H202 : dillate h2o2 to 3% with wetting agent so you kill mold and cleanse any debis/contaminate & even some pest . Check daily with a minimum 60x scope if the contaminates on what they are or if they freely are a mold, pest or random contaminates.
* I was even keeping spider mites at bay ( two spot ) when in late flower ( same rate as above) and it worked great and when I lab tested my bud after harvest/cure . It all showed clean and mold free ( hard to do OD)