Aug 29, 2019 - 03:42 AM
The pyrethrin fogger contains pyrethrins. Pyrethrins are a blend of different "pyrethrum" oils derived from the African and Australian Chrysanthemum flowers. Natural pyrethrins such as this typically last about 15 minutes and have no residual effect on insects. After 15 minutes, pyrethrins will completely dissapate.
Hope this helps.