[PLUG-TALK] Anyone have 21x21 inch MERV15 furnace filters?

[Keith Lofstrom]

The air may be dangerous for a while.  It is 314ppm P2.5
in Beaverton as I write this, and 500ppm in east Portland. 

I have some spare 21 inch box fans, which I can convert to
room air cleaners with 21x21 MERV15 (or better) furnace
filters and duct tape.  Our home HVAC system already has
a good filter, so this will be for others.

Anyone have spare furnace filters of that size and grade?

Some MERV12 filters will be delivered next week (I hope),
the best and soonest I could find online.  I hope to get
better, sooner, and help some fragile neighbors NOW.  

Keith

-- 
Keith Lofstrom          keithl at keithl.com