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

 “As an ergonomics specialist, here's my two cents on a product I absolutely love. BQE has different designs with different price points, however, the beauty of the chair, unlike ANY in the industry, is that there is a "dynamic" backrest that moves with your spine.  That means when the clinician is actively working, they are in a slightly forward pitched (tipped) position, and when the clinician is in a passive state, the back rest fully supports the lumbar region--the most vulnerable part of the spine.  It's truly revolutionary and exceeds the criteria of my critical body of knowledge regarding posture.”

Juli Kagan, RDH, M.Ed.
Author, Speaker, Educator

Call us today:

BQ Ergonomics LLC

11888 West 91st Street

Overland park, KS 66214

Office: 877.938.9034

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