The many windows and The 2 skylights have sound and mesh panels that zip open for ventilation and sights.My collapsible stove weighs 30 lbs. and folds up right into a 14x22x5 bag, including the collapsible stove pipe. It’s great for smaller wall tents when it’s not incredibly cold. It’s about as airtight being a collapsible stove can get.Howe