The easy to use Powr-Flite PF90 is built commercial tough with an all metal handle, base plate and brush roll in a heavy-duty housing. The performance of the powerful double ball-bearing motor provides the suction power needed for commercial cleaning without the expense of two motors. The self-adjusting height goes from the new frieze carpeting to commercial grade and even hard floors with ease. The PF90 will also lay completely flat to reach under furniture and other obstructions. Optional tools are also available to add the convenience of performing every type of vacuuming job! The PF90 uses the Smart Choice vacuum bags featuring the Allerest liner that captures particles up to 0.1 micron like pollen, spores, bacteria, dust mites and allergens. The bags are also treated with Bioclear to inhibit the growth of germs, bacteria, mold and mildew. The Smart Choice bags provided 6 times better filtration than ordinary bags!