Make sure you burn your carbon filters and tent....
But seriously if you dont do that then use physan and get everything soaked for at least 30 min and wash your pre- filters. Sulphur burn maybe to be safe. I would kill anything in veg you have, PM is systemic- and if you went into your bloom room and then veg, your veg plants now likely have it. Invest in a good dehum- one that is designed for growing- esp being in a basement. A quest 70 or 105 should do the trick.
I bring my night hum down to 40 during lights out the last two weeks.
And airflow, even during lights off.
As far as drying- I would normally say low and slow, but since you are dealing with pm and potentially moldy bud that might not be the best idea.