Concentrated 3 in 1 Air Freshener, Cleaner & Disinfectant with a pleasant floral fragrance. E4 boasts readily biodegradable surfactants and high-quality disinfectant, cleaning, and deodorizing properties. E4 boasts readily biodegradable surfactants and high-quality disinfectant, cleaning and deodorizing properties for use in healthcare, institutions, commercial buildings, and many other areas.