Side by side
Corsi-Rosenthal box vs Levoit Core 600
Corsi-Rosenthal box
82 positive (82%) · 14 mixed (14%) · 4 negative (4%)
Trust + time weighted: +79%
AI summary — not a quote
The Corsi-Rosenthal box is a highly effective, DIY air purifier made from a box fan and MERV 13 or 14 furnace filters. It is widely praised on Reddit for providing a Clean Air Delivery Rate (CADR) that rivals or exceeds expensive commercial units at a fraction of the cost. While it is a favorite for budget-conscious users and those dealing with smoke or heavy dust, it is frequently criticized for its industrial appearance and high noise levels when using standard box fans.
Pros
- High Clean Air Delivery Rate (CADR) for large particulates and smoke
- Significantly more affordable than high-end commercial HEPA purifiers
- Highly effective for visible dust capture
- Customizable designs, including quieter versions using PC fans
Cons
- Large, bulky footprint that takes up significant floor space
- Standard box fan versions are often too loud for quiet environments
- Homemade aesthetic may not suit living areas or shared spaces
Top excerpts
I learned of a Corsi Rosenthal box (using MERV 14 filters) and decided to build one, but in my haste, I flipped the fan to be blowing air into the center of the box instead of upwards and let it run all night. My best guess is that the incorrectly built Corsi Rosenthal box ended up agitating the particles in our room and we inhaled some while sleeping.
Another good choice is building a CR box. The high setting will definitely be too loud, but this site found a decibel reading of 49 on the low setting
Levoit Vital 200s or Corsi Rosenthal Box
you get an Air purifier called a CR Box/Corsi Rosenthal Box...that does a whopping 440 CFM of air cleaning power. Better than any sub 400 dollar purifier, and better than some 1,000 dollar purifiers...for 90 bucks.
a CR Box/Corsi Rosenthal Box a great way to get cheap particulate coverage. (A CR Box only 90 bucks..and 440CFM power...so will be like 4x more powerful than that Coway...for same price.
Levoit Core 600
28 positive (93%) · 2 mixed (7%) · 0 negative (0%)
Trust + time weighted: +93%
Top excerpts
And a Levoit Core 600 good size for living room.
Even a Levoit Core 600 will perform as well or better than the Everest Air, for 100 dollars less. (Core 600 is 390CFM vs Everest Air is 350ish, Everest Air has more expensive air quality sensor and little larger filter with maybe a little more carbon. Core 600 still have carbon, and air quality reader, and is more powerful.)
So something like A Levoit Core 600 would be good in larger/main area. ... Core 600 3,000 sq feet coverage meaning it will clean the air 1 time in 3,000 feet.
Look for one with a high CADR, the Levoit Core 600 for example; it's fine for that budget. But don't expect it to eliminate odors, much less smoke smells.
They are ok but do note they are quite a lot louder to get their max cfm which is lower than the air Fanta 3 pro.