I have two nebulizer a hooked to mine for additional air and a humidifier cold. And a vaporizer hot going with mine. A fan on the side you can up grade the heat inside depending on what you get . Circulated air incubator with forced air fan kit with turners. Little giant pro series. There or better ones. My first hatch I didn't know. I had a six baby's in emergency situation we got little giant. Learned tricks along way.