What hepa air purifier units do you guys use in your homes, apartments, or offices? It seems like every $100 below air purifier is chinese junk that doesn't actually filter and just blows air around. What do you guys entrust for your breathing pleasure?
>>103251145>can be loudcorsi rosenthal>need to be quietcorsi rosenthal with PC fans
>>103251145Her tits are huge
>>103251367You think that’s huge?
>>103251471Tpbp
>>103251471>>103251509Yes you porn addicted morons
>>103251367That's because she breathes in clean air.
>>103251145Chinese JunkWith eucalyptus essence(locally sourced)
>>103251145>$100 below air purifier is chinese junk that doesn't actually filter and just blows air aroundair purifier is essentially blowing air through a filter. There's no elaborate tech, even chinese junk will work as long as the filter you put in is high quality hepa filter>muh ozone, electrostatic, ion air filter techthey're all just marketing bs, essence of the tech is blowing air through a filter.
>>103251145Blue Air 211+It's not like some magic 100% seal but it still catches shitloads of dust. One in the bedroom, one in the living room, one in the office.
>>103251145how long does a filter last /g/? I vacuumed my filter for the first time after 4 months (my air purifier has a cleaning timer), but I wonder how long until I have to completely replace it
>>103253664if its caked in debris its just gonna start blowing mold into the air, you should replace it
>>103253539>they're all just marketing bs>muh hepamax dunning-kruger post
>>103253539>>103251145>chinese junkEvery consumer 'air purifier' is Chinese junk that gets BTFO by DIY units because their air exchange rate is fucking atrocious. This is because they all use HEPA filters which are far too dense for a good air exchange rate + carbon filters which add even more resistance for no gain. You're better off just opening your windows for an hour to deal with VOCs (carbon filter target) unless you live in a Chinese or Indian city. Here is what you need fundamentally: Basic (but noisy) Corsi-Rosenthal box >any box fan of reasonable quality >a shroud to channel the airflow over the fan>MERV 13 20"x20"x1" >see: any of the dozens of corsi-rosenthal tutorials Improved design (quieter but harder to build)>some sort of 14" fan>a shroud to channel the airflow over the fan>MERV 13 16"x25"x1" >see: this autists tutorial for the design and explanationhttps://www.youtube.com/watch?v=KxPk8yOH-z4BONUS ROUND>use hot glue instead of tape as it off-gasses little to no VOCs >why MERV 13 instead of HEPA? While it doesn't filter down to the same level as HEPA there is much less resistance to overcome and therefore more overall air is exchanged through MERV 13 filters. We're not filtering 99% of toxic particulates, we're just trying to reduce allergens and ambient residential dust. >>103253539>even chinese junk will workno>hepalmao>muh ozone, electrostatic, ion air filter techNot only are these features a meme, they're downright toxic and spew newly created VOCs out into the room you use them in. >>103253701>doesn't contribute anything valuable>muh dunning-krugerfaggot/thread
>>103251145>>103251309>>103254791>corsi rosenthal with PC fansHuh, well there you go. Everyone has been busy making an even better, possibly more expensive, design. It could also be DIY'd with even cheaper shit lying around. https://cybernightmarket.com/products/the-nukit-tempest-pc-fan-air-purifier-kit-internationalhttps://www.youtube.com/watch?v=Fm43E5rO9Ro
>>103254791Not especially concerned about dust myself. I use a purifier to reduce VOC’sI’m sure I could rig a box fan to a carbon filter but I can afford a quiet good-looking one. But what’s the deal with dust? Is a bit of dust that bad?
>>103251145I got the one from Ikea to capture dust, it has an HEPA knock off filter and charcoal filter. I leave it on auto and seem to be doing a decent job.
>>103255287>rig a box fan to a carbon filter but I can afford a quiet good-looking oneYeah this is also something you could do by swapping out one or two of the sides of a standard box configuration with carbon filters. >I use a purifier to reduce VOC’swell that's a very inefficient way to reduce them, instead think about it like this:Getting rid of the source THE most effective way to reduce them >deodorant aerosols - such as in a toiletextraction fan or airflow (open window)>plastic-based textiles passively off-gas VOCs, avoid them if possible since they are also endocrine disruptors against the skin / breathed>highly fragrant detergents switch products and definitely do not use fabric softener since it's loaded with endocrine disruptors (and therefore VOCs). Both of these linger in textiles for weeks or even months. >cooking fumes - biggest one extraction fan or airflow >waste items carefully consider which waste items produce more smells (VOCs) and have a separate, smaller trash bag to more frequently dispose of said items >smoking you should really be doing that outside, if you're doing it inside a purifier is fucking pointless unless it's on top of where you exhale smoke. >environmental VOCsunless you already have a full-house air exchange system where you're pretty much sealed in and only filtered air enters, you're going to get SOME 'city' VOCs like car fumes etc. they are also fairly overblown unless you literally live in the center of a city, in which case, sure carbon filters might be worth it if you need to keep windows shut most of the time. Otherwise the worst offenders are usually inside the home itself as above, rather than external infiltrates. >but I can afford a quiet good-looking oneyeah you CAN afford a good-looking one but it's almost certainly noisier or has a lower air exchange rate than something you can DIY. Not to mention the expensive proprietary filter replacement cost.
>>103255287Now getting back to your question>But what’s the deal with dust? Is a bit of dust that bad?It's partly convenience since you will dust less and partly for health since endocrine disruptors and general fine particulates are terrible for respiratory health, even if you don't have allergies. Cooking fumes for example are actually comprised a lot more of particulates than you would expect (as opposed to just VOCs). The same is especially the case for smoke, which is a big concern for fire-prone areas. Hope this all helps
>>103255638While I'm thinking about it, unvented clothes driers are also fucking terrible for indoor air quality, perhaps one of the worst sources for particulates.
I have a bunch of 85mm brushless fans which can run in pairs variably at 22V, 15V, 10V & 7V. Can I use these successfully in a CR setup? They are even simpler than PC fans in the sense they can just clamp on with a screw cap. At the most simple I can cut holes in cardboard and clamp them on. Can I get decent CFM with these?
>>103255715>CRcould you elaborate on wtf CR is?>printer fansWhy would you subject yourself to such torture? If what you're asking has anything to do with extraction or air purification, no, 85mm fans would have to run at RPMs high enough that it would be audibly annoying. 140mm is the sweet spot for price and performance when it comes to PC fans.
>>103255753corsi rosenthala naive search gives me this eqn >1L/s≈2.11888CFMHere are the specs from the manufacturer for Burtle AC08 fans22V: 100l/sec*115V: 72l/sec*210V: 49 liters/second7V: 34l/secAt the quietest 7V setting, and they are pretty quiet, gives me 74 CFM per pair.So if I have 3 pairs running at 7V I have roughly 225 CFM.At 10V, 311 CFMAt 15V, 457 CFMAt 22V, 635 CFMI'm not sure how the cost performance works out but the cost is effectively zero since I already have these fans. They can assemble and screw onto cardboard after removal from my clothjngI fail to see much downside other than being less efficient
>>103255859>635 CFMFilter resistance and surface area math will take a shit all over that pre-filtered 600 CFM as opposed to proper units which are pulling 300 CFM while filtered. These would probably be okay for ventilation, as in direct extraction near the source of emission like a solder station, but probably shit for whole room applications. You also failed to mention the single metric I was interested which was noise, so I'm a lot less interested in indulging your jerry-rigged nonsense.>I fail to see much downside other than being less efficientThe downside is that they are probably catastrophically less efficient. They're up against a 20"/14" fan or several 140mm that are purpose built to move as much air as quietly as possible. >"yes I'm poor anon, how did you know?"and that's okay>which fans are cheap and good then? Your local mart that has a pedestal fan/desk fan/box fan or alternatively Thermalright TL-C14 fans from Aliexpress I guess? Combined with the aforementioned designs that I already posted in this thread. The fundamental point is the amount of noise you're going to make probably isn't worth the filtering capacity. Yours truly, anon who isn't from SEA, South America or Eastern Europe.
>>103255123I want a real pc case that supports hepa filters on the intakes
>>103253602I didn't like mine. The lights didn't turn off and it was a bit loud. I got a smaller levoit and it's more configurable but I still kind of think they're a meme, at least for dust reduction.
>>103256099>I want a real pc case that supports hepa filters on the intakes1. Nothing I've referenced is HEPA filtered, they're MERV 13, explanations about filters in above replies.2. If you want PC filtration and you're a smooth brain who doesn't want to think, 60 mesh is basically the best balance of airflow and filtration. Here, you're welcomehttps://www.aliexpress.com/item/4001135784565.html
