Biological pollutants include viruses, bacteria, animal dander, cockroach and rodent droppings, dust mites, mold, and mildew.

What are the health effects from exposure to biological pollutants?

     These pollutants are small enough to be inhaled and may trigger allergies, asthma, or flu-like symptoms.

What can I do to reduce exposure to biological pollutants?

     Many biological pollutants grow well in warm, moist areas. You can reduce moisture in your home by using ventilation fans and dehumidifiers to keep indoor humidity between 30 and 50 percent. Regularly empty and clean evaporation trays in dehumidifiers, refrigerators, and air conditioners. If carpets or building materials become water damaged, they should be thoroughly cleaned and dried or removed to get rid of mold.

     You can also reduce biological pollutants by regularly cleaning to remove dust, pet dander, and other allergens.