We're going to start having a couple other people in at the office, fortunately we understand ventilation, so ~$300 later we have these little white soldiers ready for duty calculated for 6ACH at level 2 setting.
Combined with box fan in window doing nearly another 6ACH ≈ 12ACH. Seriously though, mitigation measures are so cheap, I can't believe everyone isn't doing them.

These chosen over CR boxes b/c quieter and smaller, and at ~$60 each not really much more expensive.

Also having multiple boxes helps address near-field transmission and we can zone.

So, now that air outside is crap for the entire coast, what to do about it? A thread.

Option A: Try to find a HEPA filter that has enough airflow to handle your space. Most are out of stock, good luck.

Option B: Turn any fan into a filter, this is a trick first used in Beijing Folks over there with chronically bad air have tested this setup and it rivals expensive filters, but with $50-100/yr filter costs vs $150-400/yr, and using a ~$30-50 fan instead of $200+ HEPA proprietary setup.

Testing:

https://twitter.com/SmartAirFilters/status/1034258705099845634?s=20

It appears someone in our neighbourhood has nothing better to do than to litter power poles with anti rental tower propaganda, so I wanted to see for myself how it would affect me, since I'm a neighbour after all, and I'm told my voice counts more than, say, someone from WVan 1/x So, I took the elevations posted online for the Rezoning and and made a quick and dirty (but accurate) 3d model, then loaded that into Google Earth to see what the views would be of the thing. 2/x