Cloth HEPA Hoover Type Y Bags

[wyaple]

From Crucial Vacuum are fantastic!

I would love to hear from others who have tried the "upgraded" Hoover Y Bags (cloth) for any of their Hoover products. For the last 3 years, I have only used genuine Hoover Y paper bags and I always noticed fine dust build up inside the bag chamber and around the side exhaust port in my Widepath Tempo. These cloth bags are made of the same material as the Kirby bags I get.

Per my best research here's what I've found about the paper versus cloth bags.
PAPER: 99.9% down to 5 Microns (Hoover's website)
CLOTH: 99.97% down to 0.1 Microns

So the filtration percentage doesn't seem all that much better (0.07%) but the particle size capture is massively better! Literally 50 times better. Geez!

When I examine the inside of the cloth bag the contents are now very similar to what my Kirby's pickup. Instead of letting quite a bit of fine dust through the paper, the cloth holds tight to what enters the bag.

I was very impressed with the Perfect bags for my Lux Olympia One I started using a year ago and I am equally impressed with the Crucial cloth bags. I checked airflow loss compared to the paper HEPA bag and I did lose about 5%--whoopdeedoo.

Bill

 

[s_matt37]

Genuine HEPA Y Bags

I have a WindTunnel Anniversary and only use Genuine HOOVER HEPA bags in it. Excellent filtration, bag compartment is completely spotless. Expensive, though! $10.00 for two isn't cheap!

 

[kirbysthebest]

I bought

a 15 pack of generic Y HEPA cloth bags from GreatVacs for $15.99 for my Hoover Windtunnel self-propelled.  


 


Very good value, and no dust visible in the bag chamber.

 

[suckolux]

I use them in my Legacy, I know they aren't quite as big, but the inside stays clean and the air flow at the hose, which is not a strong point is much improved.

 

[vac-o-matic]

I use the Envirocare cloth bags for whatever models I can, including my Windtunnels, and never a speck of dust in the bag chamber, and reasonably priced!

 

[mark40511]

I wonder why the airflow

would be more on your legacy, but less on his hoover?

 

[suckolux]

maybe due to it not plugging for along time?

 

[wyaple]

More precise anemometer measurements find that

There is no real airflow loss with either bag type. I received an GM8901 anemometer for Christmas and will be testing all my vacs extensively. I cleaned the vac seals and carefully inserted each bag to achieve best results. The Baird meter reading is there for comparison purposes. I repeated all tests three times to make sure I wasn't getting wonky numbers.

From the data, we see that this machine achieved 114 CFM both without a bag and using a new Crucial cloth HEPA bag. The Hoover Y paper bag showed a very slight 2 CFM (<2%) loss.

Hoover Tempo WidePath (Body, No Bag) = 4370 ft/min = 114 CFM = Baird 9.5
Hoover Tempo WidePath (Body, Hoover Y) = 4291 ft/min = 112 CFM = Baird 9.5
Hoover Tempo WidePath (Body, Crucial) = 4370 ft/min = 114 CFM = Baird 9.5

Oh, and I want to make an adjustment in my first post.

Per what's printed on the Hoover Y paper bag itself, the filtration is 99%, not 99.9%. So the revised specs would be:

Per my best research here's what I've found about the paper versus cloth bags.
PAPER: 99% down to 5 Microns (Hoover's website)
CLOTH: 99.97% down to 0.1 Microns

What a difference in filtration! Incidentally, I purchased 18 cloth bags for about $18, so 1 buck a bag.

Bill

 

[gottahaveahoove]

Great!

And besides, what's a micron or two among friends, lol.

 

[kirbysthebest]

Good information.

Were these test conducted with empty bags?


Typically air flow test are conducted in stages, empty, half full, full to line.  Of course this is also dependent on the type of "dirt" used for the test.  Talc will be more clogging that pet hair for example.


 


It would be interesting to see if suction drops off when subjected to contents.

 

[wyaple]

Yup, starting with empty bags

And yes, airflow will drop as the dirt level increases. Of course, how much airflow you lose will depend the type of dirt you vacuum up. I can say with limited bag testing that my dirt in a Kirby cloth bag drops the airflow 20-30% and in a Perfect cloth bag about 30-40% when the HEPA bag is half full.

Bill

 

[suckolux]

It seems to me that the paper bags do drop the air flow much faster, going by sound somewhat? But airflow does make a noise.