Common biological contaminants are mold spores, mildew, fungi, pollen, bacteria, animal dander, dust mites and their waste, cockroach, mice, or ant droppings and debris. Why should I be concerned about them.
Biological contaminants are capable of causing health problems for anyone.
The most common complaint is allergy, which may show as runny nose, watery or itchy eyes, coughing, sneezing, general itching, congestion, headache, dizziness or fatigue. One symptom receiving a great deal of attention is asthma. Some think that indoor air quality is a major trigger for asthma. Dust, pollen, mold, fungi, bacteria, and other materials are suspended in the air and enter whenever a door or window is opened. Animal dander comes from having pets in the house.