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. 2015 Feb 12;15:126. doi: 10.1186/s12889-015-1414-1

Figure 4.

Figure 4

Traditional and improved stove technologies being compared in the REACCTING study, shown with Stove Use Monitors (SUMs) attached. Top left: traditional three-stone stove. Top right: traditional charcoal stove. Bottom left: Philips Smokeless Stove, Made in Lesotho (Southern Africa), Cost: ~US$125. Bottom right: Gyapa Wood-Burning Stove. Made in Accra. Cost: ~US$15-25.