Biofit Desk Height, Large Seat, Steel Base, ISO 4
Description
This Amherst Series model rated for ISO 4 cleanroom use combines a larger saddle-shaped seat and backrest with ergonomic functionality for enhanced user comfort. Designed for desktops and benches 30” to 34” high, this technical chair also features a steel base with affixed footring.
Amherst Series seating outfitted with critical use performance packages are engineered for use in technical workspaces in a variety of industries.
This chair features an ISO 4 cleanroom performance package and is designed for use at 30" to 34" desktop height. Features include a generously proportioned, saddle-shaped contoured seat with waterfall front and internal seat board bumperguard, a roomy backrest with lumbar support and plastic protective panel, and a task control with pneumatic seat-height adjustments from 18" to 22", and convenient backrest tilt and height adjustments. The seat and back are covered with Grade 2 black vinyl upholstery. The chair rests on a durable 23” diameter tubular steel base with affixed 21” footring and dual-wheel, non-marring polyurethane casters that resist movement when the chair is unoccupied. Metal parts have chrome finish. Components packaged under laminar flow cleanroom hood.
Complies with product safety and performance standards guidelines as established by the American National Standards Institute (ANSI) and Business and Institutional Furniture Manufacturers’ Association (BIFMA). Meets CAL 117 fire retardant standards. LEED® compliant.
Backed by a 13-year warranty with lifetime warranty on pneumatics.
Technical Specifications
Amherst Series seating outfitted with critical use performance packages are engineered for use in technical workspaces in a variety of industries.
This chair features an ISO 4 cleanroom performance package and is designed for use at 30" to 34" desktop height. Features include a generously proportioned, saddle-shaped contoured seat with waterfall front and internal seat board bumperguard, a roomy backrest with lumbar support and plastic protective panel, and a task control with pneumatic seat-height adjustments from 18" to 22", and convenient backrest tilt and height adjustments. The seat and back are covered with Grade 2 black vinyl upholstery. The chair rests on a durable 23” diameter tubular steel base with affixed 21” footring and dual-wheel, non-marring polyurethane casters that resist movement when the chair is unoccupied. Metal parts have chrome finish. Components packaged under laminar flow cleanroom hood.
Complies with product safety and performance standards guidelines as established by the American National Standards Institute (ANSI) and Business and Institutional Furniture Manufacturers’ Association (BIFMA). Meets CAL 117 fire retardant standards. LEED® compliant.
Backed by a 13-year warranty with lifetime warranty on pneumatics.
Technical Specifications
| Height Compatibility | Desk Height |
| Seat Covering Type | Upholstered |
| Seating Surface | Vinyl |
| Seat Size | Large |
| Back Size | Large |
| Base | Steel / Tubular Steel |
| ISO Clean Room Standard | ISO 4 |
| Finish Color | Chrome |
| Shipping Availability | Standard |
| Shipping Weight | 41 |
| Product Dimensions | 23 x 23 x 37 |
| Weight Capacity (lbs) | 300 |
| Seat-Height Adjustable Range | 18-22 |
| Upholstery Type & Color | Grade 2 Blue Vinyl P28542 |
| Seat Description | Generously proportioned saddle-shaped seat is contoured and features a waterfall front for added comfort; measures 21" wide x 19" deep x 3" thick. |
| Back Description | Large ergonomic backrest is 18" wide x 19" high to deliver added comfort and support for the upper lower back. |
| Control Description | Control allows function of the seat height activation and backrest adjustments by means of easily engaged levers which can be activated from the seated position. Seat tilt is fixed at 3.5° rearward while the backrest adjusts 8° forward and 13° rearward. |
| Base Description | Small, five-legged base with caster-to-caster diameter of 23.0" and maximum width of 22.8". Welded 1" x 14-gauge steel tubular legs withstand test loads of 2X BIFMA strength requirements. Features standard 50mm, steel-reinforced, tapered hub, and a 21" affixed steel tubular footring welded to top of legs at 8" above floor height. A reinforced nylon insert at the end of each leg accepts a caster or glide stem. The welds at the hub are concealed by a two-piece, polypropylene cover. |
| Caster Glide Description | Two inches in height, with dual soft-wheels. Casters resist movement when the seat is unoccupied. Plastic collar around caster stem to match base. Standard casters have grey tread. |
| Recommended User Height | 30-34 |
| Seat Width (in) | 21 |
| Seat Depth (in) | 19 |
| Seat Cushion Thickness (in) | 3 |
| Back Width (in) | 18 |
| Back Height (in) | 19 |
| Fire Retardancy Standards | CAL117 |
| Footring Diameter (in) | 21 |