It’s as close as I can get to a flow hood for less than $450. The 2nd picture is said $450 laminar flow hood! But the poor boy’s flow hood is way bigger like 24 x 24 inches. That other flow hood is 12 x 12. In Mycology there is nothing more important that clean air to work inside. Period if you don’t have some kind flow hood you are just begging for Contambrah!