How to pronounce“vocc”in English

and worn that we cut up and then we connected them locally with uh organic uh felt and then put them on organic pads and the the finishes or the gluesfor the wall covering were low vocc the wallpapers themselves were sustainable it was just you know the the fills for the furniture or organic it just it youknow at every level we basically um measured like how green you know I always talk about it being shades of green we took and said okay how green