Blueair Classic 680i Air Purifier: Trusted Review & Specs

Finally, the Blueair Classic 680i – the biggest and best Blueair Classic air purifier, but does it offer enough? We will find out soon in our today Blueair Classic 680i Review, but in short, this air purifier could be available in the list of the best air purifiers in our website.

Blueair Classic 680i ranks A- in our air purifier ranking list

UPDATED: The Blueair HealthProtect 7470i and HealthProtect 7770i are the best air purifiers you can get from this Swedish brand right now.

In Breathe Quality, we have reviewed all air purifiers under these sections. Also, we guarantee that:

  • We do give honest reviews (both pros and cons) so anyone will guarantee to have the wisest choices.
  • We do not (and never) exaggerate one product just to let you click the links and buy that product blindly.


blueair classic 680i review

  • Top-notch performance rating
  • Excellent and smart air flow with high CADR and ACH
  • Top high-end smart features
  • Peak technology to reduce the noise level and maximize the air flow
  • Large room coverage of 775 square feet
  • 5-year warranty

  • Design isn’t updated
  • Most expensive Blueair Classic out

Blueair is a symbol of air purifier industry for more than 20 years, with their expansion to more than 60 countries. As the obvious upgrade of the Blueair Classic 605, our today Blueair Classic 680i is easily the best that Blueair can cram into an air purifier. Fact is, with its high-end features, the Blueair Classic 680i should be the better air purifier than even the huge Blueair Pro XL. It’s time for our Blueair Classic 680i Review, to check one of the top-class air purifiers you can buy for your home.

Other Blueair’s Air Purifier Reviews:

Blueair Classic 680i Price

As I must say, the Blueair Classic 680i is the favorable card up Blueair’s sleeve. It has unmatched performance, even among the rank of Blueair family, high-end features and a built-in air sensor. Better design of the Blueair Classic 605 allows us to move the huge air purifier easily, and it also supports the air cleaning tasks.

However, if you are really a fan of Blueair, you will be a bit disappointed for the old sake appearance of the Blueair Classic 680i. For someone who doesn’t really need the Auto Mode on, the standard Classic 605 feels like it offers better value.

But hey, this is the biggest and most powerful Blueair Classic air purifier, and the Blueair Classic 680i can take the very best of its technology and combining it with an upgraded design that includes a new set of casters, smart and dynamic air flow system, and an extraordinary fan power. It is expensive, obviously, Blueair raises the price for the Blueair Classic 680i to $899 on their official website.

This air purifier is like it should be in the Pro family, as its price matches the Blueair Pro L. So if you’re not rich enough to swim regularly in a pool of money, it’s probably time to get saving.

Yes, it rivals the cost of some strongest air purifiers in the world, like the IQAir HealthPro Plus, Oransi EJ120, Airpura UV600 or Austin Air Bedroom Machine. However, this Blueair Classic 680i is easily the most advanced air purifier among the rank. That’s how it’s designed to do very different things.

You will also find some interesting air purifiers for the price, most notably the Molekule Air. These air purifiers are much smaller than any aforementioned machines, and they don’t have such huge fan power. However, with the exclusive air filtration technology, these air purifiers can completely get rid of chemicals and biological pollutants. I recommend you not to skip them.

Top Blueair Classic 680i deals right now

Blueair Classic 680i Air Purifier for home with HEPASilent Technology and DualProtection Filters – Large Rooms.

The best Blueair Classic air purifier you can get, with Wi-Fi enabled capability and integrated air quality sensors. Proven to remove 99.99% of the 12 most common airborne viruses and bacteria including H1N1 and E.Coli from your indoor environment.

Related post: Best air purifier 2022.

Blueair Classic 680i Design and Size

Blueair might not have changed the design of the Blueair Classic 680i, compared to the previous Blueair Classic 605 (and even Blueair Classic 505), but this design’s already been the improved one. It has a three-dimension air interaction allows the machine to have a complete 360° air distribution. The air inlet and air outlet are placed in both sides, to cycle the air flow much better.

The rest of the design is very similar to what we’ve seen from the closest brother in 600 Series: the bottom air inlet and top air outlet, so the Blueair Classic 680i needs a very powerful fan motor to deliver such huge amount of air flow.

We have a housing made from durable, galvanized steel, which is premium both in feeling and looking. Blueair Classic 680i is built to last longer. It is also super big, with 26 inches in height and 20 inches in width. Luckily, we have 4 casters to help move this big air purifier, weighing at 35 lbs.

blueair classic 680i review


Ultimately, the design of the Blueair Classic 680i is pretty much identical to that of the Classic 605 – to the point where I managed to take the wrong device for our next performance test. The top control panel is still convenient and easy to use.

Related post: Best air purifiers for bedroom.

Blueair Classic 680i Filters

Aside from the high-end additional features, the exclusive air filtration technology of Blueair Classic 680i is one of the main selling points for this high-end, expensive air purifier. From the previous Blueair Classic 605, we need not one, but three air filters to work for the Blueair 600 Series.

  • Particle Filter/ SmokeStop Filter – You can choose from the Particle Filter with the power to capture 99.97% of pollutants such as pollen, dust, pet dander, mold spores, viruses and bacteria down to 0.1 microns. Or you can pay more for SmokeStop Filter, which is most likely the combination of True HEPA filter and Activated Carbon Filter.

Air filtration technology of the Blueair Classic 680i is simply the best you can get at the moment. Blueair Classic 680i uses Particle Filter, with thermally bonded fibers containing polypropylene and polyethylene. This air filter is free of chemicals and naturally anti-bacterial.

Blueair uses the unique HEPASilent technology to remove virtually all airborne pollutants. This technology combines both electrostatic and mechanical filtration, to ensure the maximum efficiency of trapping air pollutants. It is proven to remove 99.99% of the 12 most common airborne viruses and bacteria. You can learn more on page 20 of the Blueair Performance Book.

blueair classic 680i review


I highly recommend you to get the SmokeStop air filter, to increase the odor removal up to 4 times. It has given the name of DualProtection, with the addition of high-porosity coconut carbon, to remove gaseous pollutants, VOCs and chemicals much easier.

All of air filters made by Blueair has gradient filter structure, so they can resist clogging to maintain maximum airflow. However, the air filter is so high-quality that it can trap even airborne pollutants as small as 0.1 microns.

Though the internals of Blueair Classic 680i are similar to the Classic 605, it performed better in our same test of 500 square feet. At efficiency of 99.99%, the Blueair Classic 680i was better than the IQAir HealthPro Plus, Oransi EJ120 or Alen BreatheSmart 75i.

blueair classic 680i review

Though the upfront cost of Blueair Classic 680i’s filter is quite low, as it is only $89 on Blueair website, the filter can last for only 6 months. I recommend you to get the filter replacement from the below deal, which is genuine filter from the manufacturer.

Related post: Best air purifiers for allergies.

Blueair Classic 680i Room Coverage

What you’re getting is an air purifier meant for extra-large rooms, verified by the Association of Home Appliance Manufacturers (AHAM). These standards are the best methods for measuring and calculating the CADR rating of one air purifier. That being said, the Blueair Classic 680i is suggested for room size up to 775 square feet.

The ACH of Blueair Classic 680i is 5X. High fan power allows the device to exchange up to 5 times per hour even in a large space.

The CADR of Blueair Classic 680i is 400 Dust/ 450 Smoke/ 450 Pollen (cfm). The higher the CADR value, the more clean air is produced by the air purifier at the same time. Blueair Classic 680i feels more immersive in extra-large rooms, and it needs such high fan power to compete in the rank of high-range air purifiers.

Related post: Best large room air purifiers.

Blueair Classic 680i Sound

Again, you should notice the filtration technology of Blueair Classic 680i named HEPASilent. On lowest speed, the huge and bulky machine runs at whisper quiet sound with 32 decibels (db). It is just amazing for an air purifier with such power.

If you want to sleep with the maximum protection on, then you can sleep well with the Blueair Classic 680i. The sound level of 62 decibels is equivalent to the white noise of a floor fan, so if you place the device at a distance of 100 feet, I bet that you can sleep well.

Related post: Best air purifiers for baby.

Blueair Classic 680i Power Consumption

One of our most FAQs is “Do air purifiers use a lot of energy?” An air purifier is meant to run for a long time to be efficient, that’s why many air purifier brands consider the energy-saving standard, mostly in the rate of Energy Star, is one important selling point.

The Blueair Classic 680i shares the same power consumption as its brother – the Blueair Classic 605. Its lowest power consumption is just only 15 watts, and the highest is 103 watts. I believe the Blueair Classic 680i is Energy Star rated, according to the similarity with the Classic 605.

For running a Blueair Classic 680i 8 hours per day, you only need to pay from $21 to $36 annually, depending on which mode you run the most.

Related post: Best air purifiers for pets.

Blueair Classic 680i Additional Features

I should get into assessing the additional features for the Blueair Classic 680i so quickly in our review, as this is the main changes in the big boy for the old Blueair Classic 605.

If you are familiar with the Blueair Classic 280i and Blueair Classic 480i, however, you can easily skip this section for the final verdict. In terms of hardware, the key difference is the addition of the integrated air sensor. It allows the Blueair Classic 680i to keep up with changing conditions automatically, thanks to the advanced Auto Mode. To track the PM 2.5 and VOC level, you should check the color-coded indicator on Blueair Classic 680i’s control panel.

It also report the current air quality: PM 2.5, VOC, temperature, humidity in your app. Blueair Classic 680i can be managed remotely from your smartphone, tablet, or Alexa with Wi-Fi. Also, thanks to the Blueair Friend App, you can adjust the fan speed or LED intensity. You can activate the Night Mode to keep the air purifier on lowest speed, and dim all the display. Finally, the app provides a Child lock option, to prevent any accidental changes of setting.

Blueair Classic 680i certainly has a LED indicator for filter replacement, to remind you when to change the air filter.

Related posts:

1, Best air purifiers for smoke.

2, Best air purifiers for dust.

3, Best air purifiers for mold.

Blueair Classic 680i Customer Service

As one of the best air purifier brands, Blueair focuses strongly on the customer service. With a lot of local stores and a dedicated supports from both phone and email, you are guaranteed to reach them as soon as possible.

If you need to find a local store of Blueair in all over the world, you can use the store locator function of their website. To reach the customer service, you can choose from calling them at 888-258-3247, or emailing them at They will be available for you from Monday to Friday, with the exceptions of U.S holidays.

Remember only one thing, you need to complete the Product Registration form within 60 days of purchase or register through the Blueair Friend mobile app to secure the 5-year warranty. Otherwise, you only benefit from 1-year warranty. Moreover, do not attempt to bring the air purifier outside of the United States or Canada, or your warranty will be void immediately.

Top Blueair Classic 680i deals right now

Blueair Classic 680i Air Purifier for home with HEPASilent Technology and DualProtection Filters – Large Rooms.

The best Blueair Classic air purifier you can get, with Wi-Fi enabled capability and integrated air quality sensors. Proven to remove 99.99% of the 12 most common airborne viruses and bacteria including H1N1 and E.Coli from your indoor environment.

Our verdict

You should buy the Blueair Classic 680i if you want the very best Blueair Classic air purifier out there. In fact, there is no better air purifiers on the market that offer so many high-end additional features like the Blueair Classic 680i. The top dog of Blueair can stand toe-to-toe with any flagships from other well-known air purifier brands, in terms of performance or spec.

But don’t buy it if you are watching the pennies. Seriously, the Blueair Classic 680i is more expensive, and do you really need such huge power of air cleaning? While this is the most advanced Blueair air purifier, the same features are applied in much more affordable options like the Blueair Classic 280i and Blueair Classic 480i. If you just happen to want all the very latest air purifier features, you shouldn’t forget these two air purifiers.

  • Performance
  • Features
  • Annual Cost
  • Design
  • Price


The best Blueair Classic air purifier that you’d love to get, especially when it goes on sale.