In reply to skog:
Yeah, and the answer might be moving to bigger spaces, full PPE including visors (particularly with older clients) and shorter sessions. Sounds like 15 mins is the key time. So maybe 10 mins treatment, air the room (for how long? Dunno), then another 10 mins.
Fwiw, we have been doing personal care on people with confirmed Covid for weeks and weeks with PPE which has largely been deemed insufficient. The nurse is the only staff member who has had it, and she wasn't wearing a mask prior to contracting it!
I'm not saying there is no risk, but with careful hygiene (my arms are red and sore with so much washing!) and fairly basic PPE, we seem to be doing ok. We have windows open all the time, which might have an impact? Obviously, we might just have been lucky! Some NHS bank staff who have been in to help us have commented on how well organized we are and how dilligent we are being with hygiene etc. Probably will be having an impact.
I guess if your wife is starting to think about reopening, maybe encourage her to find a good care home who have managed to have very few deaths etc and chat to them about it. Might be a good source of information.