When it comes to equipping an office with furniture and all the other items needed, the manager or the owner of the company is responsible but the right type of ergonomic office chairs should be picked by each individual working inside the office.
No one can decide for you how you are going to sit for a long period of time or how exactly you will feel using a certain chair. So rather than spending a large amount of money on furniture that it is not really useful for the employees, each individual should be allowed to try out the chairs and decide which one best suits their posture and needs while sitting.
Some of us are taller or weigh more than others, some of us have long legs while others are suffering from different health problems that might interfere with their work. And no other equipment is more important than the chair they are sitting on every single day at the office. Do a little searching at https://www.everythingforoffices.com/seating-chairs/mesh-office-chairs/ to see what office chair best meets your needs and wants.
This way, every person will be able to decide what ergonomic office chairs are best for them so that they can sit comfortably and go on with their work all through the day.