I guess these are things that you can tell the treating team next time when you get a chance @Tylie . Also, practitioners are quite aware of the effect of smoking on patients. Often, they do ask on admission whether someone is a smoker or not.
I'm so sorry the communication has been so poor for you. It sounds like the treating team do not feel it is 'safe' for staff or other patients to have him on the other side.
Why I'm saying this is because I've been down that path. I've been on the acute care side - for days on end. I think I've only ever been on the less acute side once (for a few days). Otherwise, my entire time was spent in acute care. I know it's not nice. I know it's not pleasant. And I can hear you miss him dearly.
With everything you have 'dobbed' about your husband, it sounds like they have used that to make a judgement that it is safer he stays in acute care.
Whatever it is, I just really hope he gets the care he deserves. Perhaps a medication review also to determine the best medication for him to take at this time. It sounds like the current medication is not the best for him.
At the same time, please look after yourself. You may also be interested in his carer support line https://arafmi.com.au/ You can contact them 24/7.
As for a community order, if you are talking about a community treatment order, it means he can go home, but every week/fortnight/month he must go to the outpatient clinic (usually for depot or medication or something like that). If he doesn't go, then there's the risk of having to go back into the ward.
Hope this clears a few things up. Please know you are not alone.