pit latrine ventilated improved pit latrine A ventilated improved pit latrine is a pit latrine which includes a vent pipe fitted to the pit with a flyscreen covering the pipe's outlet. Air currents moving across the outlet of the vent pipe create a vaccum which draws odors out of the latrine's superstructure. ORCID:0000-0002-4366-3088 VIP latrine ventilated pit latrine