Shark Apex: https://amzn.to/2AgkBeY
Dyson V10: https://amzn.to/2JZQS9t
Dyson V8: https://amzn.to/2LEviwh
Hoover Anniversary (bagged): https://amzn.to/2Lur0Zj
Kirby Avalir 2 (bagged): https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5337945138&mpre=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_from%3DR40%26_trksid%3Dp2380057.m570.l1313.TR0.TRC2.A0.H0.XKirby%2BAvalir%2B2.TRS5%26_nkw%3DKirby%2BAvalir%2B2%26_sacat%3D0
Shark NV352: https://amzn.to/2JZtBoe
Skip to Tests: 1:25
Performance Reviews Channel on Youtube: https://www.youtube.com/channel/UC2tJ9G_l5ROSSizfuN0Y5hg
Other recommendations (coming soon)
Low Price Range
Bagless: Shark NV352 (see above video): https://amzn.to/2JZtBoe
Bagged: Hoover Anniversary (bagged): https://amzn.to/2Lur0Zj
Mid Price Range
Bagged: Kenmore Elite: https://amzn.to/2NO2BKN
Bagless: Shark Apex https://amzn.to/2AgkBeY
High Price Range.
Miele Cat and Dog: https://amzn.to/2NLvdnY
Sebo Felix 1: https://amzn.to/2AauFGa
Hepa just stands for High Efficiency Particulate Air. In the US Legally to call it a HEPA filter it must filter particle sizes of .3 microns or more.
To give you an idea, the size a human skin cell is 30 microns, Dust mite fecal matter, sorry, is 10 microns Most allergens and bacteria are only about 1-3 microns. So A Hepa filter at 0.3 microns should be able to filter all of that and more.
The problem is that the vast majority of vacuums are either not sealed or can easily become leaky causing particles of all sizes fill up the room you are vacuuming, which is not just a problem for allergy and asthma sufferers it bad for everybody.
Our tests involved a liquid based fog machine, the particles it emits are 1-5 micons in size. So if we see any fog coming from the vacuum, it either means the vacuum isnt sealed or the hepa filter is faulty or both.
I checked and serviced every vacuum before the tests, and if they failed they were serviced again and retested to make sure, but Im sure there is a margin for error with these tests so take them with a grain of salt.
Most cheap vacuums don’t claim to have a HEPA filter or a sealed system and they preform as expected.
Some like this very inexpensive Hoover have a HEPA Filter, but not a sealed system and in that case the hepa filter is doing very little good as you can see.
Then there are vacuums that truly have sealed systems and HEPA filters but because of various circumstances they fail over time.
Take for example this new Shark NV352 it passed the test perfectly. But when we tested one of old NV352 we used to use in our cleaning business. It failed, despite have been serviced including getting a new hepa filter.
Thanks to performance reviews here out Youtube for pointing out
that the reason that some Sharks fail over time is because the hepa filter casing is subjected to a lot of heat and over time it slightly warps the plastic hepa filter housing causing very small gaps to in the housing to form.
I did find that this could be fixed but putting duct tape around the hepa filter lid, so at least its easily remedied.
That being said when I tested the new Shark Apex which claims to have better filtration than all earlier models, it passed with flying colors despite me having used it for my professional house cleaning vacuum on a regular basis. Im not sure if they fixed the issue on the apex or it just takes more use for the effect to occur.
The next category is vacuums that claim to have whole machine HEPA Filtration, and don’t seem to.
Before I bad mouth Dyson slightly I want to point out that both the Cordless V8 and V10 did perfectly on this test. They are both very lightly used vacuums but there seems to be less points of failure for them and I would suspect they would remain sealed for a long time, if not for the life of the vacuum but Im not sure.
The Dyson Ball animal 2 claims to have whole machine HEPA filtration and with our very lightly used unit we found it was leaking pretty bad on the fog test, just to be sure I tested this with a brand new Dyson Ball Animal 2 and it still failed, not as badly but it there was still quite a bit of leakage.
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