Will It Be Safe To Hang Out The Wash?

Post-Lag B'Omer the air is full of soot from all the medurot, bonfires, in which burned wood, books, paper, and plastic-coated furniture. I should have done the laundry yesterday. But that may not have helped since I had some windows opened, and the soot gets into the house, and all fabrics begin to stink.

There should be a "last cleansing rain of the season" post Lag B'Omer.