Powder Mildew Spores

About 2 months ago I had a 1000w crop completely wiped out by powder mildew. I have thrown the tent away, as it was a p.o.s. as it was, and am getting a new 8" fan and light to replace my current 6" setup. However, I was wondering about the floor fans and oscillating clip on fans that I want to continue to use. Could there be spores lying on the fans that could find my new crop? I have sprayed them all with a light bleach water, but am still slightly worried.
 
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