Is an $800 purifier best to clean your home's air? We lab tested 5 top brands

To save you time, the best purifiers are: 1. BlueAir 2. Germ Guardian 3. DIY 4. Honeywell 5. Dyson 6. Levoit

Poor Dyson engineer. They clearly cut up his responses. It would have been nice to know what his explanation was since they were the only company willing to talk.

My take away is that, like they mentioned early on in the video, all of them uses HEPA filters so what matters most is the airflow that these purifiers generate through the filters. The reason why that DIY filter works so well is probably the fact its a HUGE fan.

11:20 - Our air under a microscope 12:49 - The test results 16:32 - Talks about the essentials oil diffuser 17:02 - Humidifiers 17:52 - Great tips (aka cheap solution for air purifications)

I rate Dyson for sending someone to talk about this. Too many companies hideaway. Great episode!

Kudos to Dyson for appearing on camera.

I applaud Dyson for coming on camera! I’ve seen so many of these where the companies decline that opportunity. Regardless of the outcome, I’m proud of Dyson!

The host seems so rude and aggressive when questioning the engineer from Dyson. Sure, it can catch the eyeballs when the most expensive Dyson product failed the CADR test, but CADR doesn't define how clean the air is.

I can definitely confirm that Dyson sales people will just show you their product but will never force you to buy. They themselves have told me to research it and if we think it's worth buying then we can always come back.

That one family with the mom coughing in the basement should consider getting tested for radon.

I would give this video an 8 out of 10...they did a good job and included several different perspectives. However, they never mention the size of the area they tested in comparison to the room size recommendations for each product. Naturally the smaller filter will get a lower CADR in a bigger room. Also, I would like to know why particulate count is important and if mineral particulates for example are even bad for us or could even be good for us?? Lastly, as a Certified Mold Inspector myself, I know that a lot more goes into the mold analysis than just a visual inspection and air quality testing. The lab results only show a snapshot of the mold count in that exact time and location. I would be willing to bet that the lady with the mold in her home actually has a serious mold problem and needs treatment.

I actually respect Dyson more now, given that they agreed to interview and the guy raised excellent points too.

One more thing everyone should look for is availability and cost of replacement filters. This will make all of the difference if you intend to use the device longer.

🤣Poor Dave from Dyson. I feel that his in depth explanation was edited. Made him look a right plum.

Dyson is the only one that offers cooling + heating. Its not solely designed for air purification. There's a premium cost to have that all in one device instead of three. If you live in a small space, the fan+heat+air purification in one sleek package from a company that makes insanely dependable products could be worth that premium. Kudos to Dyson for showing up!

I think you should have compared purifiers with more or less the same "room space" on their packaging. Of course, the Levoit loses, it's tiny. That's how physics works.

This could have been a great study. However it was flawed from the beginning. They're not testing Apple to Apple's comparison. The Honeywell that was tested as well as the germ guardian are not comparable to blue air. They're much smaller they're purifiers. They should have used the Honeywell HPA300 which is more comparable to blue air. It's much larger and meant for bigger rooms. You can't compare small room air purifiers with big room purifiers. The CADR ratings will of course be different because they're meant for different size rooms. I can't believe this is actually gotten so many views.

The professor looks exactly what a professor should be.

If you’ve never used an air filter these are great. youtube.com/post/Ugkx_dppjvjF8BYEmPSDTcgCUdRsgWYLX… I ended up with three after starting out with one. The noise level depends on the 1-3 settings with how hard you want the machine to work. You can also upgrade the filters and get one better for pet hair and smells which is a must have in my home. I noticed the air seemed lighter and easier to breathe when running the machine for the first time. Works great every time. Highly recommended!

There's a problem here: The CADR is important, but it doesn't tell you how thoroughly it filters the air. Some of the purifiers shown had carbon filters that absorb gases and fumes, among other things that pass through HEPA filters like the Filtrete too easily. CADR is an airflow metric. You need both good airflow and proper filtration