Scythe is never enough!
Kaze Maru
The name says nothing about what product we are dealing with, however fortunately the packaging is transparent so we know we have a new family of fans.
It is represented by three members of the Kaze Maru family, the main novelties of which are the form that accompanies the content and the fact that they are 14-centimeter pieces. Unfortunately, it is not possible to block the Danube with 14-centimeter aerators, so it doesn't hurt to have more of them on the market.
A common feature of the fans is the size and the fact that the outer frame is not the usual square but circular. We don’t know the benefit of this, but we suspect it will be easier to install them in some houses. Another common feature is the bearing, which is sliding rather than ball-bearing. The blades are the same, and so are the engines, which in turn differ in the maximum speed and, of course, the specifications that characterize the valves.
The slowest piece rotates at 500 per minute, moving 29,39 cubic feet of air, while producing 10,8 dBA of noise, according to the factory. The medium speed is 1200 rpm. The higher turnaround has a beneficial effect on air transport, which has risen to 61,3 cubic feet, and of course has a detrimental effect on noise, which is 26,58 dBA. The strongest piece is already spinning at 1900 per minute, producing 41,13 dBA of noise, which is quite combos, but at the same time the air transport has risen to 104,54 cubic feet, which is not a sponge cake to speak of plague.
Now comes the criticism! The fans run basically quietly, except for wind noise. Interestingly, despite the plain bearing, we hear a ball-like chirp from the engine. Well, let no one really like that, this chirp is well below the audible limit of 20 inches, mainly because the sound of the air suppresses it.
Along with the chirping, we also feel some vibration, which we feel is not due to poor balancing of the blades, but rather to the weakness of the bearing. Of course, here too, we have to describe (and not just because of the bathing of the nutmeg) that the degree of vibration is not disturbing, it does not vibrate so much in any way that it spreads to the house.
What I clearly do not like, however, is the data provided for air transport. Unfortunately, we don't have a meter for this data yet, but based on the other fans we have, we think the data shown is a bit exaggerated or, less likely, others have written a lower value than it actually is. We hope to have a comprehensive fan test early next year, and then the turbulence will be revealed!
