While initially the masks will be exclusively available on Amazon India, they will later be made available on other e-commerce websites.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/amazon-india-dettol-join-hands-sell-air-pollution-masks
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-analysis-mumbai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-care