Moldex Instant Mold & Mildew Stain Remover- 7010 32 oz: Begins working the second it makes contact eliminating mold mildew algae and moss stains as you watch. Ideal for quick stain removal around the house and on most hard non-porous surfaces. Advanced bleach-based formula eliminates the need for scrubbing and includes Active Cling technology to keep cleaning agents on stains longer even on vertical surfaces.