To prevent any build-up of humidity or stuffiness, these openings suck in air whilst also letting hot air rise and escape. We think this is the biggest standout in relation to how different this model is to others on the market. Most versions at this price will stick to the really simple designs, with a… Continue reading Ozark Trail 12′ x 12′ Straight Leg Instant Canopy, Dark Gray Gazebo Shelter 144 sq ft Coverage