What does 450/550N mean?
These numbers refer to the tilting mechanism of the ErgoDynamic. 

 
The N stands for Newton and corresponds with the level of resistance of the mechanism that causes the seat to tilt according to your weight shift. Heavier people need heavier mechanisms:

350N weight   < 110 lbs

450N weight   110 - 160 lbs

550N weight   160 - 240 lbs

650N weight   > 240 lbs (maximum 275 lbs, extra-wide seat)

 

Instructions on how to read the label on the back of your chair.

 


Testimonials

“Over the past several months I have become familiar with the products and services of Back Quality Ergonomics.  I also purchased one of their stools for use in a clinical setting.  What caught my attention initially was the quality craftsmanship.  In conversations with the principals in the company and the sales team I was delighted by their ability to succinctly describe the ergonomic benefits of their products and the many features that fit multiple positions and body heights.”  

Dr. J. Michael Flynn DC
1st Vice President WFC
Past Chairman of the Board ACA

Call us today:

BQ Ergonomics LLC

11888 West 91st Street

Overland park, KS 66214

Office: 877.938.9034

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