Exhaust fans comparison. anyone would work?

Currently on the market there is a huge number of fans, with basic components such as the motor, belt, pulleys and blades.
And even though they all do the same, they don't do it the same way.
Some with higher flow, others with better efficiency.
Here I show you a comparison of 2 fans of the same brand with a different component with different results, the same method applies to fans of any brand.
From there you will be more informed since the fan is the main element of the controlled environment house and can even work up to 24 hours a day, in areas that are too hot.
You probably do not have access to brands with better fans, but if you only have local brands, we can help you by reviewing them to see if they are the best option for you, remember that they are the main element of ventilation so a poor selection will affect every day , until you change the equipment.
If you have more questions, do not hesitate to contact us on our page and social networks, to advise you or help you with this issue, or even put it in the comments.
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Buenas noches podría explicarme el momento preciso para la transicion de ventilación túnel a ventilación panel