When should a mold control product whose selling point is prevention be applied during the cleanup process?

After cleanup and drying, to inhibit future spore germination.

The strategic sequence for applying mold control agents depends heavily on whether the product is intended for immediate kill or long-term prevention on already cleaned surfaces. For products marketed with a focus on prevention, which act as a barrier against subsequent spore germination, the optimal timing is after the area has been thoroughly cleaned of visible biomass and allowed to dry completely. Applying a preventative agent onto heavily contaminated, uncleansed material prevents the product from establishing its protective barrier correctly and may render it ineffective against the underlying issue. Therefore, post-cleanup and drying ensure the surface is prepared to receive the preventative application, allowing it to function as intended in inhibiting future growth cycles.