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Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

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Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#81

Post by DanBC »

sdfhbdf wrote: post #13
AlexandrB wrote: post #3

Dyson : Air Products :: Beats : Audio Products Pretty much every Dyson product I've used, from the public bathroom air "blades" to the vacuums, seem like a gimmicky, inferior products with a premium price tag. None of them do their intended job better than older, cheaper products in their category. I know James Dyson is regarded as a genius engineer, but the consumer product company bearing his name seems to be 99% m…

Interesting since the cordless vacuum (dyson v11) I use at home seem to work really well. The previous big corded model we had (Dyson DC33) was also built like a tank and served for almost 10 years before being passed on and still works so maybe I bought into marketing or maybe just different people have different experiences with Dyson products?

> and served for almost 10 years before being passed on

Wait what, is ten years supposed to be a good lifetime for vacuum cleaners?

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#82

Post by crmd »

AlexandrB wrote: post #3

Dyson : Air Products :: Beats : Audio Products Pretty much every Dyson product I've used, from the public bathroom air "blades" to the vacuums, seem like a gimmicky, inferior products with a premium price tag. None of them do their intended job better than older, cheaper products in their category. I know James Dyson is regarded as a genius engineer, but the consumer product company bearing his name seems to be 99% m…

Check out AvE’s tear down of a $500 Dyson hair dryer.[1] He was expecting to ridicule it but was instead blown away by the engineering - tiny high torque zinc cast brushless DC motor, CNC-milled impeller, etc.

It’s a good watch, including FLIR performance analysis, Fourier analysis of bearing noise, and more.

In summary it’s definitely more engineering porn / extreme overkill than marketing bs.

[1] https://youtu.be/j-vJxez9UF8

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#83

Post by beefalo »

tidepod12 wrote: post #16
sdfhbdf wrote: post #13

Earlier quoted context omitted.

Interesting since the cordless vacuum (dyson v11) I use at home seem to work really well. The previous big corded model we had (Dyson DC33) was also built like a tank and served for almost 10 years before being passed on and still works so maybe I bought into marketing or maybe just different people have different experiences with Dyson products?

Yea, it's weird reading this thread to me. I have a cordless Dyson vacuum and it is by far the best home vacuum I have ever used, both in terms of suction power (even compared to non-cordless ones) and in terms of other usability/features.

I think Dyson benefits from the same effect as Apple/Tesla/Beats/etc. Their products are good but their triumph is upselling. Dyson cordless vacuums are like $800+, was your previous one that expensive?

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#84

Post by dyno-might »

I did a bunch of tests with a similar filter (albeit comparing to a cheaper commercial purifier)

https://dynomight.net/2020/12/15/some-real-data-on-a-DIY-box...

It's crazy that commercial manufacturers usually don't even attempt to provide data like this to show that their products actually, you know, work.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#85

Post by hundchenkatze »

DanBC wrote: post #81
sdfhbdf wrote: post #13

Earlier quoted context omitted.

Interesting since the cordless vacuum (dyson v11) I use at home seem to work really well. The previous big corded model we had (Dyson DC33) was also built like a tank and served for almost 10 years before being passed on and still works so maybe I bought into marketing or maybe just different people have different experiences with Dyson products?

> and served for almost 10 years before being passed on Wait what, is ten years supposed to be a good lifetime for vacuum cleaners?

> before being passed on and still works

They said it's still working, so seems like its lifetime is greater than 10 years.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#86

Post by vondur »

AlexandrB wrote: post #3

Dyson : Air Products :: Beats : Audio Products Pretty much every Dyson product I've used, from the public bathroom air "blades" to the vacuums, seem like a gimmicky, inferior products with a premium price tag. None of them do their intended job better than older, cheaper products in their category. I know James Dyson is regarded as a genius engineer, but the consumer product company bearing his name seems to be 99% m…

I've used Dyson's hand dryers in a public restroom. They seem to work really well compared to the standard hand dryers.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#87

Post by sudosysgen »

KaiserPro wrote: post #80
cpmsmith wrote: post #57

Earlier quoted context omitted.

> the researchers attached high-efficiency particulate air (HEPA) filters to the dryers, which would eliminate most of the bacteria from the air passing through the dryer. As I recall, one of the selling features of the Dyson Airblade is that it has a HEPA filter built-in.

they might have a hepa filter, but the output drags a tonne of air with it. They are pretty unhygenic, but I'm not sure how bad it is compared to having wet hands.

Maybe one could make an air drier that sucks air around the hands and into a filter instead of onto the hands?

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#88

Post by steve_adams_86 »

rconti wrote: post #75
post_break wrote: post #2

I bought an expensive Dyson air purifier for a couple of reasons. It has a remote so I can turn it on from bed. It looks attractive. The sound profile is much different than a box fan for sleeping at night. It can analyze the temperature, humidity, and air quality in real time and turn on if it notices air quality is getting bad. It also oscillates. That said yes it was expensive, but it replaced needing a fan for co…

It's obviously popular to hate on silly-expensive tech, but these quotes were telling for me: > "I think what we're trying to do is pull back a little bit from the CADR metric," he said. "Not everyone needs an enormous CADR, has huge rooms or incredibly dirty air." > Several experts told Marketplace the CADR is the most important metric and an internationally recognized benchmark. > "CADR is what you want to know, pe…

Yeah, it felt a bit like me (a software developer) recommending to someone to use Google Cloud for their blog infrastructure rather than some basic one-size-fits-most solution that may or may not meet their needs forever.

These people come from civil engineering backgrounds where air filtration requirements might often be thought of from an industrial or at least much larger than a domestic/micro loft scale.

Having any air filtration at all at a smaller scale is generally just great if you replace filters often enough, don't aren't near industry or aren't in a city, don't cook at home often... Even then, a smaller air purifier's going to do an awesome job if you let it run regularly.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#89

Post by ortusdux »

Karawebnetwork wrote: post #61
ortusdux wrote: post #4

I still cannot get over this product. They whole selling point of a dyson fan is the 'air multiplier' tech, which creates a low pressure zone that propels air through the ring. According to dyson, this tech can move 15x more air than the fan in the base of the unit. Why in the world would you build an air filter around a system that does not directly interact with 93% of the air it moves? https://www.jameco.com/Jamec…

I live in a large loft-style apartment on two floors which is actually a large room. There are only a few windows and they are placed in a way that no air draft gets created. When I bought a purifier, one of the things I was looking for was air movement. I position my Dyson so that there's a draft throughout the apartment. I thought this would improve the air filtration because the air would move through my home and…

My issue is the cost.

My local costco has these units in store for $800 USD. Further down the isle they have oscillating tower fans for $30, and smart air filters for $100. I bought two pairs of each before winter. The fans are quiet, have plenty of control options, and non-volatle memory so you can use them with smart plugs. The air purifiers are 4 stage, with active charcoal and a long life (6 mo, 20$) hepa filter. They are wifi enabled, monitor and log air quality, and controllable from a phone. The purifiers should filter my bedroom's air once every 10 minutes, and ~15 min for my living room. This was all under 300$.

Edit: to answer your question, the regular dyson fans are great. They quietly and efficiently move air. Pointing one at a real air filter should really help the filter do its job. My issue is that dyson built a small filter into their fans and doubled the price.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#90

Post by duxup »

phatfish wrote: post #46
duxup wrote: post #20

Earlier quoted context omitted.

I've had a good experience with a Shark vacuum. It had high ratings from Consumer Reports. I bought one and found it did a great job with heavy carpet and rugs, and wood floors. It is easy to take apart, clean, etc.

I have a Shark also, sub £200 (£170 i think), pretty sure a similar Dyson was easily twice the price. It is quite, light (its one of the hand held models) and certainly powerful enough for general use around the house.

Yeah the build quality really impressed me about the Shark.

It's light, but has been really powerful, durable.

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