From a health perspective, reducing exposure to indoor air pollution (IAP) is and should be the primary objective of household energy interventions. Measuring IAP levels is particularly important given the difficulty in assessing health outcomes directly. Thus reductions in pollution levels can be assessed as a proxy for likely reductions in health outcomes. The Indoor Air Pollution Monitoring module consists of three presentations as well as extensive hands-on training to launch, place and collect the instruments and to download and process the resulting data. By the end of the module, participants should understand the basics of indoor air pollution, be aware of different measurement options, and be familiar with the field work,.