Virbac Knockout E.S. Area Treatment Carpet Spray, 16-Ounce Can prevent flea infestations from developing for up to 7 months One 16 oz. can covers 2,100 square feet Reaches fleas hidden in carpets, rugs, drapes, upholstery, pet bedding and floor cracks No mess; Leaves no unpleasant odor or sticky mess and, when used as directed, does not stain furnishings