Ventilation is an important factor to consider for all areas. No matter the commercial activity in that area, ventilation shall ensure the building is able to be occupied. When a building has people in it, and activities happening, there shall be lots of waste in the air. This explains the need for a functional exhaust system in there. This calls for you to make sure you have the right one installed in your specific building.
A good place to begin is with finding out what airflow rate works best for your rooms. It is by understanding the amount of air needed to flow through a room that you shall know what power rating of a fan to go for. Airflow rate is stated as cubic feet per minute (CFM). There are specific CFM ratings on each fan.
You will then have to find out what the occupancy and area details are. There are guidelines you shall get from the local authorities on how to go about this. You can check that out here.
You will also have to decide on the air change. There are rooms which do not have a specific number of occupants at all times. This translates to more air being needed when that number fluctuates at a higher rate. As more people use the room, there shall be a need for more fresh air, as there is more waste in the air in there. This means you need fast acting fans. The less the frequency in a change of occupants, the less you will need that air change.
You need to also consider the efficiency of the suggested exhaust system when it comes to heat removal. This system has to also leave behind cooler environment, apart from the clean air. If there are more people in there, you will need it to manage to cool things down well. The same goes for an increased rate of the production processes.
You then need to factor in the static pressure. Part of the effort these fans shall put in will go towards dealing with the static pressure in the room. This is why you need to make sure you go for fans that can handle the static pressure and still work to the specifications provided. Static pressure will also come from the design of the system. A system designed with plenty of intricate and complex ductwork shall need to overcome more pressure from it. There is also friction in the filters to think of.
You will find there are even more things for you to factor in when getting such a system for your premises. You will find out more about them on this site.