Air intake contains surprising amounts of dirt and muck including pollen, skin debris, tire rubber from roads, and automotive emissions that must be filtered before reaching building coils and occupants.

factualpending

Speaker

Unidentified Speaker — Fundamentals of HVAC - Basics of HVAC [klggop60vlM]

Evidence Quote

This is just Pollen this is bits of skin. This is dirt. This is [29:16] You know where where cars drive along the roads and they give off all the co2 And the tires degrade and [let] rubber comes off this is all coming in this is all collected on here

Source

Fundamentals of HVAC - Basics of HVACThe Engineering Mindset
Created: 8/13/2026, 4:57:53 AM

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