RAID 300ML (WATER BASE) is an active formula that provides a fast killing power against flying and crawling insects found in and around the house. In seconds, it kills Cockroaches, mosquitoes and flies without leaving odour. To Use: Close doors and windows. Spray at every angle of the house or office. Then leave for 15 minutes for it to do its work. Don't stay in after spraying, to avoid your swallowing chemical airs. It kills continuously for 5 hours after spraying.