Kirby's disposable bags...
Devin (& others),
Micron Magic® was introduced by Kirby in 1993. It was one of the first major improvements in Kirby's disposable bags, since the single ply bags which began in 1979.
And further enhancements have taken place since.
In 1999, the Micron Magic® HEPA filtration [Outer layer was paper] bags were introduced. These were rated as H10 standards. ~~These are NOW discontinued.~~
In 2003, the Micron Magic® HEPA Allergen Reduction Filters (ARF) [Outer layer was now synthetic] [bags] were introduced. These were rated as H11 standards.
In August 2015, the Micron Magic® MicroAllergen Plus [An add'l layer was/is now added] were introduced. These are again, improved HEPA standards.
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This past Friday I received a flyer introducing ODOR FIGHTER filtration bags. They are still Micron Magic®, as they all have been since 1993; however, now with Charcoal Filtration. [A Charcoal layer has now been added]. These are geared towards homes with pets.
My first supply order of them should be here tomorrow (Friday).
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I hope this info helps clarify things.
If you (or anyone) have further questions about this or other Kirby questions, shoot me an email & I will provide you all of my contact info.
And, if anyone is after Kirby parts, keep me in mind next time as a source for your Genuine Kirby wants & needs. I'm sure I will be able to save you substantially.
Cheers & hagd/n all,
Bill
PS: Harley is correct, (see above). In fact, when Buffet (BH) purchased Scott & Fetzer, Kirby was the only division (of SF) he 'left alone' & did not make changes to. (So I understand.)
PPS: A little history...
Contrary to what other 'experts' say or have said; James Kirby, I believe, may have invented the FIRST disposable bag, with his patent applied for January 20th 1915, before Airway.
It was a disposable bag within a cloth bag.
For whatever reason(s), he never brought it to the Kirby/Vacuette/SF systems. I've been told he was a stickler for waste, & didn't like the idea of throwing 'them' away, when one could empty & re-use a permanent bag!?!?!
Just like he used water for filtration, in 1906; 30 years before Rexair/Rainbow! I believe water may have been used for filtration even earlier than that by someone else?!?!