When wildfire smoke pushes the outdoor AQI to 300, stay-indoors is half an answer. SmokeShield computes the PM2.5 you would actually breathe inside your specific home, and what would lower it most per dollar.
pm25 mass-balance indoor-air-quality environmental-health hepa-filter air-filtration merv wildfire-smoke
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Updated
Jun 12, 2026 - Python