The Office Master Ergonomic OM5 Chair is a progressive ergonomically designed office chair created to fit a wide range of users without the hassle of adjusting levers or knobs. The OM5 features Body-Activated Motion (BAM) which means this gorgeous chair intuitively responds to your body and movement, making it an excellent choice for multi-user situations. The OM5 chair is impressively simple featuring modern curves paired with clean lines without compromising ergonomic comfort and function. Customize your OM5 to fit the look of your decor.
The Office Master OM5-B chair's flexible, PolyFlex back provides the exact level of support, in all the right places, for optimal back support and comfort. A lack of levers and locks allows the chair to move with you, promoting better circulation and reducing fatigue. A Flexible waterfall edge on the seat front supports your thighs without pressure or pinching.
Overall height: 37-42"
Back dimensions: 18"w x 21"h
Seat dimensions: 19.75"w x 17-18.5"d
Seat height: 16-21"
Weight capacity maximum: 300 lbs
Warranty: Limited Lifetime
Office Master OM5-B Arm Options:
The OM5 is available without arms, with MR5 height adjustable arms, or MR45 multi-function arms that offer height, fore-aft, side-to-side and pivoting motion.
The PolyFlex back looks great without fabric or can be upholstered for a completely different look and feel.
Choose from black, palladium grey or arctic white PolyFlex.
Prefer an upholstered back? Choose from a Zodiac Mesh back or upholster the back to match or contrast with your seat.
Chair base options
Choose from the standard, black, nylon base or upgrade to a beautiful polished aluminum base.
Floor caster options
Choose from stationary floor glides, 65mm soft casters for hard floors, 50mm reverse braking caster which restricts chair movement when in use, 50mm safety soft casters which brakes when chair is not in use, or rubber casters, perfect for concrete and other hard surfaces.
Officemaster OM5-B Fabric Options:
Officemaster has a huge selection of fabrics to choose from to make your ergonomic work stool uniquely yours. Choose from a variety of fabric types and grade options. These fabric choices are endless! There are more options then what is listed. Please contact Ergoprise if you would like to order a fabric not listed. Bring your own fabric is also available adding to the flexibility of design of your OfficeMaster chair.
Grade 1 Fabric Options:
Grade 1 - Basic 1001-1020
Content: 100% Marquesa Lana Backing: Acrylic Width: 54" Finish: Teflon Abrasion: 250,000 Double Rubs
Lightfastness: 40 Hrs. - Class 4 Flammability: Passes California 117-E; CS-191-53
|Grade 1 Basic - Charcoal ||Grade 1 Basic - Gray ||Grade 1 Basic - Navy |
|Grade 1 Basic - Navy ||Grade 1 Basic - Burgundy ||Grade 1 Basic - Black |
Grade 1 - Spice 1161-1168
Content: 100% Polyester Backing: Acrylic w/ Teflon Abrasion: 400,000 Double Rubs
Lightfastness: 60 Hrs. - Class 5 Flammability: Passes California 117-E; CS-191-53; BIFMA X5.7-1991; NFPA 260, CLASS 1; UFAC, CLASS 1
|Grade 1 Spice - Pepper ||Grade 1 Spice - Nutmeg ||Grade 1 Spice - Juniper |
|Grade 1 Spice - Sesame ||Grade 1 Spice - Paprika ||Grade 1 Spice - Mint 
Grade 2 Fabric Options:
Grade 2 - Chess 2291 - 2299
Content: 80% Recycled Polyester, 20% Olefin Backing: Acrylic Finish: Teflon Abrasion: 114,000 Double Rubs
Rating: Heavy Duty Lightfastness: 40 Hrs., Class 5 Flammability: Passes: California 117-E; UFAC Class 1
|Grade 2 Chess - King ||Grade 2 Chess - Knight ||Grade 2 Chess - Castle ||Grade 2 Chess - Bishop |
|Grade 2 Chess -Checkmate ||Grade 2 Chess -Queen ||Grade 2 Chess -Pawn ||Grade 2 Chess -Rook |
Grade 2 - Knack 2542 - 2548
Content: 100% Polyester Backing: Acrylic Finish: Soil and Stain Resistant
Abrasion: 100,000 Double Rubs Rating: Heavy Duty Lightfastness: 40 Hrs., Class 5
Flammability: Passes California 117-E; UFAC Class 1; NFPA 260 Class 1
|Grade 2 Knack - Filament ||Grade 2 Knack - Reed ||Grade 2 Knack - Brisk ||Grade 2 Knack - Fresco |
|Grade 2 Knack - Teak ||Grade 2 Knack - Zest ||Grade 2 Knack - Zing |
Grade 2 - Softsit Fabric 2570 - 2577
Content: 100% Polyester Backing: None;Abrasion:;100,000 Double Rubs (Cotton Duck)
Lightfastness:Grade 4 min. at 20 Hours Flammability: Passes CA Technical Bulletin 117-E
|Grade 2 Softsit -Graphene ||Grade 2 Softsit - Basalt ||Grade 2 Softsit - Kelvin ||Grade 2 Softsit - Molten |
Grade 3 Fabric Options:
Grade 3 - Symphony 3V20 - 3V28
Content: 100% Vinyl Backing: 100% Brushed Polyester Knit Abrasion: 100,000+ Double Rubs
Lightfastness: UV-Resistance 1000 Hours
Flammability: Passes California 117-E; BIFMA; UFAC, CLASS 1; MVSS 302; NFPA 260; IMO A.652 (16) 8.2 & 8.3; May Comply with California 133 when tested with suitable components; Can be treated to pass FAA 25.853
|Grade 3 Symphony - Piano [3C20]||Grade 3 Symphony - Drum [3V21]||Grade 3 Symphony - Trimpani [3V23]||Grade 3 Symphony - Flute [3V25]|
|Grade 3 Symphony - Trumpet [3V26]||Grade 3 Symphony - Cello [3V27]||Grade 3 Symphony - Harp [3V28]|
Grade 3 - Stage 3V50 - 3V59
Suitable for Healthcare use
Content: 100% Vinyl/Urethane Topcoat Backing: 100% Polyester Hi-Loft (TM) Finish: SILVERGUARD (R) & PERMABLOK3 (R) Abrasion: 930,000 Double Rubs
Lightfastness: Passes 1000 Hours
Flammability: Passes California 117-E (Equivalent to BIFMA); NFPA 260 (Equivalent to UFAC) Class1; Boston Fire Dept. Code (BFD 1X-1); FAA/FAR 25.853 (a); Fed. Stnd. 191A Test Method 5903.1 - Vertical Flammability Test; FMVSS 302; IMO A. 652(16) 8.2 & 8.3; NFPA 701 (sma
|Grade 3 Stage - Cats [3V50]||Grade 3 Stage - Chicago [3V52]||Grade 3 Stage - Grease [3V53]|
|Grade 3 Stage - Aida [3V55]||Grade 3 Stage - Shrek [3V58]||Grade 3 Stage - Fame [3V59]