This cocktail of strains was selected out of hundreds of strains based on their absolute safety for human and animals and efficacy against a wide range of allergens, pathogens and other harmful organisms that reside in our indoors. Additional criteria tested, was the ability of the group to provide broad protection not available by each individual, creating a case where 1+1 equal more than 2. The Enviro-Biotics formula performed with significant efficacy under various conditions and topologies.