A family company. Kills on contact. No lingering chemical odor. Defense System: Attack bugs (Use to kill ants, roaches and other listed bugs on contact. Avoid spraying near baits to make sure bugs can bring the bait back to where they hide). Control bugs (Use a Raid Ant or Roach Bait product to kill ants or roaches where they hide. For heavy infestations, first use a Raid Fogger or fumigator product and then place baits to provide ongoing control. Read the label to find the right product for your bug problem). Prevent bugs (Use a Raid Max Bugs Barrier product to keep ants, roaches and other listed bugs out. Or spray this product along baseboards, inside cracks, and behind appliances. Do not spray surfaces with more than one pest control product. Read the label to find the right product for you bug problem). A family company since 1886. - Fisk Johnson. Defense System helps you work smarter, not harder, to fight bugs. Kills: Ants, roaches, crickets, earwigs, household spider, multi-colored Asian lady beetles, silver fish, stinkbugs. Use This Product To: Attack Bugs: Kill bugs on contact. Use Other Raid Products To: Control Bugs: Kill bugs at the source. Use Other Raid Products to: Control Bugs: Kill bugs at the source. Prevent Bugs: Keep bugs out. Raid Ant & Roach Killers 26 kills roaches in two ways: 1) It kills bugs fast - on contact and 2) It keeps on killing with residual action indoors even after you spray, for up to 4 weeks. No CFCs: Contains no CFCs or other ozone depleting substances. Federal regulations prohibit CFC propellants in aerosols.