As well as size and capacity, shredders are classified according to the method they use; and the size and shape of the shreds they produce. 1  Strip-cut shredders use rotating knives to cut narrow strips as long as the original sheet of paper.
Thoroughly and regularly clean areas where you find adult fleas, flea larvae, and flea eggs. Vacuum floors, rugs, carpets, upholstered furniture, and crevices around baseboards and cabinets daily or every other day to remove flea eggs, larvae, and adults.
Follow the above procedure, except you should vacuum after 1 week. These powders work by drying out the fleas' habitat and dehydrating both the larvae and adults. Introduce the beneficial nematode Steinernema carpocapsa to your yard by using a spray available for purchase at your garden store or online.