I am moving to Ontario for a PhD program of four years. I just called CSBA and they confirmed I will need to get my mattress professionally cleaned/fumigated. What counts as a professional cleaning in this regard? I don't want to sleep on a chemical treated mattress as I have chemical sensitivities, and would prefer to do a steam deep clean. Would that satisfy a CSBA agent since it kills bed bugs and that's their main concern with used mattresses?