filters to last up to 6 months with regular use.

By taking good care of the washable pre-filter and cleaning it periodically, you can maximize the efficiency and lifespan of your air purifier.

Blueair 211 vs 411: Noise Tests

In order to assess the noise levels of both the Blueair 211+ and the Blueair 411 air purifiers, a special tool was used to measure their performance across three different fan speeds.

It’s important to consider noise levels when selecting an air purifier, as they can affect your comfort, especially during sleep.

While testing, it was observed that both air purifiers offer quiet operation at the lowest fan speed, providing a peaceful environment for a good night’s sleep.

However, at the highest fan speed, they produce a unique buzzing sound that might be noticeable to some users.

The noise range measurements of Blueair 411 and Blueair 211+ are as follows:

ProductNoise Range (dBA)
Blueair 41140.6 – 67.5 dBA
Blueair 211+43.9 – 59.7 dBA

From these results, the Blueair 411 operates more quietly at the lowest fan speed, while the Blueair 211+ has a more pleasant noise level at the maximum speed.

In terms of noise levels, it seems that both air purifiers have their own advantages, making it a close call between the two.

Blueair 211 vs 411: Performance Evaluation

Testing in a 320 sq. ft. Room

During this comparison, one of the most significant differences between the Blueair 211+ and Blueair 411 was the room coverage capacity.

The Blueair 211+ can cover over three times the area that the Blueair 411 can manage.

To better assess their performance, both air purifiers were tested in a 320 sq. ft. room using a laser particle meter.

Both devices were run at their highest speed settings for an hour in identical conditions.

By the end of the test, the Blueair 411 had improved air quality by approximately 90%.

The Blueair 211+ outperformed it slightly, achieving a 96% air quality improvement.

Additional Testing

To further examine their capabilities, both air purifiers were tested in other room sizes closer to the manufacturer’s recommended coverage areas.

The Blueair 411 was tested in a 194 sq. ft. room, delivering even better results: the air quality improved by about 95%.

On the other hand, the Blueair 211+ was tested in a larger 560 sq. ft. room.

It still produced impressive results, with around a 92% improvement in air quality.

Overall, both air purifiers performed exceptionally well.

Rest assured, either choice will result in a notable enhancement in air quality for your living spaces, whether small or medium- to large-sized rooms.

Blueair 211 vs 411: Operating Costs

Understanding the expenses associated with your air purifier is crucial when deciding on the most suitable option for your needs.

In comparing the Blueair 411 and Blueair 211+, there is a clear distinction in their power consumption.

The Blueair 411 has a 10W motor, while the Blueair 211+ boasts a significantly more powerful 61W motor.

To give you an idea of the operating costs, let’s assume both air purifiers run at their maximum capacity for an entire month.

In this scenario, the Blueair 211+ would incur approximately $4.3 in expenses.

Meanwhile, the Blueair 411’s cost would not surpass $1.

ProductWattage Range
Blueair 4110.3 – 7.6W
Blueair 211+0.2 – 49W

Taking into account both the energy costs and filter replacement expenses, it’s evident that the Blueair 411 ranks as one of the most affordable and cost-effective air purifiers, particularly when compared to the Blueair 211+.

Blueair 211 vs 411: Final Verdict

So, you’re probably looking for a clear winner between the Blueair 211 vs 411 air purifiers.

Choosing between these two great options can be challenging, as they both come from the same series and have excellent performance.

If you need to cover an extra-large area with a powerful machine, the Blueair 211+ is the right choice for you.

It offers high airflow and superior overall performance.

However, if your space is smaller and does not exceed 200 sq. ft., the Blueair 411 is the ideal option.

It’s affordable and powerful, providing excellent value for your money.

Remember, the final decision ultimately depends on your specific needs and the size of the area you want to purify.

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