Hello and courtesy
Almost 90% of the devices that are similar in appearance are copied.
The reason is that very few devices are made with science and expertise.
I will give an example to make it easier to understand: the same air that is called circulator or circulation (or similar words) must be spread or injected into the device in such a uniform and regular way that the whole device contains a single temperature, so the calculation of air pressure The inside of the device is very complicated and difficult, because the closest air entry space (holes where hot air is injected into the device) through the fans (vents) have one pressure and the farthest air entry space from the fan has another pressure. So it should be calculated first, what fans should be used? It means the type of fan, impeller and the pressure it can withstand, then the holes through which hot air is supposed to enter the device, the number of holes and their size should be calculated and implemented in relation to those fans.
That is, the creator is a creator or just a copycat because of his innate intelligence or personal technicality.
Now, how can we know which device is good and which device is bad?
This discussion is because the interests of individuals depend on it, they all have definitions and praises of their devices, which challenges their customers, unless the buyer is a technical person, who understands the weaknesses and strengths of the device, which usually They do not have the knowledge and technology about the device.
This post is written by Rezaei_ali