Effectiveness of Indoor Plant to Reduce CO2 in Indoor Environment Mohd Mahathir Suhaimi, A.M Leman, Azizi Afandi, Azian Hariri, Ahmad Fu’ad Idris, S.N. Mohd Dzulkifli and Paran Gani MATEC Web Conf., 103 (2017) 05004 Published online: 05 April 2017 DOI: 10.1051/matecconf/201710305004