Ozone is heavier than oxygen. The higher you place your machine, the greater the efficiency you may achieve. Our new heavy-duty elevation stand is designed to hold your MaxBlaster in the optimal position. Extremely beneficial for professional auto detailers. Or for professional ozone treatment providers in homes, properties, and commercial cleaning applications. Not only is this stand versatile and efficient, it makes you look like you know what you're doing lol. Raised metal lip surrounds the stand for secure placement of up to three MaxBlaster ozone generators. Heavy-duty steel construction. Adjustable height from 36"-60" tall. Folds easily for transport and storage. Tray dimensions 19" x 14". Note: due to the special packaging (and shipping costs) we reserve the right to have this stand drop-shipped to you directly from our supplier. It may arrive in a separate package on/around the same day that you receive your MaxBlaster.