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The Dyson DC26 Multi-Floor City Vacuum Cleaner is the smallest canister vacuum Dyson manufacture and it is indeed small.  So much so that the body of the vacuum will fit on a letter sized sheet of paper.  It is also powerful (especially for its size) and, as one would expect rather light.  Consumer ratings for the Dyson DC26 are very good and it has most of the features of the larger Dyson canisters, however due to its size it is probably best suited for vacuuming smaller areas.  [REF Dyson Vacuum Reviews]

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The Dyson Digital Slim is both a handheld and a stick vacuum.  It is driven by a powerful digital motor and comes with a floor tool capable of cleaning both carpet and bare floors.  A long aluminum wand also helps this unit clean from the floor to the ceiling effectively.  It uses lithium ion batteries for fast recharging and fade-free power.  Owners are pleased with the vacuum’s strong suction and build quality but feel it is quite costly and that it falls short in terms of battery power duration.  [REF Dyson Vacuum Reviews]

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This machine seems to have all the key vacuum cleaner features as well as very strong suction.  It is also not as expensive as some of the other Dyson uprights, however many consumers love this machine or hate it.  It does not get the very consistent high ratings of the Dyson DC25 Animal for example.   Owners are pleased with the powerful suction, long cord and large dirt canister however there are numerous comments regarding the less-than-stellar wand design and the noise generated when vacuuming on short carpet.  [REF Dyson Vacuum Reviews 2011]

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Consumer ratings for the Dyson DC23 TurbineHead Canister Vacuum are good -  not stellar - but typically greater than 4 stars out of 5.  For a Dyson it is not too pricey (depending on where you purchase) and it is said to have strong suction, work well on bare floors & rugs, and to be aesthetically pleasing (a lot of folks mention this).   On the other hand it is not as effective as the Dyson DC23 Motorhead on carpet due to its air driven brushbar.  [REF Dyson Vacuum Reviews 2010]

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The Dyson DC28 Animal is another Dyson machine made for households with pets.  On average it gets very good consumer ratings.  There are occasional grumblings – mostly related to the machines weight, but consumers are generally thrilled with this unit’s powerful suction and ability to remove pet hair from almost all surfaces.  This vacuum does not evoke many middle of the road reviews.  Most love it but some don’t.  [REF Dyson Vacuum Reviews 2010]

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The Dyson DC17 Animal gets good customer ratings – and there are many ratings available as this is a popular machine.  Consumer comments indicate that it does indeed work very well on removing pet hair from most surfaces.  It can be a bit heavy for some folks however. [REF Dyson Vacuum Cleaner Reviews 2010]

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The Dyson DC31 Handheld vacuum is widely available but consumer reviews and ratings at this time are sparse.  Having said that, those that can be found are largely favorable.  It seems the DC31 is an improvement over the DC16, Dyson's first handheld attempt.  [REF Dyson Vacuum Cleaner Reviews 2010]

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Many Dyson aficionados who have had great experiences with Dyson uprights have jumped at the opportunity to own a Dyson handheld - but consumer reviews and ratings for the Dyson DC16 Root 6 Handheld have been mixed.   It has strong suction, is low maintenance and comes with good attachments, but many consumers are unhappy with the limited battery life. [REF Dyson Vacuum Cleaner Reviews 2009]

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The Dyson DC23 Motorhead vacuum cleaner is not the most popular Dyson and there is little written about this particular machine.  However the few consumer reviews available do give it good ratings.  This is a bagless, canister vacuum with tremendous power and like most Dysons is fairly expensive.  [REF Dyson Vacuum Cleaner Reviews 2009]