Repels mosquitoes up to 10 hours. Sweat-resistant. Repels mosquitoes that may transmit the zika, west nile & chikungunya viruses. www.cutterinsectrepellent.com. Questions of comments? Call 1-800-767-9927 or visit our website at www.cutterinsectrepellent.com. Contains no CFCs or other ozone depleting substances. Federal regulations prohibit CFC propellants in aerosols.