Foster First Defense Disinfectant (40-80) is a versatile, professional-grade antimicrobial solution engineered to deliver powerful cleaning, disinfecting, and deodorizing performance in a single application. This EPA-registered, ready-to-use formulation utilizes quaternary ammonium chloride chemistry to effectively eliminate odor-causing bacteria while inhibiting the growth of mold and mildew on treated surfaces.

Designed for use in water damage restoration as well as general sanitation, First Defense is effective on a wide range of materials, including porous, semi-porous, and non-porous surfaces. It can be applied to carpets, floors, walls, trim, and finished woodwork, as well as hard surfaces such as metal, heat pump, countertops, and HVAC components like coils and drain pans. This broad compatibility makes it suitable for homes, hospitals, schools, food processing facilities, and industrial environments.

The product demonstrates broad-spectrum antimicrobial efficacy, including activity against bacteria such as Staphylococcus aureus, Streptococcus pyogenes, and Pseudomonas aeruginosa, as well as viruses and fungi when used as directed. It is particularly effective in controlling odors associated with microbial contamination following water intrusion events.

First Defense is supplied ready to use and should not be diluted, ensuring consistent performance and ease of application. It can be applied using a cloth, mop, sponge, or coarse spray. With its combination of convenience, effectiveness, and versatility, Foster First Defense is a reliable solution for maintaining clean and hygienic environments.

Key Features

• EPA-registered disinfectant, cleaner, fungicide, and deodorizer in one
• Kills bacteria, viruses, and fungi while inhibiting mold and mildew growth
• Effective on porous, semi-porous, and non-porous surfaces
• Ready-to-use formula—no dilution required
• Ideal for water damage restoration and broad sanitation applications