We want fresh air always and in every room of our homes and office.
However, it is possible to breathe fresh air inside as if you were outside and fully enjoy your home and office.
Most essential to providing fresh air to your home/office is properly managing incoming and outgoing air for your climate conditions, seasons, temperature and humidity levels.
Ventilation is thus a necessity.
These fresh air systems exchange stale indoor air and pollutants for fresh, filtered air from outside.