Up to 12hr protection from mosquitoes midges amp biting insectsinsect repellent factor 4non aerosol pump spray with 50 deet and plant extracts for long lasting maximum protectionthe insect repellent factor174 is a quick and easy way to choose what repellent you need to protect yourself from mosquitoes midges and other biting insects the higher the irf174 the better the protection also available in sensitive skin irf2 natural irf3 and medium