The Biofit Amherst AM-Series Static Control Chair is designed to enhance user performance with its larger, saddle-shaped seat and backrest, along with various customizable options to meet specific environmental and budgetary requirements. BioFit ensures every chair maintains electrical continuity; all components are grounded to the base, and each chair includes a drag chain and conductive glides or casters to prevent static buildup caused by insulative dirt.

Innovatively, a spring-loaded contact ball bearing within the pneumatic seat-height adjustment mechanism ensures a continuous path to ground, even through the inner cylinder of the mechanism, from the top of the backrest and seat down to the base. This chair features a high-profile Euro-look base with T-shape construction for added strength and ease of cleaning.

Specifications:
♦ Backrest: Measures 18” wide x 19” high, includes lumbar support and a protective plastic panel.
♦ Seat: Saddle-shaped and contoured, measuring 21” wide x 19” deep x 3” thick, with a waterfall front and internal seatboard bumper guard to enhance comfort.
♦ Controls: Equipped with Task Control Soft Touch for pneumatic seat-height adjustment, a fixed rearward seat tilt of 3-1/2°, and adjustable backrest tilt and height.
♦ Casters or Glides: Comes standard with dual-wheel, non-marring polyurethane casters that prevent unwanted movement when unoccupied. Optional 2” high polyamide glides or other caster styles are also available.
♦ Metal Parts: Chrome-plated for durability and aesthetic appeal.
♦ Capacity: Supports up to 350 pounds.

This chair is an excellent choice for static-sensitive environments, offering both functional ergonomics and rigorous static control to ensure workplace safety and comfort.

Select your base

S-Base 23” diameter tubular steel base 21” diameter affixed footring	A-Base 25.6” diameter cast  aluminum base	W-Base 28.7” diameter  wide aluminum base

Here's how to calculate your seat height to perform at your best.
BioFit manufactures models in a wide selection of seat-height adjustment ranges. This choice of adjustability options helps ensure our chairs and stools fit the size and body type of individual workers and unique applications, delivering in-demand flexibility to accommodate users on different shifts or the same worker performing other tasks at different work levels.

The basic formula to calculate the ideal seat height directly corresponds to the actual work level ‒ that is, the distance from the floor to the work surface height ‒ minus 12 inches. Therefore, BioFit recommends using this figure as the mid-point of the seat-height-adjustment range of the chair purchased.

For example, a 40-inch work level ‒ the height measured from the floor to the top of the work surface ‒ minus 12 inches = 28 inches ‒ is the mid-point of the chair or stool seat height adjustment range.

This formula applies to most workers. BioFit ergonomic seating will fit 90% of workers without customization, while alterations can be made easily for the other 10%.