Doktor Doom Commercial Hi-Pressure Fumigator 400gHighest concentration of Pyrethrins in a Fogger in Canada – 0.4% with 2% PBO► One Spraying Kills Exposed Stages of Ticks, Fleas, Cockroaches, Ants, Spiders, Mosquitoes, Flies, Bed Bugs and Two-Spotted Spider Mites.► Can be used manually or valve can be locked in open position for continuous spray.