But that’s secondary when it comes to gas stoves. The primary purpose of a proper venting hood is to vent carbon monoxide so that it doesn’t build up to dangero

But that’s secondary when it comes to gas stoves. The primary purpose of a proper venting hood is to vent carbon monoxide so that it doesn’t build up to dangerous levels in the home. Carbon dioxide, particulate matter, and other combustion byproducts are also very important to vent to maintain indoor air quality and promote good health, but CO can outright kill everyone in the house with acute exposure.