Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

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

cbc.ca

Post reply on HN
Print view View original

211–220 of 602 posts

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

#211

Post by sorenjan »

reaperducer wrote: post #124
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…

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 That's interesting to me because I've had the opposite experience. I move a lot. For almost decade I moved twice a year. I don't like taking the dirt from one place to the next, so I buy a new vacuum cleaner every time. So I've been though a lot of vacuum cl…

> I don't like taking the dirt from one place to the next, so I buy a new vacuum cleaner every time.

That seems extremely wasteful. Why not just emptying the vacuum cleaner before bringing it to the new place? One person buying 20 new vacuum cleaners in a decade is just one of the reasons this planet is running out of resources.

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

#212

Post by jandrese »

postalrat wrote: post #91
crmd wrote: post #82

Earlier quoted context omitted.

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…

It seems like dyson focuses on over optimizing for problems that they themselves create.

I think they see themselves as reinventing solutions to problems that had solutions created 50-100 years ago but that the manufacturers are still using basically the same 100 year old solution today.

So you have products that are marginally better (because those people 100 years ago were smart too and they have not been completely sitting on their laurels) because it uses modern technology and design informed by modern aerodynamics and the like, but is expensive because it doesn't have 100 years of cost optimization behind it.

Worse, you have products that have 6 months of heavy cost optimization resulting in high precision high power motors mounted in flimsy plastic cases that break the first time you drop them.

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

#213

Post by JohnBooty »

s0rce wrote: post #208
fireattack wrote: post #160

Earlier quoted context omitted.

I'm also curious about running them 24/7.

Mine run 24/7 on low for a few years so far, one is going on 3 years and the other is about 8 months. No issues other than periodic cleaning and filter replacement. Main hint: keep a spare filter before California fire season.

I've actually been running mine on "2" the ("medium") setting for 3-4 years with no problems.

I have asthma, allergies, and pets so.... yeah. Medium it is for me.

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

#214

Post by detritus »

kelvie wrote: post #138
cptskippy wrote: post #118

Earlier quoted context omitted.

Dyson filters aren't consumables. You wash them out and reuse them.

Are they? We have a modern unit (with the 2 stage filter), adn they send a notification when you have to buy a new one, for $99 CAD

The company famed for creating bagless vacuums added a 'bag' to a product that doesn't necessarily need it?

Dyson's stance on Brexit makes ever more sense... .

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

#215

Post by ska »

cptskippy wrote: post #118
radicaldreamer wrote: post #97

Earlier quoted context omitted.

For recurring revenue… selling only the fan, you get one sale and you’re done. Selling the fan but with a filter unit, some subset of customers will replace the filter every 6 months as “recommended” and you have recurring revenue on that fan forever.

Dyson filters aren't consumables. You wash them out and reuse them.

I'm pretty sure there aren't any reusable HEPA filters regardless of vendor.

Lots of units will have a washable pre-filter, but that's to pick up big stuff and extend the life of the disposable part.

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

#216

Post by greggturkington »

notJim wrote: post #195
greggturkington wrote: post #176

Earlier quoted context omitted.

I'm glad they changed it from "insert your hands between two blades of air" to "put your hands under ONE blade." The old design would just push your hands into one side or the other, where the bacteria-laced water from the last person still remained.

I don't understand comments like this, I have never had a problem not touching the sides.

I figured that was why they changed the design?

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

#217

Post by crististm »

Yeah... No! I don't have an axe to grind here but indeed there are more than one way to compare a product.

Air debit is only one dimension. You can pick arbitrary dimensions to compare products depending on which one you want to (if you would) show preference to.

Did they check also the noise level? The dimensions? How long you can run the thing before changing the filters? Do they have some form of regulator or are they always on? Do they fall apart when you bump on them?

It's like comparing processors by their clock speed. Which one 'is outperformed' by the other?

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

#218

Post by dnanabkchsbxb »

ljf wrote: post #34
tidepod12 wrote: post #16

Earlier quoted context omitted.

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.

We must have had a dud as we got the Dyson animal hair one and it was terrible. Battery life was rubbish, the suction was crappy and the pick up just wasn't that good. Ended up getting a gtech which was fine for 2 adults in a small 2 bed house with wooden floors, but now we have kids and a bigger place we got a Shark corded and it is amazing. Literally the best vacuum we've ever owned.

I had a similar experience with the Dyson and then the battery died. After getting the battery replaced under warranty, the machine has worked great ever since.

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

#219

Post by ortusdux »

u678u wrote: post #194
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 think its a good quality fan and a fan heater that also purifies. Purification isn't its only goal, so if you care only about that just get a purifier. Presumably the cheap DIY box did a bad job at heating the air.

Check out dyson's website. They don't even list fans on their product page. It's just variations of air purifiers. They are all advertised first and foremost as purifiers.

https://i.imgur.com/GaYU6ZD.png

https://www.dyson.com/air-treatment

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

#220

Post by cat199 »

BoorishBears wrote: post #172
reaperducer wrote: post #133

Earlier quoted context omitted.

Unless I'm at the library or a Starbucks, I generally don't wear the kind of clothes in public that one wipes hands on.

I had to read this comment like 3 times to parse it... and I'm still not sure I get it Wiping your hands on your pants when there's towels or something is kind of silly, but how on earth does the article of clothing define if you can wipe your hands on it? Are you wearing vinyl pants or something?

think the point is here that things would stain / be too expensive.. jeans don't really "show" if you wipe your hands on them, and if they do, oh well, just part of that 'worn jeans' look
Post reply on HN