The media of most HVAC MERV filters either don’t effectively capture particles in wildfire smoke that are below 0.3 microns in diameter.

As buildings have become tighter with improved building envelope systems and inoperable windows to minimize energy use, IAQ and IEQ have become primary considerations for professional engineers and architects.

IAQ must be prioritized from both a financial and moral perspective.

Owners who reactively implement system changes without regard for secondary consequences will inherit long-lasting cost and performance impacts.