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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

#431

Post by Dylan16807 »

mindcrime wrote: post #362
Dylan16807 wrote: post #282

Earlier quoted context omitted.

I'm not sure what you're implying, because both interpretations are valid to downvote.

I'm saying that this statement especially when your "question" is an argument hidden behind a question mark, is not consistent with the suggestion to "assume good faith" espoused in the guidelines.

Ah, I see.

I will note that people make arguments via questions pretty often in normal conversation, so that's not necessarily an accusation of significant bad faith. It could be more of a complaint about rhetorical technique.

But let's treat it as an accusation of bad faith. In that case, we have a deeper issue. Assuming that it's a real question asked in good faith is actually the weakest plausible interpretation, because the link makes it a self-disproving theory. Honestly the tongue-in-cheek interpretation is probably the strongest one.

There's no way to treat it as a strong argument and as a real question asked in good faith.

Also it can be okay to downvote misinformation even when the commenter didn't do anything wrong.

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

#432

Post by codemac »

nostrademons wrote: post #368
sdljfjafsd wrote: post #365

Earlier quoted context omitted.

Why did you believe the box fan did better? Did you do any kind of testing to verify that? The Blue Air's CADR is 2.7x that of a box fan. I do agree that the box fan solution is a great low cost option for small to medium rooms, but if you need 1 device to purify a large area, it's not gonna cut it.

No objective data, because what I care about is usually "Am I choking on smoke? Will I stop choking if I run the air filter?" Subjectively we were still having problems with just the BlueAir (~1000 sq ft apartment), add the box fan and things got better, take away the BlueAir and things are still better. The filter on the box fan also got black faster, which is our indication that it pulled more particles out of the…

> which is our indication that it pulled more particles out of the air

This is not a good indication.

The larger black particles are not nearly as harmful to you, and generally just fall to the ground. BlueAir and other vertical filters attempt to make sure they don't waste your filter on these large objects, and pull the smaller particles out of the air. Box fans pull a lot off the floor, which isn't super helpful.

The CADR takes into account the differences you speak of, because it measures the amount of clean air. You may enjoy the fans more, but the filter material being the same doesn't mean a box fan cleans air any better.

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

#433

Post by jdmichal »

cma wrote: post #399
ashtonkem wrote: post #309

Earlier quoted context omitted.

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.

Bagged vacuums also typically have pleated filters at the air outlet, after the bag.

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

#434

Post by treeman79 »

itsoktocry wrote: post #332
SamBam wrote: post #321

Earlier quoted context omitted.

We have two cheap, basic standing fans with the standard wire guard around them. At various ages we wondered if the kids could put their fingers in and touch the blades, and so prompted them to (while the fans were off, of course). At no point could the kids' fingers get to the blades. Either their fingers were too short, or, eventually, too fat.

Yeah, I'm skeptical that any reasonably new fan under modern safety standards could a) allow children's fingers to reach in to the blade, or b) do any real damage if they can reach it. The idea that it's a Dyson or fingers get chopped off is funny. But I guess people have to justify spending $500 on a fan.

Grandma had an old metal fan. I learned the hard way a few of the protective wires were missing. Not so fun times.

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

#435

Post by tw04 »

Judgmentality wrote: post #324
jb1991 wrote: 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.

Plenty of people need to rethink their parenting then. I laugh when my kid falls down.

I scream when I saw my kid trying to stick a key into an electrical outlet, and I screamed when I saw my kid trying to put a finger into a vornado fan.

Modern fans aren't the same as the box fans we grew up with. And adult would likely walk away with an emergency room bill and a bunch of stiches. A small child would likely lose a finger.

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

#436

Post by hnick »

dwaite wrote: post #301
WiseWeasel wrote: post #291

Earlier quoted context omitted.

They’d probably only do it once. It builds character, similar to == in JS or PHP.

They'd probably do it no more than ten times.

I just feel bad for all the kids who won't feel the joy of talking into a fan and making a funny voice :(

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

#437

Post by post_break »

ListenLinda wrote: post #357
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…

Compare to your furnace (on fan mode) + air filter ... > It has a remote Check > It looks attractive Check. It's invisible. > sound profile Check. Furnace fans are in the garage. > analyze the temperature, humidity, and air quality Nope. But purpleair will sell it to your for $175. > oscillates Check. Covers entire flat.

Check your electric bill vs running a fan all night.

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

#438

Post by jamiek88 »

ortusdux wrote: post #227
Karawebnetwork wrote: post #203

Earlier quoted context omitted.

While it may not be the best, it still does the job. My partner smokes indoor when I am not present and there's no smoke odor when I get home. According to the chart on their app, the peak low air quality from several cigarettes goes away within an hour or so. https://imgur.com/a/0qgwT1F

I've never claimed that it does not filter, just that it is a fraction as effective as the alternative at 5x the price. We heat with wood in the winter and some smoke escapes when you open the door to tend the fire. My $100 unit filters the living room back down to the baseline in ~15 min.

Can you let me know the unit you have please?

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

#439

Post by BoorishBears »

reaperducer wrote: post #343
BoorishBears wrote: post #172

Earlier quoted context omitted.

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?

how on earth does the article of clothing define if you can wipe your hands on it? If I'm wearing $50 jeans, I might wipe my hands on them. If I'm wearing a $2,000 suit, I won't wipe my hands on it.

I've wiped my hands on my suit before because

a) it's just water, and very little of it at that since you do the directed shake into the sink first

b) the thought of what I'm wearing never enters my mind when I wipe my hands on my pants

I don't think anyone really does it purposely, you just blank for a second and the action is done and now you have a wet spot on your pants

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

#440

Post by bscphil »

patrickk wrote: post #162
reaperducer wrote: post #124

Earlier quoted context omitted.

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…

AMA from a vacuum technician: https://old.reddit.com/r/IAmA/comments/7gmsoe/iama_reddits_o... IIRC he recommends Miele vacuums.

> Dollar for dollar, a bagged vacuum, when compared to a bagless, will almost always: ... Cost less to repair and maintain (Often including consumables).

He says elsewhere in the thread that "you're going to budget more than [$400] if you want a quality vacuum". He calls anything under $200 "pure shit". He recommends cleaning the brush roller monthly, and changing the belt in the vacuum yearly. He recommends a brand that sells a pack of bags and a filter for $100 that's "a 2 year supply".

Sometimes I wonder if people in threads like this Reddit thread live in the same universe as me. So many times it's cult-think to justify spending absurd amounts of money. (E.g. "obviously that $200 fountain pen is going to write so much better than a $30 Lamy.") The trap is when you start thinking "people who really care about X buy Y brand", and then you start thinking that way about everything.

For reference, I own an upright bagless Black and Decker that I bought from my local big box store for ~$70 over five years ago. I have never replaced any parts. I've cleaned out the brush maybe once in that time. It still sucks just as much as it does when I bought it (you can fill up half the damn canister on one vacuuming run). Even granting that I could get a bagged vacuum that would last the rest of my life for free, the $50+ a year for maintenance would cost me more.

(Granted, a more expensive vacuum would probably clean better by some metric, but this vacuum does not leave any noticeable dust or debris or my very low pile carpet.)

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