Guaranteed! To work, or your money back (for terms of guarantee, see back. If you are not satisfied with this product for any reason, send your written request for a refund to the address below, together with the dated store recipe showing the price you paid. Please allow 6-8 weeks for processing.). Kills on contact. Kills up to 12 weeks (On non-porous surfaces; excluding Oriental cockroaches.). Reduces 99.9% of germs (Staphylococcus aureus and enterobacter aerogenes on hard, non-porous, non-food-contact surfaces. No residual sanitizer action. Not for primary use as a sanitizer.) insects may leave behind. Water based. Kills cockroaches (On non-porous surfaces; excluding Oriental cockroaches), ants (excluding fire ants and pharaoh ants), carpenter ants, crickets, firebrats, fleas, silverfish and spiders (except Brown Recluse spiders). Questions or comments? Call 1-800-917-5431 or visit our website at www.hotshot.com. Contains no CFCS or other ozone depleting substances. Federal regulations prohibit CFC propellants in aerosols.