Could you pass acute bronchitis on to someone else through kissing or sharing the same air space?

No.: "acute bronchitis" is due to hyper-reactivity of the bronchi to the irritation of a viral respiratory infection (vri). Less than 20% of population is susceptible to developing frequent cough, increased mucus production, wheezing with vri, those with an asthma-like tendency to over-react to airway irriation, in this case to the irritation of the vri. You can "catch" the vri not the "bronchitis.".

Yes...: You could spread the airway infection via droplet exposure. So, if you cough/sneeze and someone else inhales the droplets, they could catch your infection. You could also expose someone via kissing.