The First Response Bed Bug Trap is designed as a permanent reusable monitoring device. It has a unique combination of heat, COÂ² and pheromones to attract and capture all stages of bed bugs. It comes with the initial set of lures and can then be reused with the refill kit. Each lure set lasts ten days. Bed bugs are invasive and are being found any place that people go; hotels, houses, apartments, condominiums, airplanes and even department stores and libraries. This Bed Bug refill kit contains all the necessary components to re-bait the BioCare Bed Bug Trap. Each package contains a new screen, sticky pad, pheromone and COÂ² mix. Lure set will work for ten days before needing to be replaced.