Experts say such appliances will make living costlier, thus all the more difficult
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-purifiers-new-quick-fix-unpleasant-reality
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/punjab
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmentalists
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution