Others say...

"The Real McCoy"
These are the only way to go in the Panasonic vacuum. You can tell they really work because they trap even the odors from vacuuming pet hair and I no longer see dust floating in the air on sunny mornings while running the machine.

"Confusion"
I did not receive this item because of shipping confusion. Only overnight and 2nd day shipping is sent to the home address. Regular shipping is apparently sent to mailing address which for me is a different post office.

"Costs as much for shipping as for the bags!"
I was about to order 2 bags of these, and then saw that my total was over $12 because the shipping is >$3 for each pack of bags. You have got to be kidding me. I'll be seeking another source.

"vacuum bags"
Best price around for excellent micro-filtration bags. Cannot beat ease of purchasing.

"Genuine Panasonic U-6 Bags, Best Price on the Web"
Genuine Panasonic U-6 vacuum bags from Amazon.com, easily the best price on the web, especially with a Super Saver shipping order. I don't know how they make money on these, as these shipped separately from my order from a different location via UPS. The shipping alone must've cost as much as the bags themselves, much less any profit by having the lowest price on the web.

If you have a Panasonic vac which takes U6 bags, it is important to get genuine Panasonic U6 bags, not some knock-off "U" size. The bags are an integral part of the Panasonic cleaning system, and U6's are much thicker than standard bags, offering their increased filtering ability. "U" is just a size, but the "6" (I deduce) refers to its thickness. So a Panasonic U3 bag or a knock-off "U-anything" bag will fit in a U6 vac, but you'll be doing yourself a disservice. U6-type vacs are more powerful; they need to be to pull the air through the bag (just try to blow air through a new one yourself).

There are other 3rd-party Amazon sellers selling the same bags on Amazon, but this is the best place to buy them (super saver qualifier, lowest price).

Another reason buying genuine U6 bags is important is because the "6-layer HEPA air filter" feature of Panasonic vacuums is bogus. I have owned two generations of Panasonic vacs (the newer "darth vader" type plus the more standard-looking one before it), and Panasonic's idea of "HEPA" filtering it laughable at best, and criminal at worst. With my older one, barely any air even passed through the supposed "HEPA filter" (almost all air actually passing through the cord reel hole). With the newer "Darth Vader" model, the filtrete "HEPA" filter cartridge had no real seal, so I had to make one with duct tape, but even then there was no reduction in "vacuum smell" whatsoever from the filter cartridge. What I am saying is that the bag does all the air filtering. I still like Panasonic U6-type vacs because they DO reduce the "vacuum smell" by filtering the air better, but this is ONLY due to the U6 bag and the suction/brushing behind it, NOT having anything to do with the bogus "HEPA" filters supposedly placed in the exhaust flow.

Any 3rd-party bag which displays itself as compatible with U3, even the "anti-allergen" ones, is intrinsically inferior to the genuine Panasonic U6, because the U6 is so much thicker that it can't be used in the (weaker) U3 vacs at all.

So stick with genuine Panasonic Vacuum bags. With these prices, replace your bags early and often; that's the best way to achieve clean air--not from some HEPA filter idea. Keep these in mind when you need a small item to bump you over the free Super Saver shipping minimum purchase.