a waste of money they are most certainly not both government agencies and independent labs show their efficacy if they are properly placed and maintainedyou can get an air purifier at home or in your office now at an affordable price this improves the overall air quality of your surroundings rally in 2003 two years before the party was ousted from power in biharwe dont open charwaha schools schools for those grazing their cattle now we want to make their children ias officers ips officers doctors and engineers he said ridiculing rjd chief lalu prasads pet project of charwaha vidyalayathe lantern rjds polls symbol era has ended and the led era has ushered in he wryly said