BRIGHTER RESULTS INSTANTLY: Noticeably brightens indoor and outdoor surfaces, removing black mold and mildew stains as you watch, with no scrubbing or pressure washing required for fast, visible results NO SCRUBBING REQUIRED: Avoid the hassle and backbreaking work of scrubbing tough stains; the PRO formula lifts mold and mildew stains on contact so you simply apply, watch and rinse where needed 2X STRONGER FORMULA: The PRO formula is 2X stronger than the standard 30 SECONDS Outdoor Cleaner, made for your toughest black mold and mildew stains and messes on both indoor and outdoor surfaces OUTDOOR AND INDOOR USE: Use on siding, fences, decks, concrete floors, brick walls, drywall, wood, kitchen surfaces, bathroom tile and grout, bathtub soap scum and showers where mold and mildew can grow REMOVES BLACK MOLD STAINS & MORE: Targets stubborn black mold and mildew stains on a wide range of surfaces, giving a brighter, cleaner result indoors and outdoors without scrubbing or pressure washing PRO QUALITY RESULTS: 30 SECONDS Professional Mold & Mildew Stain Remover removes tough stains instantly. This powerful PRO formula effectively removes stains from black mold, mildew and more, and you can watch stains fade away without scrubbing while it rapidly brightens both indoor and outdoor surfaces. It is 2X stronger than the standard 30 SECONDS Outdoor Cleaner, made for the toughest mold and mildew stains that regular cleaners leave behind, so you get visible results on first application. Outdoors, use it on siding, fences, decks, concrete floors and driveways, brick walls, patios, painted surfaces, stucco, steps and other spots where mold and mildew grow after exposure to moisture and weather. Indoors, it works on drywall, wood, bathroom tile and grout, bathtubs, soap scum, showers, kitchen surfaces, counters, sinks and other areas where mold and mildew develop in humid or damp conditions. The formula does the work so you do not have to scrub, saving effort on large surface areas like a full deck, a run of siding, a basement wall or a bathroom with heavy grout staining. Ready to use straight from the bottle, it needs no mixing, no diluting and no pressure washing; just spray, watch the stains lift and rinse where needed. Whether you are addressing a black mold streak on siding, brightening mildew-stained bathroom grout, cleaning up a deck or patio after a stretch of wet weather, tackling mold stains on a concrete basement floor, or handling a flood or water-damage cleanup indoors, this PRO-strength formula handles the job in one application without the backbreaking effort of scrubbing. The PRO formula is a practical choice for homeowners who want professional-level results on stubborn staining without hiring a cleaning service, and it handles both routine maintenance and heavy one-time jobs like flood damage or basement mold cleanup. All 30 SECONDS products are manufactured in the USA with US and imported parts.