For use in clean rooms, these adjustable-height stools relieve foot and leg strain when working in a standing position by allowing you to rest most of your weight on the seat as you work. Lower clean room ratings indicate fewer contaminants, with Class 1 clean rooms being the cleanest environments.

Use the lever under the seat to adjust the height; the air cylinder controls the movement for a quick, smooth adjustment. These stools can be adjusted to heights that are comfortable for working at workstations and high counters. All swivel so that you can work on multiple surfaces. They also tilt to promote good circulation in your legs.

These adjustable-height stools release minimal contaminants to meet clean room requirements. Lower clean room ratings indicate fewer contaminants, with Class 1 clean rooms being the cleanest environments. Without a backrest, these stools fit under tables and workbenches when they’re not needed. Adjust the height using the lever; the air cylinder controls the movement for a quick, smooth adjustment. The seat swivels so that you can work on multiple surfaces without having to stand up.

Choose a seat height range with heights slightly lower and higher than your ideal setting. Stools up to 23" high fit most comfortably when used with standard 30" high work surfaces, such as tables and desks. Stools that are 24"-27" high are sized for use at standing-height work surfaces that are 36" high, such as workbenches. Stools 28" and higher are meant to be used at extra-high counters that are approximately 40" high.