How to choose a supply ventilation

How to choose a supply ventilation? This question is not so just unambiguously answer… The creation of a ventilation system is a complex process, the implementation of which is best entrusted to specialists. First of all, it is important to complete the design stage at which the entire system is planned, and the type of equipment that will be included in it is selected. It is often today that the supply systems of ventilation are installed today. Design to allow you to understand which supply ventilation needs to be bought from the calculation of the characteristics of a certain room, where the equipment will be installed.