I’d like to get one that has widely available filters and would prefer to spend less than $250 as much as I would like a Dyson one. It’s only for an apartment so I don’t think I need something massive but I do live above a busy road.
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When the air turned orange from the Canadian wildfires last year, I had massive, massive headaches from the smoke. On the recommendation of Wirecutter, I bought a Coway, and my headaches cleared up.
I’ve been very happy with it. The low and medium settings are quiet, while the high setting is a bit noisy for me. When the wildfires were running, I had it on low or medium all the time and it was fine. Since then, I mostly have it on Eco mode, where it samples the air periodically and kicks on at whatever speed it thinks is necessary. Mostly it just quietly pops on at low speed for dust or pollen or whatever, and I rarely notice that it’s done so. It always kicks in at high speed for a few minutes after I’ve changed the cat’s litter, and once it noticed that the bread was starting to burn in the oven before we did, lol.
Anyway, I got a Coway based on Wirecutter’s recommendation, and I’ve been very happy with it.
Edit: I got the 200m, which covers like 1700 square feet.
If looks dont matter, I’ll recommend the same thing I always do when people want an air purifier.
Look into making a Corsi Rosenthal Box. They’re surprisingly effective, and dirt cheap.
Alternatively, a single Merv-13 filter that’s 4 or 5" in depth (20x20x5) taped to the box fan works just as well in a smaller footprint, and still allows you to direct the airflow at someone.
Thanks for the link. Very neat
It’s not just about aesthetics. That DIY box will be loud as hell.
That’ll help me sleep
As mentioned in the article these can be quieter than a retail unit. The large fans move a lot of air and the large filter area means it’s easier to pull that air through; both combined mean a lower fan speed is needed for a given throughput.
They can be. Because of course there are poorly made commercial units that are only quiet because they have low CADR. But you’ll never be able to get a DIY box as quiet as a well made unit, unless you basically engineer your own air purifier device, use blower motors, etc., but that’s not a Corsi-Rosenthal Box.
I have one. It’s not that loud. Even when you are standing right next to it it is easy to have a normal volume conversation.
Does anyone know where I could find some 20-in wide charcoal filter cloth sponge material?
I would like to be able to have my filter reduce odor in the home as well but I can’t seem to find anything other than little 4-in strips.
Is 24inch * 100 feet enough?
Edit: They have the foam as well, but it appears to only help against dust particles, not smell. https://duraflowindustries.com/product/381/Duraflow-Filtration-Air-Filter-Foam-Roll-Media-24-x-25-x-6.35mm-(1/4)
Nearly $400 might be a touch out of the price range, but thank you! At least I know that it exists so it’s worth keeping on searching.
Haha, I figured but it’s the best I could find in the moment.
They have pieces at 16*24 inches, but I couldn’t find another that has 21 inch width.
Beat me to it. I’ve just been taping high quality filters to the back of my box fan, not as good, but helps in a pinch.
This looks really cost affordable and efficient, but I’m not sure my wife will go for the DIY aesthetic.
I’ve been happy with Coway.
Got a Coway too and a like it. Airmega 300
Don’t waste your money on anything that doesn’t have a HEPA filter, that’s the golden standard.
Make sure you’re doing a bit of math on how much air purifying power you need, what works for a 100 sq ft room with an 8 ft ceiling is going to be insufficient in a 400 sq ft room with a 10 ft ceiling.
Fortunately, someone has made a nice calculator for that here.
Winix and Honeywell have been good brands in my experience.
+1 for Winix. I’ve had several of the 5500-2 units for 2-3 years now. They do a good job and I appreciate that they have HEPA + charcoal filters so eliminates more than just particulates. My main complaint is that the lights don’t fully turn off at night so I always have to cover them with something (usually a T-shirt). Otherwise I really like them.
get yourself a roll of black electrical tape and cover up all the LEDs and brand logos in your place.
HEPA filters may not be necessary - it seems that homemade air purifiers with standard filters can outperform them in clean air delivery rate, arguably the most important factor for a purifier. The air may not be as clean with each pass through it, but it’ll move much more air.
I use the Amazon, not the online retailer, the rain forest.
Levoit has decent ones for under 100$ idk how big your apartment is but theyre typically meant for a single room. So maybe get 2 and put 1 in the living room and 1 in bedroom?
I’ve been using a blueair one for a couple years
What are you hoping to filter with it? I have a general purpose Honeywell Insight, it works well enough for my allergies and pet dander in my apartment. I think I paid something like $200 for the unit 3 years ago, but filters are $85 a year for it - pricey but they’re widely available.
I guess that’s something I should be more forward with. I don’t really know what I am trying to filter out. I feel like my apartment can feel stuffy at times and agitate my sinuses but that may have to do with my AC unit pumping largely unfiltered air from the a busy downtown area into my unit
I’d recommend you also get a cheap (likely $5-10) hygrometer to check the humidity levels inside, getting it to stay between 30% and 50% is best for air quality according to the EPA. If it’s above or below that you’d want to get a dehumidifier or a humidifier.
Whatever you buy, make sure to remove the plastic wrapper of the filter before use.
Ask me how I know
Did it melt or something?
no, it just won’t suck air in and result in a filter that does basically nothing
I have the round IKEA one, works fine.
Mind linking it? I went there recently and didn’t see any air filters.
Yo, looks like you’re into gaming.
Someone made an air purifier similar to a gaming PC chassis. Using a special metal case and with space for filters. About as good performance as the box fan/filter abomination but with easier replaceability.
Pretty sure you can find a place for rgb fans too. https://housefresh.com/nukit-tempest-review/20" box fan + 20" furnace filter. Both are pretty standard sizes. Add duct tape as required.
Here’s a video on how to do this: https://youtu.be/EUHVo54tXz0
I did this this year for wildfire smoke, and it works great. Having said that, it is not quiet and the way I was using it was to run it at full blast for an hour, then leave it off for most the day.
If you wanted an always-on solution, I think I’d actually suggest a commercial air purifier.
I like our Honeywell Insight. Looks OK, is quiet enough and most importantly: Has readily available generic HEPA filters. I use it for fire season, it makes a noticeable difference to me re: wildfire smoke in my house.
I’ve got two Coway Airmega AP-1512HH air purifiers and they’ve help a lot during the bushfires in California. They’re on sale right now for $140 each during the Prime Day sales.
Sharp
