Updated:May, 2026

10 Best Outdoor Carpet Mold And Mildew Remover of 2026

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Best Choice

9.9

Outstanding

RMR Brands

RMR-86 Instant Mold and Mildew Stain Remover Spray - Scrub Free Formula, 2 Pack - 32 oz

Why We Love It

GET RID OF STUBBORN MOLD AND MILDEW STAINS: Our instant spray cleaner removes the stains left behind from black mold and mildew. They tend to leave behind ugly staining that can go deep below the surface; Our professional-strength spray is specifically formulated to eliminate discoloration caused by mold and mildew
USING RMR-86: To safely and conveniently eliminate indoor mold and mildew stains and odors using RMR-86, proper ventilation and PPE should be used for each application
SAFE TO USE ON MULTIPLE SURFACES: Easily remove stubborn stains from decks, wood, vinyl siding, drywall, concrete floors, brick walls, kitchen surfaces, and other areas where mold and mildew tend to grow
FAST-ACTING SPRAY: Our powerful, fast-acting mold stain remover spray begins working instantly to target deeply embedded stains that linger on surfaces and hard-to-reach areas
NO SCRUBBING NEEDED: Simply spray our ready-to-use formula on the affected area and watch the stains disappear right before your eyes!

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Why We Love It

GET RID OF STUBBORN MOLD AND MILDEW STAINS: Our instant spray cleaner removes the stains left behind from black mold and mildew. They tend to leave behind ugly staining that can go deep below the surface; Our professional-strength spray is specifically formulated to eliminate discoloration caused by mold and mildew
USING RMR-86: To safely and conveniently eliminate indoor mold and mildew stains and odors using RMR-86, proper ventilation and PPE should be used for each application
SAFE TO USE ON MULTIPLE SURFACES: Easily remove stubborn stains from decks, wood, vinyl siding, drywall, concrete floors, brick walls, kitchen surfaces, and other areas where mold and mildew tend to grow
FAST-ACTING SPRAY: Our powerful, fast-acting mold stain remover spray begins working instantly to target deeply embedded stains that linger on surfaces and hard-to-reach areas
NO SCRUBBING NEEDED: Simply spray our ready-to-use formula on the affected area and watch the stains disappear right before your eyes!

How We Find the Top Picks

We use smart data tools to review thousands of products and stores, analyzing ratings, reviews, and popularity trends to highlight what truly matters to shoppers like you.

Our experts then refine the results, blending AI insights with real user experiences to deliver accurate, up-to-date rankings that help you choose with confidence.

9.5

Excellent

Wet & Forget

Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Ready to Use, 64 Ounce

Main Highlights

Wet & Forget Ready To Use Outdoor Cleaner comes with a high-capacity trigger sprayer for quick application to smaller surfaces; removes green and black stains caused by moss, mold, mildew, and algae, no scrubbing, no rinsing, no pressure washing, just wet it and forget it on multiple surfaces including, porch steps, headstones, fountains, planters, concrete, canvas, and upholstery
Use attached sprayer apply generously to dry surface on a cool day to avoid rapid evaporation of product, do not rinse, apply when rain is not forecasted within 4-5 hours, apply when the temperature is above 32° F
Cleans over time with the wind and rain, green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months, long-established stains may take 6-12 months; surfaces can stay clean up to 1 year or longer
It is bleach free and non-acidic; spray 100 feet away from lakes, ponds, rivers, and streams and flush plants with water before and after application
Each bottle treats 60 to 180 square feet; heavy stained and porous surfaces will absorb more product

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Main Highlights

Wet & Forget Ready To Use Outdoor Cleaner comes with a high-capacity trigger sprayer for quick application to smaller surfaces; removes green and black stains caused by moss, mold, mildew, and algae, no scrubbing, no rinsing, no pressure washing, just wet it and forget it on multiple surfaces including, porch steps, headstones, fountains, planters, concrete, canvas, and upholstery
Use attached sprayer apply generously to dry surface on a cool day to avoid rapid evaporation of product, do not rinse, apply when rain is not forecasted within 4-5 hours, apply when the temperature is above 32° F
Cleans over time with the wind and rain, green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months, long-established stains may take 6-12 months; surfaces can stay clean up to 1 year or longer
It is bleach free and non-acidic; spray 100 feet away from lakes, ponds, rivers, and streams and flush plants with water before and after application
Each bottle treats 60 to 180 square feet; heavy stained and porous surfaces will absorb more product

Value for Money

9.5

Excellent

STAR BRITE

STAR BRITE Professional Grade Mold & Mildew Stain Remover - 32 OZ (120032)

30% Off

Main Highlights

Quickly removes mold, mildew, moss and algae stains on contact without heavy scrubbing; EASY TO USE - spray, wait until the stain disappears, then rinse
STAIN REMOVER + CLEANER: High-alkaline, triple-action formula contains; BUFFERED-BLEACH to remove mold & mildew stains; CHELATING AGENTS to lift ground-in dirt; SURFACTANTS to cut grease & grime
BUFFERED-BLEACH TECHNOLOGY safe for marine / outdoor upholstery and outdoor acrylic fabrics including Sunbrella; Won't harm stitching or threads
More effective cleaning power than unbuffered "bleach-water" based products, or diluted supermarket brands
Works on; awnings, fiberglass, wood, concrete, drywall, siding, tile & grout, gutters, roofs, vinyl upholstery, most outdoor acrylic fabrics, and more *(test fabric for colorfastness before use)
Professional-strength, concentrated formula for boats, homes, RVs, household, and commercial use
Star brite products are proudly made in the USA since 1973
Product does not control mold, mildew, fungus or algae, only removes stains

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Main Highlights

Quickly removes mold, mildew, moss and algae stains on contact without heavy scrubbing; EASY TO USE - spray, wait until the stain disappears, then rinse
STAIN REMOVER + CLEANER: High-alkaline, triple-action formula contains; BUFFERED-BLEACH to remove mold & mildew stains; CHELATING AGENTS to lift ground-in dirt; SURFACTANTS to cut grease & grime
BUFFERED-BLEACH TECHNOLOGY safe for marine / outdoor upholstery and outdoor acrylic fabrics including Sunbrella; Won't harm stitching or threads
More effective cleaning power than unbuffered "bleach-water" based products, or diluted supermarket brands
Works on; awnings, fiberglass, wood, concrete, drywall, siding, tile & grout, gutters, roofs, vinyl upholstery, most outdoor acrylic fabrics, and more *(test fabric for colorfastness before use)
Professional-strength, concentrated formula for boats, homes, RVs, household, and commercial use
Star brite products are proudly made in the USA since 1973
Product does not control mold, mildew, fungus or algae, only removes stains

9.2

Excellent

RMR Brands

RMR Brands DIY Mold & Stain Remover Bundle, Complete Mold Killer & Mildew Prevention Kit, Disinfectant Spray, Includes 2-32 fluid ounce Bottles

Main Highlights

TWO FAST-ACTING FORMULAS: The ultimate mold prevention kit, our bundle includes 1 spray bottle of RMR-86 and 1 spray bottle of RMR-141 RTU to kill mold and mildew instantly while lifting difficult stains that are left behind
KILL MOLD AND MILDEW INSTANTLY: Our RMR-141 Disinfectant Spray Cleaner and Fungicide kills harmful molds and mildews, and prevents regrowth by completely eliminating the roots that other sprays often leave behind
REMOVE STUBBORN STAINS IN SECONDS: Our RMR-86 Instant Mold & Mildew Stain Remover begins working immediately to target stubborn stains that linger on surfaces and hard-to-reach areas
NO SCRUBBING NEEDED: Simply spray our ready-to-use formulas on the affected area and watch the mold and mildew disappear right before your eyes!
SAFE TO USE ON MULTIPLE SURFACES: Use this powerful duo on wood decks, concrete floors, brick walls, carpeted areas, kitchen tiles, and any space where mold and mildew tend to grow

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Main Highlights

TWO FAST-ACTING FORMULAS: The ultimate mold prevention kit, our bundle includes 1 spray bottle of RMR-86 and 1 spray bottle of RMR-141 RTU to kill mold and mildew instantly while lifting difficult stains that are left behind
KILL MOLD AND MILDEW INSTANTLY: Our RMR-141 Disinfectant Spray Cleaner and Fungicide kills harmful molds and mildews, and prevents regrowth by completely eliminating the roots that other sprays often leave behind
REMOVE STUBBORN STAINS IN SECONDS: Our RMR-86 Instant Mold & Mildew Stain Remover begins working immediately to target stubborn stains that linger on surfaces and hard-to-reach areas
NO SCRUBBING NEEDED: Simply spray our ready-to-use formulas on the affected area and watch the mold and mildew disappear right before your eyes!
SAFE TO USE ON MULTIPLE SURFACES: Use this powerful duo on wood decks, concrete floors, brick walls, carpeted areas, kitchen tiles, and any space where mold and mildew tend to grow

9.0

Excellent

Wet & Forget

Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 128 Fluid Ounces

Main Highlights

Wet & Forget Concentrate Outdoor Cleaner removes green and black stains caused by moss, mold, mildew, and algae, no scrubbing, no rinsing, no pressure washing, just wet it and forget
Surfaces including driveway, patio, roof, siding, deck, vinyl, wood, concrete, canvas, aluminum, and upholstery
Mix 1 part Wet & Forget with 5 parts water in a garden sprayer, spray dry surface on a cool day to avoid rapid evaporation of product, do not rinse, apply when rain is not forecasted within 4-5 hours
Apply when the temperature is above 32° F; unused product can be stored mixed and ready in sprayer for future applications
Cleans with the wind and rain, green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months, long-established stains may take 6-12 months; surfaces can stay clean up to 1 year or longer

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Main Highlights

Wet & Forget Concentrate Outdoor Cleaner removes green and black stains caused by moss, mold, mildew, and algae, no scrubbing, no rinsing, no pressure washing, just wet it and forget
Surfaces including driveway, patio, roof, siding, deck, vinyl, wood, concrete, canvas, aluminum, and upholstery
Mix 1 part Wet & Forget with 5 parts water in a garden sprayer, spray dry surface on a cool day to avoid rapid evaporation of product, do not rinse, apply when rain is not forecasted within 4-5 hours
Apply when the temperature is above 32° F; unused product can be stored mixed and ready in sprayer for future applications
Cleans with the wind and rain, green stains clean up within 1-2 weeks, black stains or heavy, stubborn stains can take several months, long-established stains may take 6-12 months; surfaces can stay clean up to 1 year or longer

8.8

Very Good

30 SECONDS

30 SECONDS Pro Mold and Mildew Stain Remover | Scrub Free | Brighter Results Instantly | Ready To Use | 32 Fl. Oz.

Main Highlights

Use In Bathroom Tile and Grout, Bathtub, Soap Scum, Showers, Drywall, Wood, Fences, Decks, Vinyl Sidng, Concrete Floors, Kitchen, Brick Walls, and other areas where mold and mildew can grow
NO SCRUBBING REQUIRED: Avoid the hassle and backbreaking work of scrubbing tough stains
2X STRONGER FORMULA: 2X Stronger than 30 SECONDS Outdoor Cleaner
BRIGHTER RESULTS INSTANTLY: Noticeably brightens surfaces, removing mold and mildew stains as you watch
REMOVES BLACK MOLD STAINS & MORE

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Main Highlights

Use In Bathroom Tile and Grout, Bathtub, Soap Scum, Showers, Drywall, Wood, Fences, Decks, Vinyl Sidng, Concrete Floors, Kitchen, Brick Walls, and other areas where mold and mildew can grow
NO SCRUBBING REQUIRED: Avoid the hassle and backbreaking work of scrubbing tough stains
2X STRONGER FORMULA: 2X Stronger than 30 SECONDS Outdoor Cleaner
BRIGHTER RESULTS INSTANTLY: Noticeably brightens surfaces, removing mold and mildew stains as you watch
REMOVES BLACK MOLD STAINS & MORE

8.6

Very Good

Home Armor

Home Armor Outdoor Cleaner+, 64 oz., Remove Stains from Mold, Mildew, Algae, Dirt and Grime for Visible Results in Seconds, No Scrubbing Required, Plant Safe When Used as Directed

Main Highlights

REMOVE TOUGH STAINS: Home Armor Outdoor Cleaner+ powers away dirt, grime, algae, mold and mildew stains. No scrubbing required.
VISIBLE RESULTS IN SECONDS: This Home Armor outdoor cleaner delivers efficient, visible results, cleaning and brightening a variety of different surfaces in seconds. Remove mold and algae stains, dirt and grime from outdoor surfaces.
CUSTOMIZABLE HOSE END: Home Armor Outdoor Cleaner+ features a customizable sprayer for ultimate convenience. Remove dirt and debris for a cleaner surface.
MULTI-SURFACE OUTDOOR CLEANER that's ideal for use on brick, wood, concrete and vinyl. Do not use on cedar or redwood that is less than 2 years old and avoid contact with metal surfaces, clothing, carpet, fabrics, floor coverings or vegetation.
DIRECTIONS FOR USE: Attach hose to bottle, ensure it is in the "OFF" position. Turn water on and rinse surrounding plants with water. Turn to "CLEAN" or "CLEAN+" and spray surface. Wait 10 minutes and then rinse surface and surrounding plants again.

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Main Highlights

REMOVE TOUGH STAINS: Home Armor Outdoor Cleaner+ powers away dirt, grime, algae, mold and mildew stains. No scrubbing required.
VISIBLE RESULTS IN SECONDS: This Home Armor outdoor cleaner delivers efficient, visible results, cleaning and brightening a variety of different surfaces in seconds. Remove mold and algae stains, dirt and grime from outdoor surfaces.
CUSTOMIZABLE HOSE END: Home Armor Outdoor Cleaner+ features a customizable sprayer for ultimate convenience. Remove dirt and debris for a cleaner surface.
MULTI-SURFACE OUTDOOR CLEANER that's ideal for use on brick, wood, concrete and vinyl. Do not use on cedar or redwood that is less than 2 years old and avoid contact with metal surfaces, clothing, carpet, fabrics, floor coverings or vegetation.
DIRECTIONS FOR USE: Attach hose to bottle, ensure it is in the "OFF" position. Turn water on and rinse surrounding plants with water. Turn to "CLEAN" or "CLEAN+" and spray surface. Wait 10 minutes and then rinse surface and surrounding plants again.

8.3

Very Good

CLR

CLR Brands Mold and Mildew Stain Remover, 32 oz. Spray Bottle, Pack of 2, Multi-Surface Stain Remover, Works on Tile, Wood, Concrete, Glass, and More

Main Highlights

TOUGH ON STAINS: Powerful bleach-free formula made to remove tough mold and mildew stains, with a formula that's safer for family and pets. Use on shower walls, bathroom tile, marble countertops and kitchen grout.
MULTI-SURFACE: Effective across a wide variety of surfaces, this spray mold remover tackles stains on painted walls, ceramic tile, hardwood floors, fabrics, glass, or laminate countertops.
FAST-ACTING: Fast acting and tough on surface stains, this mold and mildew spray starts breaking down stains in minutes, helping restore bathrooms, kitchens, and other surfaces.
EPA-CERTIFIED: CLR Brands Mold & Mildew Stain Remover is part of the EPA's Safer Choice Program recognizing the product as a safer alternative to chemicals and contains no phosphates, ammonia or bleach.
BEEN THERE. OUTDONE THAT: CLR Brands offers products for all of your household needs including Calcium, Lime, Rust Remover, Brilliant Bath, and Garbage Disposal Cleaner.

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Main Highlights

TOUGH ON STAINS: Powerful bleach-free formula made to remove tough mold and mildew stains, with a formula that's safer for family and pets. Use on shower walls, bathroom tile, marble countertops and kitchen grout.
MULTI-SURFACE: Effective across a wide variety of surfaces, this spray mold remover tackles stains on painted walls, ceramic tile, hardwood floors, fabrics, glass, or laminate countertops.
FAST-ACTING: Fast acting and tough on surface stains, this mold and mildew spray starts breaking down stains in minutes, helping restore bathrooms, kitchens, and other surfaces.
EPA-CERTIFIED: CLR Brands Mold & Mildew Stain Remover is part of the EPA's Safer Choice Program recognizing the product as a safer alternative to chemicals and contains no phosphates, ammonia or bleach.
BEEN THERE. OUTDONE THAT: CLR Brands offers products for all of your household needs including Calcium, Lime, Rust Remover, Brilliant Bath, and Garbage Disposal Cleaner.

8.1

Very Good

RMR Brands

RMR-86 Pro Contractor Grade Mold Stain & Mildew Stain Remover Cleaning Solution, Professional Quality Formula, 1 Gallon

Main Highlights

TACKLES TOUGH MOLD STAINS INSTANTLY: RMR-86 PRO is our most powerful mold stain remover that utilizes special deep penetrating surfactants with a unique hybrid of pure sodium hypochlorite to remove stubborn stains in just seconds.
CONTRACTOR GRADE: Our extra strength stain removal solution is specifically created for professional use and is 5x stronger than other stain removal products on the market
READY TO USE: Our ultra strength formula is ready to use and instantly dissolves difficult mold and mildew stains without scrubbing or sanding to get the job done quickly and efficiently, saving you both time and money
MITIGATES DAMAGE: This extra-strength, contactor-grade stain remover is made by experts for professional use, removing mold and mildew stains left behind by floods and natural disasters with 5 times the cleaning power of other stain removal products
SAFE TO USE ON MULTIPLE SURFACES: RMR-86 PRO removes tough stains quickly from attics, crawlspaces, wood, concrete floors, brick walls, plywood, drywall, decks and other areas where mold and mildew tend to grow

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Main Highlights

TACKLES TOUGH MOLD STAINS INSTANTLY: RMR-86 PRO is our most powerful mold stain remover that utilizes special deep penetrating surfactants with a unique hybrid of pure sodium hypochlorite to remove stubborn stains in just seconds.
CONTRACTOR GRADE: Our extra strength stain removal solution is specifically created for professional use and is 5x stronger than other stain removal products on the market
READY TO USE: Our ultra strength formula is ready to use and instantly dissolves difficult mold and mildew stains without scrubbing or sanding to get the job done quickly and efficiently, saving you both time and money
MITIGATES DAMAGE: This extra-strength, contactor-grade stain remover is made by experts for professional use, removing mold and mildew stains left behind by floods and natural disasters with 5 times the cleaning power of other stain removal products
SAFE TO USE ON MULTIPLE SURFACES: RMR-86 PRO removes tough stains quickly from attics, crawlspaces, wood, concrete floors, brick walls, plywood, drywall, decks and other areas where mold and mildew tend to grow

8.1

Very Good

Jelmar

CLR PRO Heavy Duty Bleach-Free Mold and Mildew Stain Remover, 1 Gallon Bottle, Unscented Multi-Surface Stain Remover, Works on Tile, Wood, Concrete, Glass and More

Main Highlights

TOUGH ON STAINS: This powerful bleach-free formula effectively removes mold and mildew stains, with a formula safer for family and pets. Use on shower walls, bathroom tile, marble countertops and kitchen grout.
MULTI-SURFACE: Effective on a wide variety of surfaces, this remover can tackle stains on painted walls, ceramic tile, hardwood floors, baseboards, fabrics, glass, marble and laminate countertops.
FAST-ACTING: Professional formula begins breaking down mold and mildew stains in minutes, helping restore bathrooms, kitchens and other surfaces.
EPA-CERTIFIED: CLR PRO Mold & Mildew Stain Remover is part of the EPA's Safer Choice Program recognizing the product as a safer alternative to chemicals and contains no phosphates, ammonia or bleach.
PROFESSIONAL CLEAN: CLR PRO offers a professional line of products for the commercial and industrial segments including degreasers, descalers, rust remover, stain removers, and drain maintainers.
rmr-86 instant mold and mildew stain remover cleaner armor removal mold stain remover and mildew remover concrobium mold control mold remover spray black mold remover mold control spray wall mold remover mold and mildew remover remover bathroom removal spray mold killer mold spray mold cleaner shower mold bathroom mold mold removal for walls mold mildew mildew cleaner mildew spray active anti car prevention mold and mildew remover bathroom cleaner mold armor mildew removal spray active mold
CLR PRO Heavy Duty Bleach-Free Mold and Mildew Stain Remover, 1 Gallon Bottle

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Main Highlights

TOUGH ON STAINS: This powerful bleach-free formula effectively removes mold and mildew stains, with a formula safer for family and pets. Use on shower walls, bathroom tile, marble countertops and kitchen grout.
MULTI-SURFACE: Effective on a wide variety of surfaces, this remover can tackle stains on painted walls, ceramic tile, hardwood floors, baseboards, fabrics, glass, marble and laminate countertops.
FAST-ACTING: Professional formula begins breaking down mold and mildew stains in minutes, helping restore bathrooms, kitchens and other surfaces.
EPA-CERTIFIED: CLR PRO Mold & Mildew Stain Remover is part of the EPA's Safer Choice Program recognizing the product as a safer alternative to chemicals and contains no phosphates, ammonia or bleach.
PROFESSIONAL CLEAN: CLR PRO offers a professional line of products for the commercial and industrial segments including degreasers, descalers, rust remover, stain removers, and drain maintainers.
rmr-86 instant mold and mildew stain remover cleaner armor removal mold stain remover and mildew remover concrobium mold control mold remover spray black mold remover mold control spray wall mold remover mold and mildew remover remover bathroom removal spray mold killer mold spray mold cleaner shower mold bathroom mold mold removal for walls mold mildew mildew cleaner mildew spray active anti car prevention mold and mildew remover bathroom cleaner mold armor mildew removal spray active mold
CLR PRO Heavy Duty Bleach-Free Mold and Mildew Stain Remover, 1 Gallon Bottle

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