Intake fan and exhaust fan or an open door and window are all creating ventilation. In other words putting fresh air into a room and removing bad air is ventilating a room.
Hope this helps.
Respiration
Manual for ventilation air washer
They either use windows or ventalation to get the smoke out.
It won't do much damage unless you have absolutly no ventalation. It is definetly better to have vents for gasses to escape fromt the water.If there is no ventalation than your fish could be more prone to disease and stress.
To allow the engine to breathe, and help to vent fumes as well.
Positive Crankcase Ventalation and Exhaust Gas Recirculation
most likely has a closed crank case ventalation ccv
simple leaf with parallel venation -ash (:
styraoam and plywood but the best when i did it 11 grade was plastic with magnetic doors and air ventalation with a garage and electricity on both floors.
It's behind a ventalation pipe near the main base on the side of the map with the wall, as apose to the side with all ocean
with the correct coverter kit and you meet the proper requirements for ventalation i belive you can but will depend on the model you to weather or not they have designed a converter kit
the risk factors of asthma when playing sport are mainly that you could pass out or have a severe asthma attack. my advice is to have your ventalation or puffa with you at all times when you are playing sport.