Allow me to elaborate on my safety tip above :
Here in the bay area these days there is a high inversion of forest fire smoke that sometimes stays above 10,000 feet
you may not necessarily smell the smoke but, the heavy nano particulates re constituted in the air due to the fires do
rain down they get blown around in the breeze but gravity eventually wins , and our lungs loose,
most matter particles have no odor
and can be anything from benign to cancerous.
Serious stuff that needs to be said..
SM
---
Recent Examples of particulate from the Web
The main worry is with the tiniest motes — known as PM 2.5, particulate matter smaller than 2.5 microns across.
—
Sara Morrison, USA TODAY, "In developing world, an expensive push to reduce cooking fire deaths falls short," 13 July 2018
By mid-century, scientists forecast an additional 13,000 human deaths annually caused by
high levels of fine particulate matter in the summer and another 3,000 caused by ozone in the Eastern United States.
—
—