Precor Plus Fogger 3pc Target Pest = fleas Ideal for large-area treatment - one fogger treats 375 sq. feet. (Example: Room size 15 ft. x 25 ft. with 8 ft. ceiling. Approx 3,000 cu. ft.) Also well-suited to cluttered areas like basements and garages. Contains Precor IGR to prevent flea reinfestations for up to seven months, plus Permethrin for quick knockdown of adult fleas. Water-based, no-odor formulation won't stain or leave an unsightly residue. For best results vacuum carpets before use.