Apartments (not townhouses) have a Venco ventilation and heat exchange system.
This is critical for the ventilation of your apartment. Without it, your apartment will turn into a sauna.
If it gets too noisy, you can turn down Fan 1 to reduce the amount of fresh air being brought into your apartment, but you should always leave Fan 2 on full blast. Fan 2 is very quiet and is responsible for removing moisture and smells from your kitchen and bathroom.