How Long Does Sawyer Permethrin Last?
How Long Does Sawyer Permethrin Last? How long does Permethrin last? At the concentration level delivered in the aerosol, non-aerosol pump sprays and soak systems (all at 0.5% Permethrin), an application lasts for six weeks and through six washings. Permethrin breaks down through exposure to air (oxygen) and sunlight (ultraviolet light). Can you spray Sawyer