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Minimum IAQ performance depends on delivering clean outdoor air to occupied zones. Intakes should be located well away from contamination sources—loading docks, idling areas, generators, cooling towers—and elevated above grade to reduce entrainment of pollutants and dust. Exhaust and combustion discharges must be separated from intakes by distance and orientation per good practice to prevent short-circuiting. Proper filtration (e.g., MERV levels appropriate to climate and use) and verified pressure relationships (negative in pollutant-generating rooms, neutral/positive in occupied areas) further protect air quality. Locating intakes near docks risks direct pollutant ingestion; opening windows near sources spreads contaminants and undermines control; and “add-on” ionization technologies do not replace source control and verified ventilation. Thoughtful intake siting plus filtration and pressure control aligns with LEED’s health-first approach and eases commissioning and compliance.