unwanted agents (disease or allergy causing) that are derived from or are living organisms (including viruses, bacteria, fungi, and protozoa, arthropods and mammal and bird antigens), that can be inhaled and can cause many types of health effects, including allergic reactions, respiratory disorders, hypersensitivity diseases, and infectious diseases. Also referred to as microbiologicals or microbials.unwanted agents (disease or allergy causing) that are derived from or are living organisms (including viruses, bacteria, fungi, and protozoa, arthropods and mammal and bird antigens), that can be inhaled and can cause many types of health effects, including allergic reactions, respiratory disorders, hypersensitivity diseases, and infectious diseases. Also referred to as microbiologicals or microbials.

This definition is in context to Carpet. See more contextual defintions for Biological Contaminants.