Ortho Home Defense Insect Killer for Indoor & Perimeter Refill2 kills common household bugs such as ants, beetles, centipedes, cockroaches, crickets, fleas, flies, millipedes, mosquitoes, moths, spiders, stink bugs, ticks, termites, periodical cicadas and more (as listed). This insect killer creates a bug barrier for up to 12 months protection against ants, roaches and spiders indoors on non-porous surfaces. In addition, the Invisi-Shield Technology formula gives off no fumes, dries clear and dries fast. Use this pest control product anytime as a preventative treatment or after you see evidence of insect activity for long lasting-control. Apply indoors in kitchens and bathrooms or around doors and windows, and outdoors to the foundation perimeters, patios, decks, garages and wherever insects are a recurring problem. For indoor surfaces, hold sprayer 12 inches from surface being sprayed and apply a 4-inch wide band, or use a 12-inch wide band when applying to a home perimeter. Area should be sprayed until slightly wet without soaking. People and pets may re-enter the treated area once sprays have dried. Trust Ortho to keep bugs out of your home.