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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Clin Chest Med. 2012 Dec;33(4):649–665. doi: 10.1016/j.ccm.2012.08.003

Table 1.

List of indoor fuels

Solid fuels
Agricultural Crop Residues
Animal Dung
Wood
Charcoal
Coal
Liquid fuels
Kerosene
Ethanol & Methanol
Liquefied Petroleum Gas
Gas Fuels
Natural Gas
Methane Gas
Electricity