build
Run a Corsi-Rosenthal box for the smoke
An active fire upwind can flood a much larger area with smoke. A simple box-fan filter cuts indoor by 50–80% in a typical bedroom. See <a href="https://air.actsmall.org/">air.actsmall.org</a>.
ActSmall · Fire IRN
An active fire upwind can flood a much larger area with smoke. A simple box-fan filter cuts indoor by 50–80% in a typical bedroom. See <a href="https://air.actsmall.org/">air.actsmall.org</a>.