In a commercial cleaning setting such as a church, school or office there are wide open areas and other moving trash cans and computer desk chairs, not much gets moved. You can do pretty much everything standing up. So a backpack machine works very well for those settings.
When cleaning a home, it is tighter quartered than a commercial building. You often find yourself backed up against a wall or tight doorway and don't want anything bulky on your back to bump into things. You have to stop often to a move kids toy, pet food bowls, the ottoman for the rocking chair, etc. You stoop down low to push the power nozzle or a bare floor brush, depending on flooring type, underneath a bed or low lying furniture such as a night stand. You get on your hands and knees and switch to an upholstery nozzle for the knitted bathroom mats. Then there is the couch to vacuum that requires bending over and the coffee table with all the fancy decorations is close proximity to the couch. A back pack vacuum for this application just doesn't work good. You're not gonna walk around the house tripping over a dragging wand with a vacuum on your back while trying to put chairs and totes full of kids toys or pet beds back into place before vacuuming another section of a room. It just doesn't make sense. The other alternative is bend down to resettle a vacuum on and off your back each time you move a few things???? A users back would be shot after a single week of cleaning homes and the whole next week would be spent at a chiropractor and physical therapy!!
A Sanitaire SC886 doesn't have the filtration a house deserves with the shake out bag. A SC888 with ST HEPA bag is a much better choice but you're still only limited to carpets with that. For small door mats that's not even a good vacuum because they tend to eat the rug rather than clean it well. A Kenmore canister or similar power nozzle vacuum with rug guards on the nozzle to help restrict the size of a rug from being eaten by a vacuum, a height adjuster and a suction relief valve is perfect for various throw rugs which is common in households of the current times.
Also a power nozzle makes quick work of carpeted steps and all one has to do is zip over the edges and along the back of the step with an onboard crevice tool! I purposely mean a full sized power nozzle on the steps too, not the PowerMate Jr. Time is money and the game is efficiency. The largest tool but the tool that makes sense for the application. A 16" bare floor nozzle is great for schools, for homes a 10-11" bare floor brush still allows for decent manuevering behind toilets and other other appliances depending on the setup of a customers home!
Maybe this is a hint to vacuum manufacturers that a power nozzle canister of this style is desirable in a commercial warranted and manufactured machine![this post was last edited: 5/30/2016-16:05]