Air flow must be able to be easily controlled as required

What should you bear in mind when choosing a ventilation system? What level of air circulation is required, what constitutes good air quality, and how do you recover heat? We have the answers.

A good indoor environment can be achieved by a range of means from choosing the right air filter to designing entire ventilation systems. It is also important to be able to control the ventilation easily. Sometimes the air also needs to be filtered to separate out harmful substances and protect people, properties and the environment.