Recently, a customer asked me such a question. My workshop only installs an exhaust fan. Can I achieve a cooling effect without installing an evaporative air cooler? Because we don’t want to spend too much money on improving the workshop environment. The result is negative, why do you say that?

First of all, we must understand the purpose and principle of the exhaust fan and evaporative air cooler. Only then can we know its effect and know its suitable installation conditions? What effect can be achieved.

The working principle of the exhaust fan is to pump the air in the workshop to the outside. It adopts the method of negative pressure ventilation. Its advantage is that it can quickly increase the air flow and continuously exhaust the sultry air in the workshop to the outdoors. Increasing the flow of air is a very good thing for the workshop, and it can also ensure a freshness of the indoor air. But he can’t cool down, so why do you say that? Because it is just a ventilation device, in summer, our outdoor air is relatively hot. When you change the room to the outside and the outdoor to the room, you can change it back and forth. It is still very hot, and it does not have the effect of cooling down.

The evaporative air cooler adopts a positive pressure ventilation cooling method, which cools the outdoor air, filters it and sends it into the room, and discharges the original indoor air to the outside. It is better than the exhaust fan that the cold air sent in before the indoor air is discharged outside is the cold air that has been cooled and filtered, instead of directly sending the outdoor air into the room.

When choosing cooling products in our workshop, we must consider clearly what our purpose is. If we just want to improve the air quality problem in the workshop, just increase the flow of air and make the air in our workshop fresher, We can choose a exhaust fan. If you want to achieve the effect of cooling, let our employees work in the factory workshop more comfortable, I suggest that you choose evaporative air cooler is more suitable. Although the exhaust fan is cheap, it cannot replace the evaporative air cooler to achieve the effect of cooling down.