Describe VIP-Latrine - Ventilated Improved Pit Latrine here.
A pit latrine with a black pipe (vent pipe fitted to the pit, and a screen (flyscreen) at the top outlet of the pipe. VIP latrines are an improvement to overcome the disadvantage of simple pit latrines, i.e. fly and mosquito nuisance and unpleasant odours. The smell is carried upwards by the chimney effect and flies are prevented from leaving the pit and spreading disease.