which ecofan has the best air flow rate
1187198
I have both the 3 blade and 2-blade fans. The 3 appears to move more air, but not so much that I notice the difference in room comfort.
1187199
I only have this model so a cant speak of the others, but this one works pretty good. If they sold one twice as big I would buy it.
1187200
In my opinion this one does. I bought another used one off of Ebay which had 3 blades and this one blows it away.....
1782701
We own 3 of these, 2 small and 1 large diameter. I am an engineer and have found these to be high quality and an outstanding design: the move an amazing amount of air relative to their RPM, and therefore very quiet. On a low setting, they move more air at a much quieter motor RPM, and no hum has ever been noticed by us. I don't think their is a better fan out there
1480352
Don't know the CFM, but these things have been running 24/7 at my local gym for at least the last four years. They are very robust -- industrial. Nothing like cheaper consumer fans.
1352570
damn, i'd like to know this too. specifically, which one runs quieter and cooler? and furthermore, which one is more reliable?
197673
Both up and down and side to side with four speeds and a remote that is palm size small with Buttons that feel like the Apple iPhone. They are are remarkably powerful to gentle inAir flow, quiet, good looking and dollar to dollar the best fans (two) I have ever owned. Will buy nothing accept Ozeri fans and other Ozeri products if they make what I am looking for. I am a verified buyer.
1248025
This is a great fan: It's one of the few that have a rheostat to control fan speed. It is basically a CPU fan from a computer and I had the same initial concern about its ability to move air, however the area where I work has no air movement and this does a great job in keeping me cool. Several of my co-workers have purchased the same item and are equally impressed.
312451
Eco Breeze is definitely in the quiet category of window fans. It is easy to have a conversation while Eco Breeze is running.
2279096
Maybe consider a .5 sone bath fan Air King BFQ50 ENERGY STAR® Qualified SNAP-IN Exhaust Fan, 50 CFM
1747455
I have the dual fans (4000 cfm) ... using to cool a 355 SBC they are quality units, work fine, however, they draw a lot of juice and are noise. I had to go to a 140 amp. alternator to carry the load. I'm going to put seperate switches so I can run 1 fan on cool days and 2 only when needed to drop the load and noise. engine mounted in a '74 260Z roadster conversion with tight engine bay so cooling, even with an alum. rad. and ceramic coated headers a task. Fans did the trick.
177977
Yes better air flow than the Dorman. I don't know anything about the Evan-Fischer.
1434063
Here's a chart of all the different circulation speeds: http://www.rabbitair.com/pages/choose-your-air-purifier
1324573
I feel the noctua are slightly louder but cool marginally better. Noctua make the new industrial fans that look good but are expensive.
1238302
The quiet edition fans are still a bit too loud for my tastes. It really is about silence or more air ventilation. Which the AF does better IMO.
90250
You are pretty accurate, I love these fans because they move LOTS of air and I have been running it 24/7 for four months now with no problems. The negatives, they are loud and as you said there is not a significant difference between speeds; there IS a difference, but not from a quiet whisper to full throttle.
91284
I compared specs of this against the newer FFRS1222Q1 and the only difference seems to be the CFM (cubic feet per minute) airflow rate at highest speed, being 500 on this one and 339 on the new one. Additionally this one claims to cool 640 sq ft, while newer one is just 550 sq ft, probably a result of a lower fan speed. Not sure why they would make a new model just to lower fan speed. Maybe it's quieter, but there's nothing in the specs for that.
427690
I am very happy with mine for those purposes. The nice part is that you don't have to have the fan blowing right on you. It can be facing any direction and you feel a comfy flow of air without being annoyed by a blast. I got 2 on sale and love them. For that size room, you will be fine with the small one.
745225
The G2 is second generation with EVGA's new ECO thermal control that adjusts the fan speed up or down depending on need plus some internal improvements like a superior vertical double layer main transformer that increases power output and supposedly better capacitors. If you have to have the latest, greatest or you are doing something that needs it go with the G2. If you are just looking to up your system for normal use like an added video card or two like I have, the G1 is well worth the price.