CleanAirKits - Triple Exhalaron
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Reddit Reviews:
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Last updated: Jan 3, 2026 Scoring
Liked most:
10
1
"Efficiency - because the filters are more efficient, it requires less energy to pull air through them. ... PC fans use DC motors, which use 1/10 of the energy and are much quieter than AC motors. ... They're also are engineered to be virtually silent. ... To get the same amount of air cleaning power one unit achieved with my winix 5200-2 I'd have to run it at turbo mode and it's just way too loud. Plus the corsi rose thal box built with pc fans pulled 8 watts vs the winix pulling about 60 at turbo. My electricity rates in CA are super expensive and it saves hundreds of dollars a year in energy and filter costs to go with a Corsi Rosenthal box."
"it’s barely audible on high"
"another plus for Alen is that they are insanely quiet. ... I have a 45i and 75i and they are excellent."
183
16
"Last year there were wildfires nearby and the airmega kicked itself into high gear (I keep it on auto), so I do really trust that it’s actually doing something."
"We’ve also had terrible Smokey days from the Canadian wildfires in my area and when I last replaced my filter, it was almost black so it was working hard!"
"My family has been breathing easier, especially during allergy season"
9
0
"PC fans and Box fans are made by dozens of different brands and can be purchased anywhere - Walmart, Amazon, Home Depot etc. ... HVAC filters are cheap, efficient, and abundant. ... These purifiers do not lock you into one brand and all parts are user replaceable. ... Since the whole system is made from replaceable parts, you won't ever have to throw it all away just because a model got discontinued or a brand went out of business."
"these filters are easy to get preordered to my local home improvement store."
"the filters will be cheaper because they're standard filters you can buy at any hardware store instead of proprietary filters you can only buy from one company ... by design CR boxes are super easy to maintain"
7
0
"The box fan was $20 and the filters are $40 every couple of months. ... They're inexpensive"
"the filters only need to be changed every 6 months or so ... we can get them for cheap when they go on sale"
"they're cheaper and more efficient than commercial air filters"
3
0
"It's really effective for larger sq footage rooms"
"Surprisingly, data shows that Corsi-Rosenthal boxes are just about as good and that's because they can achieve higher CADRs, and a greater number of Air Changes Per Hour. ... The filters do not clog as quickly and can filter large volumes of air quietly which means you will leave them running all day."
"Actually more effective than most commercial air purifiers because it moves much more air."
Disliked most:
1
2
"you need to be able to build and rebuild them"
"also cool with rebuilding it at least twice a year"
3
1
"tolerate a decent amount of noise though"
My air purifier is a [diy one](https://en.wikipedia.org/wiki/Corsi%E2%80%93Rosenthal_Box) out of a box fan and merv 13 filters. So I'm just adding a smart plug to it. You could just get a dumb one with a smart plug? might be cheaper
r/homeassistant • Best Home Assistant Smart Air Purifiers? ->My wife built two of these for our house. She despises dust. They work pretty well.
r/garageporn • Air Filtration For the Shop Corsi-Rosenthal box 10/10 ->One is in the front door foyer to blow up the stairs. The other is in the living room. We have a dog that sheds a lot and that's where he spends much of his day.
r/garageporn • Air Filtration For the Shop Corsi-Rosenthal box 10/10 ->Look up corsi-rosenthal boxes. I just built one last week and I'm way happier with it than my levoit.
r/AirPurifiers • I’m lost ->Corsi-Rosenthal boxes are what they're called! I have a lot of allergies and I use one of those. They're great.
r/CleaningTips • How are we freshening the air in our homes? ->Corsi-Rosenthal box. Many people love them on this sub, if done right. They’re great! Although I believe you’ll want a MERV-13 at a minimum. :)
r/AirPurifiers • Just basic a** air purifier ->They work. Most are over priced though and the filters cost an arm and a leg and are where the profit is at. Most people could get away with a Corsi-Rosenthal Box, connected to a smart plug and turn it on when they cook for a drastic improvement in indoor air quality for cheap.
r/smarthome • To people who use Air Purifiers, do they work or is it a scam? ->This is true. Web-search for a "Corsi-Rosenthal box." Actually more effective than most commercial air purifiers because it moves much more air. It's simply several MIRV-13 furnace filters taped to a cheap fan.
r/AirPurifiers • Just tell me what air purifier to buy! ->Corsi-Rosenthal box. You can make one yourself, or buy the kits. The ones with computer fans are wood or metal and will last forever, and because it uses MERV-13 furnace fans you only have to replace them every few years.
r/BuyItForLife • The Best Air Purifier for Home now? Have you noticed a huge difference since you started using them? ->Yeah absolutely. I don’t mind a little noise, but on some of these air purifiers to get the CADR that makes sense, you need to blast them. I recently bought a PC fan air purifier from clean air kits. They t won’t win any beauty contests but it moves a tremendous amount of air with very little noise.
r/AirPurifiers • Air purifiers for stylish interior design aesthetics? ->A [CR box](https://corsirosenthalfoundation.org/instructions/) (Filtrate 1900 or MERV 13 furnace filters and a box fan) is your best option: they're cheaper and more efficient than commercial air filters; because the filters are just furnace filters, you can get them basically anywhere; and they can be designed in lots of ways to suit your space (the standard 4-filter design, two filters in a triangle shape with the fan as the third side, one filter with a spacer between the fan and filter, two or four filters with computer fans for quieter filtration, mounted to a wall like a floating shelf, etc). Look online for pictures and further instructions for different shapes.
r/saskatoon • Air purifier ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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