The Pif Paf Mosquito Killer Refill provides 100% protection from mosquitoes, ensuring peaceful nights. Designed for use with an electric device, it effectively kills mosquitoes and flies, acting as a first line of defense against diseases like Dengue and Malaria. The refill lasts up to 30 nights, offering a convenient and powerful solution for mosquito control. Key Features 100% protection from mosquitoes Effective all night long Kills illness-causing insects Dual-mode for high and low-intensity settings Low electricity consumption Active Ingredient: Prallethrin or Transfluthrin. Carrier: Deodorized hydrocarbon solvent. Mat/Vaporizer Pad Material.Pif Paf (owned by Reckitt Benckiser) is a global brand of insect control products. This is a liquid refill for an electric mosquito diffuser.Insert the liquid refill unit into the electric diffuser plug. Plug into a power outlet. Ensure device is upright.WARNING: Use only in a well-ventilated area. Harmful if swallowed. Highly toxic to fish/aquatic life.