Pretty sure that 1-12 minute time is with what I call the "Big Green Machine" - the Pari Vios - it's a noisy beastie, but reliable and effective. Pretty much the only one Medicare, Medicaid and most insurance pays for - under $50 at Walgreens and from most Med suppliers. I still keep mine as my backup - have gone through 4-5 smaller, handier ones in lest time than one of these guys lasts. There's a good reason why they use it in clinics and Urgent Care settings.
Sue

Yes, Sue’s suggestion of the Pari Vios “green machine” has been really worth it . My insurance (blue cross) did not cover. But well worth it.