We put the Dyson Zone’s air filters to the check. Right here’s what we discovered.


This spring Dyson launched the Zone, which pairs noise-canceling headphones with an air-purifying visor. It was swiftly met with backlash for its funky, bane-like aesthetic. Oh, and it is $949 price ticket. What nobody may have predicted is that, only a few months after Zone launched, a large Canadian wildfire would billow sufficient smoke throughout the East Coast to show New York Metropolis’s skyline right into a surreal orange nightmare. The “orange scare” was a freakishly well timed occasion that drew consideration to the local weather disaster. This, in tandem with the World Well being Group’s (WHO), estimates that 9 in 10 folks world wide are inhaling air that exceeds pollutant limits, must be sufficient to scare anybody – particularly contemplating how rapidly urbanization is rising, exacerbating these issues. Immediately AQI entered everybody’s vocabulary and doubtless quite a lot of folks began giving the Dyson Zone one other look.

Dyson’s popularity as a maker of family air purifiers provides the corporate stable floor to construct on; it’s simply making the tech wearable. The corporate claims that the Zone’s two-stage, sealed filtration system can take away 99 p.c of ultrafine particles and “metropolis fumes.” Dyson’s engineering lead Vicky Gibson-Robinson informed Engadget that the Zone makes use of an electrostatic filter to seize particulates as small as 0.1 microns. That, paired with an activated carbon filter that she claims can soak up fumes and gasses corresponding to nitrogen dioxide (the primary pollutant emitted by automobiles, vans, and buses), is the bread and butter of the filter. Have in mind, although, that the Zone would require electrostatic filter replacements, wherever from each six to 12 months relying on the dirtiness of the town you might be primarily based in. The carbon filter, however, Dyson engineers stated is not going to have to be changed as typically and may solely be swapped out when “it begins smelling.”

The Zone has three air stream charges primarily based in your degree of exercise: relaxation (degree one), mild (degree two), and average (degree three). Gibson-Robinson says one of the simplest ways to get essentially the most out of the Zone is by setting it to auto mode to protect battery life (an enormous level of rivalry which we’ll get to later). “When you put it in auto mode, it can simply ramp up and ramp down because it must,” she stated, which means the Zone is sensible sufficient to know when to extend the filtration charge relying on the wearer’s motion and respiration charge. The extra you pressure and transfer, the extra inhaling and exhaling, and the extra filtration is required.

Gibson-Robinson says that each one the claims made in regards to the Dyson Zone, corresponding to its means to take away superb particles like PM2.5 that may enter your respiratory tract, have been made through testing every a part of the filtration system individually. That means, the electrostatic filter, the activated carbon filter, and the impeller fan have been examined alone. Gibson-Robinson claims that since we weren’t planning to disassemble the machine throughout our exams, we’d discover that the Zone’s means to filter pollution could be even higher than claimed.

Engadget Video

Engadget picked three places to check how properly the Zone carried out, together with a clear lab as a management, and a subway station in New York Metropolis, adopted by a busy intersection. We reached out to specialists at NYU’s Grossman College of Drugs who work in partnership with the College’s Langone’s Heart for the Investigation of Environmental Hazards to assist us check the Dyson Zone’s filtration system.

“The subway is an efficient substitute for a worst-case state of affairs,” stated Terry Gordon, NYU Professor on the Grossman College of Drugs, who helped Engadget run these exams. Gordon, who has researched the underground transit techniques and its well being results on commuters, says that in a state of affairs the place an air high quality emergency will not be going down, the air high quality inside a subway station is comparable. That means, how properly the Zone does within the subway station could be an excellent indicator of how properly it might carry out throughout one other acute air air pollution disaster.

As soon as we agreed on a mission, our purpose was easy: check how properly the Zone eliminated pollution from the air surrounding a wearer’s respiration zone, no pun supposed. We primarily used two lab-grade units: a transportable particulate monitor and a particulate counter. The moveable particulate monitor gave us real-time measurements of PM10 and PM2.5 particulates within the air, that are the 2 important forms of pollution scientists care about and differentiate primarily based on measurement. In the meantime, a particulate counter is used to measure the focus of pollution left within the air. In a great world, we’d have preferred to check the Zone’s means to filter out risky natural compounds (VOCs), or poisonous chemical substances that come from residence merchandise and pure sources like benzene, formaldehyde or acetone, however these compounds weren’t simply detectable within the metropolis streets or on the subway by our handheld VOC detector. This made sense for the reason that subway tract is usually run on electrical energy, not coal or fuel.

Dyson Zone Graphic


For every check, we collected information whereas the Dyson Zone’s visor blew air in my face, as a substitute of a dummy head. We did it this fashion for 2 causes. For one, the lab-grade dummy head was not all the time detected by the Zone, so the filter wouldn’t run correctly. Additionally, this allowed me to incorporate real-world person expertise in our evaluation.

So first, within the NYU lab, whereas the visor blew recent air into my face, Gordon’s Ph.D. college students David Luglio and Antonio Saporito held clear tubes related to each the moveable particulate monitor and the particulate counter within the path of the airflow. This occurred within the small cramped house between the plastic visor and my lips. By doing this, we have been capable of gauge how the numbers recorded on the units modified when the filter was turned on and off. As a result of it was a clear lab, the air high quality was already fairly good. After we turned on the filter to charge three, the amount of PMs measured by the monitor dropped to zero. No shock there.

Dyson Zone x NYU lab testing.

Engadget Video

We utilized the identical technique on the 14th Avenue-1st Avenue subway platform in Manhattan’s Decrease East Facet, which is usually flooded with school college students taking the L practice into Brooklyn. Utilizing the particulate monitor and the particulate counter, we recounted how the filter did earlier than and after being turned on. The outcomes clearly demonstrated the Zone’s effectiveness. The ambient particle monitor went from giving a studying of 200 micrograms of particle matter per cubic meter of air earlier than it dropped near 50. This meant the air high quality went from harmful to regular with the Zone operating a degree three.

In the meantime, the particle counter went from measuring 20,000 particulates per cubic centimeter to below 1,000 on the degree three. So as a substitute of all these superb particles going up into my respiratory tract, they have been wafted away via the filtration system.

NYU doctoral scholar David Luglio, whose thesis work has primarily targeted on the well being results of long-term publicity to subway air high quality in massive metropolitan areas in cities like New York and D.C., was shocked by how properly the Zone filtered the subway air. “Air high quality within the subways generally, wildfire or not, might be one of many worst environments to be in in New York Metropolis as a result of concentrations are sometimes at the very least 100 micrograms per cubic meter, and out of doors on a typical day it’s only 10 or much less.”

Malak Saleh wearing Dyson Zone.

Engadget Video

In our remaining check, we used the identical technique on the busy avenue nook proper throughout from the subway station. Once more, the Zone did its factor. Readings from the 2 reside displays spiked and dropped again-proving that the Zone truly labored.

“It is Dyson and Dyson is aware of particles and filtrations, that is what they’re well-known for,” Gordon stated. The Dyson Zone proved it could take away ambient particles from the encircling air, he continued. These particles “are the primary contributor to the adversarial well being results of air pollution-more so than ozone, NO2, SO2,” and finally sporting a tool just like the Zone will defend your lungs and your coronary heart from the adversarial well being results of long-term air air pollution.

That is all nice in concept. Nonetheless, there virtually all the time must be a catch with experimental units that discover new classes just like the Zone does: the battery life. Sadly, whereas testing, the Zone would solely final about an hour and a half. We needed to maintain a charger useful in case it determined to close off. This, coupled with the truth that we weren’t even utilizing the audio function whereas testing, informed me that the machine remains to be a great distance from being sensible for on a regular basis use. Dyson is absolutely of this concern. “Though the audio system and the airflow system are two separate techniques, they’re sharing the battery,” Gibson-Robinson stated.

You solely have to have a look at what Dyson has accomplished with the vacuum cleaners, Gibson-Robinson defined. To attract a comparability, Gibson-Robinson introduced up her first handheld vacuum. “[It] had a runtime of one thing like 9 minutes, 15 minutes, one thing like that and now my latest one, which I acquired the opposite week, truly blew my thoughts. It is like 60 minutes of runtime,” she continued.

It took the corporate a decade to make that leap. Whereas Dyson’s capability to spice up battery life in its handheld vacuums might be an excellent indicator that there are a great deal of positive aspects to be made for the Zone, it’s practically unimaginable to justify the $949 asking worth. That, coupled with the truth that the local weather disaster is worsening daily, some customers (myself included) may not be keen to attend for Dyson.

Nonetheless, Gibson-Robinson says the compromise on battery life “felt enough” in an effort to provide a tool that might double as a headphone and a filter. “We have clearly needed to stability between as a result of the batteries are housed in that headband… and we have needed to stability consolation and weight with battery life and efficiency,” she stated. However finally, “It is engineered and designed to be worn primarily as a pair of headphones after which secondary, which pains me to say as a result of I did all of the filtration stuff, the secondary operate is that it is a air purifier,” she added.

Moreover the disappointing battery life, I wasn’t a fan of the plastic visor itself. Though Dyson claims it is tremendous sturdy (Gibson-Robinson even dropped the visor from a balcony as soon as out of curiosity), the removable plastic felt like a clumsy appendage at occasions. You may pull the visor down to take a seat under your chin when you’re sporting the headphones in the event you do not need to run the filter on a regular basis. It’s also possible to flick it again up and have your face lined in a second if you’re able to activate the filtration mode. However one thing about it hanging beneath my chin when the filter was off felt sort of gross after some time.

Malak Saleh wearing the Zone in the NYU lab with Dr. Terry Gordon

Engadget Video

When you’re a germaphobe like me, there’s loads of motive to fret about one thing being so near your face on a regular basis. For one, it bumps into your face while you put it on in a rush and don’t modify it correctly. It additionally comes off fairly simply, making it straightforward to drop on, say, a gross subway station flooring. On the plus facet, though the fabric feels low cost and flimsy, it’s at the very least straightforward to scrub because it’s detachable and wipeable.

Nonetheless, there is a heaviness to the machine general. I do not really feel like I can simply brandish the headphones round my neck, particularly with the visor up. Not solely is it uncomfortable after just a few hours of wear and tear, nevertheless it’s positive to draw consideration, which isn’t very best once I simply need to really feel invisible on my commute residence.

If I have been actually involved with my respiratory well being and wished to restrict my each day publicity to pollution, I’d select one thing extra sensible and reasonably priced. Is it good to know the Zone does in truth work? Positive, however why would I drop $949 on this once I have already got a pair of fine noise-canceling headphones, and cheaper filtration options exist. Moreover the usual Okay-95 masks, a chemical respirator with filters utilized in development and for portray, there are moveable HEPA filters you should buy off of Amazon for below $50 bucks. They run for about 200 to 500 hours and have a filtration effectivity of 99.7%. It principally offers what the Zone presents in its degree one filtration mode, however at a fraction of the price and with none of the battery limitations.

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