Integra ISO 7 Cleanroom Chair effectively meets the needs of various work environments, especially cleanrooms and healthcare settings. Antibacterial, anti-fungal vinyl upholstery meets ASTM G21 and AATCC TM147 standards for cleanliness and safety as well as CAL 117, FMVSS 302 and NFPA 260 standards. ISO 7-compliant cleanroom chair meets the particulate goals of ISO14644-1 and uses a unique filtration system to trap particles for contamination-free comfort. Pneumatic, non-tilt adjustment design allows you to alter both seat height and back depth. Height settings from 15.5" to 21" ensure people of most heights can work comfortably. Contours and waterfall seat improve lower-body circulation and encourage proper spine alignment. Threaded adjustment knob moves 20" chrome footring in height along the office chair's base cylinder. Sturdy, five-legged aluminum base moves on mushroom glides and supports up to 300 lb. to ensure stability at any height.