Hoods with air extraction

Air extraction only

— hoods that work only for air extraction and do not support recirculation.

In this mode, the hood draws in the air in the room and removes it to the ventilation shaft or directly to the street. This is a very effective way to clean the air from pollution: all impurities, including odours, are removed to the outside. However note that when the hood is operated to the outlet, you must either open windows or provide adequate ventilation. And in the cold season, such a hood will “blow out” heat into the street; The situation can be corrected by installing recuperators in the ventilation system, but this is quite difficult and expensive.