---
product_id: 31999577
title: "Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black"
brand: "workpro"
price: "€ 1378.15"
currency: EUR
in_stock: true
reviews_count: 3
category: "Work Pro"
url: https://www.desertcart.pt/products/31999577-quantum-9000-series-ergonomic-mid-back-mesh-mesh-chair-black
store_origin: PT
region: Portugal
---

# Ergonomic mid-back mesh design Fully adjustable seat height, depth & armrests Breathable mesh fabric for airflow Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black

**Brand:** workpro
**Price:** € 1378.15
**Availability:** ✅ In Stock

## Summary

> 🖥️ Elevate your workspace with ergonomic precision and breathable comfort — because your hustle deserves the best seat in the house.

## Quick Answers

- **What is this?** Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black by workpro
- **How much does it cost?** € 1378.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/31999577-quantum-9000-series-ergonomic-mid-back-mesh-mesh-chair-black)

## Best For

- workpro enthusiasts

## Why This Product

- Trusted workpro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Comfort Fit:** Adjust seat height, depth, backrest, and armrests to your exact preference for all-day productivity.
- • **Stay Cool & Focused:** Premium mesh fabric promotes airflow, keeping you comfortable during marathon work sessions.
- • **Built to Last & Support:** Durability tested to hold up to 275 lbs with sturdy construction that stands the test of time.
- • **Integrated Tilt Mechanism:** Smooth seat and back tilt with adjustable tension lets you find your perfect recline and lock it in place.
- • **Effortless Mobility & Stability:** Smooth-rolling casters glide silently on hardwood or rugs without leaving marks.

## Overview

The WorkPro Quantum 9000 Series Mid-Back Mesh Chair combines professional-grade ergonomic adjustability with breathable mesh fabric, supporting up to 275 lbs. Designed for 8-10 hours of daily use, it features customizable seat height, depth, armrests, and back tilt tension, delivering a tailored fit that rivals premium office chairs at a fraction of the price.

## Description

Buy WorkPro® Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black: Home Office Desk Chairs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 6 Year review: definitely good enough - This is basically the entry level to luxury office chairs. Like a Longines or a Seiko. It is absolutely functional in all of the most important ways that a herman miller is - the mesh is comfy and reliable (I've been using it WFH for six years), the back support is excellent and sturdy, the rollers are smooth and the adjustment tools are still in good order six years into daily use. I have basically no complaints about any of the above (as a 5'9" man, 200 pounds). The only noticeable wear on the entire chair is the armrest cushions (not the armrests themselves). The cushion has worn somewhat, but in my opinion that is to be expected. It's just foam and easily the least important part of the overall experience to the chair. The armrest wear only began to show about four or five years in. I'd recommend buying a cheap seat cover, made of cloth to help retain the durability of the seat mesh, but otherwise I only have good things to say about it. It's in the same ballpark as the herman miller aeron in terms of overall feel, but definitely a half-step down. That said, it's also nearly a third of the normal price and absolutely good enough for a daily driver for a WFH professional like myself.
Review: Finally, an office chair that actually is comfortable, fully adjustable, and affordable - I went to an office supply store and saw this chair on sale for 20% off its retail price, so I sat in it, adjusted it to fit me, and about 15 minutes later, I realized I was still siting in it because it was so comfortable. I thought I should check desertcart to see what it was going for there and it was $230 less than the retail price, or 45% off! So I ordered it on desertcart. I was concerned that maybe it would be a refurbished chair (especially after reading some reviews of this chair arriving with damage), but when I got it just a day and a half later, it was is perfect condition, well-packaged, with good instructions and everything in the box needed to assemble it. The UPS delivery guy carried the box into my house, which was nice, since it weighed over fifty pounds. I took it up to my study with my wife's help, and started setting it up. I used the box on its tall side as my worktable, and 8 bolts later, after affixing the wheels, I was ready to plug the chair into its gas elevation pedestal. (Hint: it's a good idea to have a standard Phillips head (#2) screwdriver handy to make sure all the screws are tight before assembling it, and then make sure all the assembly bolts are tight (nice that they provide lock washers and spares for all the bolts, along with a good, long-handled Allen wrench). Once assembled, I found it useful to read the adjustment instructions carefully, and to experiment with several different combinations of seat position and back position and tilt tension. The base is very stable and rolls well without marking my hardwood floors (the chair will even roll over to and across the thin area rug in my home office/bedroom, with a little finesse). I find the armrests to be comfortably padded (firm, but just about right for me), and the three armrest adjustments are actually useful. It's easy to raise and lower the arms with four or five different levels to choose from. Now, the best thing about this chair is that it has an integrated seat and back tilt, so when you tilt back the seat tilts back a little, too. Very nice, especially because you can really dial in the back tension, from very firm to very loose. You can also lock out the tilt completely and raise and lower the back to get hit your back and lower shoulders just right. Finally, you can actually move the seat backward or forward relative to the back, base, and armrests, so you can custom fit it to your legs and make it so the back hits and supports your lumbar area just right. Even some super expensive chairs don't offer this feature. So, bottom line, you can really dial this chair in for a custom fit. I'm sitting in it right now, and can feel the cool breeze on my seat and back through the very substantial mesh.

## Features

- Find your ideal seating position easily with the WorkPro Quantum 9000 Series Mid-Back Desk Chair. The seat back of this mesh desk chair raises or lowers with a ratchet, the seat can be adjusted in height and depth and the armrests are fully adjustable, so you can truly customize your seat to fit you. With mesh fabric, this comfy office chair promotes airflow to help you stay cool and comfortable while tackling your to-do list. Plus, the lumbar feature supports your lower back, while the waterfal
- Ergonomic mesh back and mesh fabric seat construction.
- Recommended for professional use 8-10 hours per day.
- Weight capacity tested to support 275 lb.
- Overall Dimensions: 37-1/2" to 43-3/4"H x 29-1/2"W x 28"D.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00JRE37Z0 |
| Age Range (Description) | Adult |
| Arm Style | With arms |
| Assembly Instructions Description | Assembly required. Follow the instructions provided to set up the chair. |
| Back Style | Mesh Back |
| Best Sellers Rank | #306,296 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #766 in Home Office Desk Chairs |
| Brand | WorkPro |
| Color | Black |
| Cushion Style | Boxed Edge |
| Customer Reviews | 4.4 4.4 out of 5 stars (799) |
| Date First Available | April 28, 2013 |
| Fabric Type | 100% Nylon |
| Fill Material | Foam |
| Finish Type | Ergonomic |
| Form Factor | Ergonomic,Modern |
| Included Components | Cushion |
| Indoor/Outdoor Usage | Indoor |
| Is Customizable | No |
| Is Discontinued By Manufacturer | No |
| Item Weight | 54.7 pounds |
| Item model number | Quantum 9000 |
| Leg Style | Tapered Leg |
| Manufacturer | WorkPro |
| Maximum Weight Recommendation | 275 Pounds |
| Model Name | WorkPro Quantum |
| Pattern | Solid |
| Product Care Instructions | Spot Clean |
| Product Dimensions | 28"D x 29.5"W x 37.5"H |
| Reclining Position Count | 3 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Back Interior Height | 37.5 Inches |
| Seat Depth | 28 inches |
| Seat Height | 37.5 Inches |
| Shape | L-Shape |
| Size | True |
| Special Feature | Arm Rest |
| Style | Classic |
| Surface Recommendation | Indoor |
| Tilting | No |
| UPC | 735854937942 735854100568 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** WorkPro
- **Color:** Black
- **Material:** Plastic
- **Product Dimensions:** 28"D x 29.5"W x 37.5"H
- **Size:** True

## Images

![Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black - Image 1](https://m.media-amazon.com/images/I/81Q+goGftkL.jpg)

## Questions & Answers

**Q: can you use the chair on hardwood floors**
A: The wheels are standard hard plastic with 2 wheels mounted on each of the 5 "legs" or spokes of the chair. The chair will roll easily on hardwood but the floor finish will wear over time. If it is a concern, replacement wheels that are similar to in line skate wheels will roll more easily and help to prevent wear of the floor finish.

**Q: Backrest hieght does not stay, just falls back down. Anyone else ?**
A: Same. Chair would be worth it, but the back just won't stay clicked and there's no way around it.

**Q: Can you rock smoothly back and forth in this chair, or does it have a limited range of motion?**
A: Yes. There are 3 switches and a knob. The switches each lock or release a different adjustment. The switch on the left is for adjusting the angle of the backrest. When it is released, the backrest can rock back and forth, from about 90 degrees to about 130 degrees. The knob on the bottom right twists to adjust the tension of the backrest hinge. Depending on how heavy or tall you are, this is helpful to prevent bumping too hard against the limit of the recline. The switches on the right are for height adjustment and sliding the seat back and forth.

**Q: What is the minimum and maximum seat height?**
A: From the top of the seat cushion minimum is about 17" and maximum is 20". The travel distance is 3".
Hope this helps you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 6 Year review: definitely good enough
*by M***K on August 12, 2025*

This is basically the entry level to luxury office chairs. Like a Longines or a Seiko. It is absolutely functional in all of the most important ways that a herman miller is - the mesh is comfy and reliable (I've been using it WFH for six years), the back support is excellent and sturdy, the rollers are smooth and the adjustment tools are still in good order six years into daily use. I have basically no complaints about any of the above (as a 5'9" man, 200 pounds). The only noticeable wear on the entire chair is the armrest cushions (not the armrests themselves). The cushion has worn somewhat, but in my opinion that is to be expected. It's just foam and easily the least important part of the overall experience to the chair. The armrest wear only began to show about four or five years in. I'd recommend buying a cheap seat cover, made of cloth to help retain the durability of the seat mesh, but otherwise I only have good things to say about it. It's in the same ballpark as the herman miller aeron in terms of overall feel, but definitely a half-step down. That said, it's also nearly a third of the normal price and absolutely good enough for a daily driver for a WFH professional like myself.

### ⭐⭐⭐⭐⭐ Finally, an office chair that actually is comfortable, fully adjustable, and affordable
*by A***Y on May 2, 2024*

I went to an office supply store and saw this chair on sale for 20% off its retail price, so I sat in it, adjusted it to fit me, and about 15 minutes later, I realized I was still siting in it because it was so comfortable. I thought I should check Amazon to see what it was going for there and it was $230 less than the retail price, or 45% off! So I ordered it on Amazon. I was concerned that maybe it would be a refurbished chair (especially after reading some reviews of this chair arriving with damage), but when I got it just a day and a half later, it was is perfect condition, well-packaged, with good instructions and everything in the box needed to assemble it. The UPS delivery guy carried the box into my house, which was nice, since it weighed over fifty pounds. I took it up to my study with my wife's help, and started setting it up. I used the box on its tall side as my worktable, and 8 bolts later, after affixing the wheels, I was ready to plug the chair into its gas elevation pedestal. (Hint: it's a good idea to have a standard Phillips head (#2) screwdriver handy to make sure all the screws are tight before assembling it, and then make sure all the assembly bolts are tight (nice that they provide lock washers and spares for all the bolts, along with a good, long-handled Allen wrench). Once assembled, I found it useful to read the adjustment instructions carefully, and to experiment with several different combinations of seat position and back position and tilt tension. The base is very stable and rolls well without marking my hardwood floors (the chair will even roll over to and across the thin area rug in my home office/bedroom, with a little finesse). I find the armrests to be comfortably padded (firm, but just about right for me), and the three armrest adjustments are actually useful. It's easy to raise and lower the arms with four or five different levels to choose from. Now, the best thing about this chair is that it has an integrated seat and back tilt, so when you tilt back the seat tilts back a little, too. Very nice, especially because you can really dial in the back tension, from very firm to very loose. You can also lock out the tilt completely and raise and lower the back to get hit your back and lower shoulders just right. Finally, you can actually move the seat backward or forward relative to the back, base, and armrests, so you can custom fit it to your legs and make it so the back hits and supports your lumbar area just right. Even some super expensive chairs don't offer this feature. So, bottom line, you can really dial this chair in for a custom fit. I'm sitting in it right now, and can feel the cool breeze on my seat and back through the very substantial mesh.

### ⭐⭐⭐⭐⭐ Extremely comfortable with several adjustment options
*by M***K on April 4, 2024*

I had an office chair I'd been used for years. It was an inexpensive swivel chair I got at IKEA. It was OK but not designed for all day use. When I started my new job, I began to spend around 10+ hours in my home office. Back and shoulder pain ensued. Saw this chair at a store and it seemed like it was solid construction and comfortable. Weeks later saw the same chair on Amazon so I purchased. It was fairly simple to assemble. The only difficulty is needing a way to place the seat upside down on an elevated surface to attach the arms and back. Not too big of an issue since I had a barstool with a cushion and used that. If I didn't have that, it would have been much more difficult to assemble. The seat, arms, and back are heavy so it has to be something rather sturdy to set it on for assemble. The chair is extremely comfortable. I'm impressed with all of the way it can be adjusted. In particular, I like the ability to move the seat forward/backward which allows me to set the perfect distance from the seat to the back. Initially I thought the arms would be a problem but my wife suggested I adjust them so that my arm rest on the armrest while I use my mouse or type. That is a huge help to prevent knots in between my shoulder blade from forming over hours of typing/mousing. The mesh is nice to keep me cool and the springiness seems to be just right. Looking forward to putting some "miles" on this chair. Initially, I'm thinking this chair is going to quickly become my favorite of all time.

## Frequently Bought Together

- WorkPro® Quantum 9000 Series Ergonomic Mid-Back Mesh/Mesh Chair, Black
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- Lifelong Original Office Chair Wheels (As Seen On CNN) Replacement Rubber Chair Casters for Hardwood Floors and Carpet, Set of 5, Heavy Duty Casters for Chairs to Replace Office Chair Mats - Fits 98%

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-31*