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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

#391
post #379

Earlier quoted context omitted.

The fan also sucks compared to something like a Vornado. "Buffeting" of air is not a practical issue when using a fan - you want a fan that can create a lot of air flow. The Dyson fan comes across form first then making up reasons to explain the form retroactively. It feels like an interesting look is the goal rather than something that's actually better. Am I wrong about this? Do people that have the fan like it? Is…

Why is Molekule a fraud?

See: https://www.nytimes.com/wirecutter/reviews/best-air-purifier...

They make nonsense claims about their technology - none of which empirically hold up. They lie about it and are just generally full of shit, quoted below:

"In the summer of 2019, we purchased a Molekule Air (the flagship model) and tested it. We bought an Air Mini that fall and tested it in February 2020. At the time we tested the Molekule Air, the company claimed that its “scientifically-proven nanotechnology outperforms HEPA filters in every category of pollutant.”

Our tests proved otherwise. And by mid-2020, that language had been withdrawn, after many of the company’s claims were ruled against in a case before the National Advertising Division and upheld in a later appeal before the National Advertising Review Board. The Molekule Air turned in the worst performance on particulates of any purifier, of any size, of any price, that we have tested in the seven years that we have been producing this guide. The Air Mini outperformed it, but that’s not saying much: It still gave the second-worst performance we’ve ever seen.

Guide author Tim Heffernan asked Molekule CEO Dilip Goswami why the language was removed. He answered, “The point about ‘in all categories’ is that we see a device that outperforms across all of the categories. Right? So we’re not trying to say that individually, on any particular metric, we would be number one. Right? What we’re saying is, when you look across all the categories, we outperform HEPA. Right? And that’s what we’re attempting to convey with that. And so—it’s fair to say that we needed to re-examine some of the language to make sure that it’s saying what we’re intending to say.”

The NAD and NARB cases made clear that this was an understatement: All of Molekule’s quantified claims about the Air’s performance; all of its claims about superiority to HEPA; all of its customer and doctor testimonials about the ability of the Air’s filter to reduce asthma and allergy symptoms; and many of its claims to have been independently tested, were ruled unsupported. Other claims were ruled too broad."

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

#392

Earlier quoted context omitted.

I did recently buy a HE washer to replace the junker that came with the house. It may just be that I live a (mostly) white collar lifestyle, but I do make a mess of clothes I wear for renovation and yard work or for camping. So far, the new washer hasn't given me any issues with getting things clean. The only adjustment I had to make was learning to use much less detergent than I was used to. There are also just two…

Washers seem to be an exception. My gut feeling is that the real HE improvement was switching everyone from top loaders to front loaders. Front loaders do a great job cleaning and use a whole lot less water in the process.

Front loaders have bad mold issues with the liner though. We switched away from an old one. No regrets.

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

#393
post #316

Earlier quoted context omitted.

I sure did it more than ten times, but quickly learned to be careful and insert the finger slowly into the moving fan.

I'm afraid you missed the joke here =)

I can't tell if they missed the joke about losing 10 fingers and having to stop there, or if you missed their joke that you can insert the same finger multiple times as long as you only lose a bit of a finger each time.

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

#394
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…

The fan also sucks compared to something like a Vornado. "Buffeting" of air is not a practical issue when using a fan - you want a fan that can create a lot of air flow. The Dyson fan comes across form first then making up reasons to explain the form retroactively. It feels like an interesting look is the goal rather than something that's actually better. Am I wrong about this? Do people that have the fan like it? Is…

I had the dyson fan with the heater and filter for a short time, as well as a medify. I was disappointed with both, and returned them.

The dyson looked cool, but the heat function was kinda useless unless you sat right next to it. i might get another one without the heat.

The medify seemed to work well, but it felt like it was poorly made. I kept thinking I could probably diy something just as good. Though the main reason I returned it was because the advertising claimed it came with two sets of filters, when it only came with one.

I bought both of these last year after almost a decade of wanting to get an air filter, and not doing it. The whole industry feels like a scam. This is why I stopped shaving 20 years ago.

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

#395

Earlier quoted context omitted.

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.…

Serendipity happens: I was looking at a number of videos about DIY Dyson fans after I learned that bladeless fans exist. Then this post on HN. Examples https://youtu.be/vyJ4wA-3dnY https://youtu.be/sFRXkH2XjsU

They 3d print well if you have a good printer. I've seen designs that use standard size computer fans, which make them cheap and easy.

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

#396

Earlier quoted context omitted.

My mom still uses her Hoover from the early 70s. It's mostly metal and the bags for it are still readily available at the store. A Dyson would probably clean better, but she's not going to upgrade until her old one breaks, which may be never. That said, it hasn't been completely care free. My parents have had to replace the belts several times, but those parts that are easily available and very cheap. The light bulb…

My wife has caused every vacuum we’ve ever owned to literally catch fire. Ranging from cheap Bissell to expensive Dyson. It’s quite impressive, actually. The cheap ones usually last <1 year while the Dysons last ~2 years. So now we just buy the cheapest one and run it into the ground. It probably doesn’t help that we have 5 animals + 1 husband in the house.

Ouch. Maybe you should be more aggressive about cleaning out the filters? Our Dyson says to clean them every 6 months or so I think, but if your house is especially dirty (say because the dogs track in a lot of dirt and shed) you should do it more often.

If you have not done it in awhile it can be surprising just how much better at picking up dirt it will become after a good cleaning. Because the filters are trying to get down to 2.5ppm they clog easily.

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

#397
post #317

Earlier quoted context omitted.

Says no one who has ever raised kids.

Plenty of people raise their kids this way. When I see parents laugh when their kids fall down instead of panic, I smile. And the best part? The kids smile too, because they're actually looking to their parents for how to react. I'd rather raise daredevils than anxious wrecks. My best friend has a kid who's always climbing on stuff, falling down, getting hurt. That kid is going to grow up to be awesome.

Falling down is totally different than sticking your fingers into a fan.

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

#398

Earlier quoted context omitted.

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.…

Dyson, like Apple, doesn’t make products for nerds like us who are willing to go through that level of effort. Their prices are high because their products are simple and “just work” without much fiddling.

They charge high prices because of marketing. Suckers are willing to pay more than their products are worth because marketing has them convinced it's better.

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

#399

Earlier quoted context omitted.

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... .

Having just gone back to a bagged vacuum, I genuinely wonder why people ever accepted bag-less vacuums in the first place. Aside from the “empty the canister out and watch all fine dust float back into my house” issue, vacuum bags function as one massive filter. It’s not physically possible to build a filter into a bag less vacuum that approaches the size or capability of the vacuum bag itself.

Bagless vacuums will typically have a pleated filter for the fine particles. Pleating expands the surface area.

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

#400

Earlier quoted context omitted.

When I pick up my children from a small fall, and I laugh belittling the hit, they do not feel mocked at, instead laughing with me. I think the kind of insecurity that makes you suspect that people are laughing at you comes later - and if you don't have crappy parents you don't even come close to suspecting that your parents might be laughing at you ... Obviously you don't laugh with big falls and broken arms.

But when your children are with their friends, and their friends fall over, do they laugh? Maybe their friends aren't as confident

They are still very young.

But from my own childhood I can remember that kids are not subtle - if they are mocking you, you will know (names, finger-pointing, jokes, etc.). Whereas if a friend laughs with you about a silly fall, you get a completely different kind of scenario played out.

Coming back to your initial point, and being blunt: showing your children that clumsy falls can be funny, and not to panic about them, does not increase their cruelty towards other kids.

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