According to the report of World Health Organization (WHO) published in 2012, on household air pollution has stated that indoor air pollution is one of the top five environmental health risks which cause one out of eight people deaths. Moreover, approximately 430,000 premature deaths were reported in the European region due to frequent exposure of people with toxic levels of fine particulate matter (PM2.5). Many new players has entered the market after observing the potential and rising ... Read more