I have purchased a MORI HR 150, which is an extractor vent. It has an "alternate flow" and "extract only" setting. I want to set it on extract only, which means it will take the air from inside and move it outside at a pace of 7 litres/second.
However, the bedroom has no other vent hole, so I am a little concerned that the air pressure will decrease as the vent just removed the air from the bedroom, with no entry point for new air, except for the space below the door.
Should I be concerned by that, from a health point of view?