Air Purifier

Air Purifier

Author Name : Aditya Kumar Singh, Dhanraj Kumar Sharma, Vishal Kumar, Utkarsh Singh, Khushnood Ahmad, Prof. Mr.Aamir

ABSTRACT Air  pollution occurs  when  harmful  or  excessive  quantities  of  substances  including  gases, particles, and biological molecules are introduced into Earth's atmosphere. It may cause diseases, allergies and even death to humans; it may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built environment. Both human activity and natural processes can generate air pollution. Indoor air pollution and poor urban air quality are  listed as two of the world’s  worst toxic pollution  problems  in  the 2008 Blacksmith Institute World's Worst Polluted Places report. Outdoor air pollution alone causes 2. 1 to 4.21 million premature deaths annually.