Date of Publication :20th October 2016

Abstract: Bioaerosols1 are particles which may be biological origin like microbes, plants, animals etc., or may be artificial like house dust,organic waste etc.,Most of the bioaerosols host on humans and moist places. Size of bioaerosol particles varies from below 1 μm to 100 μm in aerodynamic diameter. Indoor bio-aerosols may originate from outdoor air and indoor reservoirs.Major sources of bacteria and viruses are humans and pets-sneezing, coughing, dander and saliva.Fungi,many bacteria, protozoa, algae and green plants (pollen) are present outdoors that are induced indoors by natural or mechanical ventilation. Bioaerosols induce into human body by inhalation or by deposition on wounds.A possible reason of sick building syndrome (SBS) is the presence of Bioaerosols in the buildingDespite the defense mechanism of the body these Bioaerosols could cause damage to the body.Other common health effects of Bioaerosols are Viral: infectionssuch as Common cold, Influenza, Measles, Bronchitis,Fungal – Histoplasmosis, Cocciodomycosis and Blastomycosisand Antigens:Allergic diseases of Hypersensitivity pneumonitis (HP)Allergic asthma, Rhynitis and Pergillosis Control Strategies include -After identifying the airborne microorganisms the source can either be eliminated or its strength can be reduced.Preventive maintenance is one the most effective ways to control the microorganisms indoorsMaintenance of air handling systems andHumidifiers2 using the re-circulated water should not be used. Steam should be used instead of cold water in humidifiers, heating and HVAC systems.Disinfectants3 and biocides4 should be used in the humidifier water reservoirs, which kill the microorganisms

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