We have two houses on our rural property and I just bought a second Shark vacuum, the one listed above for our old farm house which we have been making into a wonderful guest house.  I am allergic to dust and this vacuum is really amazing!  It vacuums up all the dust and keeps it in the vacuum!!  No matter how often or how thoroughly I use it it always picks up more dust, pet hairs and dirt !!  I highly and enthusiastically recommend this wonderful vacuum cleaner!!