“ Sorry, I should have given a link.
https://synchronicityair.com/
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Slick technology. I like it.
I went with Medify Air MA12 units. (But the company has some issues.)
(Type ones, with the sensor, an autospeed mode, and a particle count
display, not the new, now more expensive lobotomized type 2 without
those features.)
It’s a 950 CADR HEPA 13 unit, with dual large thick medical grade hospital HEPA 13 filters.
Ours got us through the California and Nevada Bad air quality days nicely.
(300-400+ AGI measured by my weather station on many of those days.)
(Could hardly see the end of the court.)
They kept our indoor particle counts in the blue...
~Easy