I am a physician with an environmental law background. there is absolutely every reason to believe the wax and emissions from that and the aerosolization of the scents in to the air will cause problems. the reps and usual MLM distributors are not trained in anything related to health or indoor environmental toxicology.
I encourage people who have to work around an individual who uses them to seek counsel and keep at it. It is a question of office ethics and erring on the side of public health versus allowing each individual in the shared space to be subject to the whims of anothers personal preferences.
These candles like plug ins should not be allowed in shared air spaces.