Understanding Air Flow | Ask This Old House
Impact of Airflow on Refrigerant Measurements and Performance
Calculating Air Flow for Air Handling Units
Air Flow Diagnostics w/ Joseph C Henderson
Quick Tip: Which way does the airflow arrow point on my filter?
How does air flow work in a Cleanroom?
The Proper Way to Balance the Air Flow in your Home
Air Flow Measurement for HVAC Systems
Condenser set up airflow measurements wiring, failure points. 
Static Pressure and Manometer Basics
Air flow visualization
Airflow CFM Measured with a Hot Wire Anemometer!
Anemometer + Flow Hood: Discovering a Grille's K-Factor for HVAC Airflow Testing
How to determine the Air Flow through an A/C Unit
Laminar Air Flow Unit Operation
HVAC AIR FLOW CALCULATIONS
Furnace air flow & BTU's using static pressure
How to use Static Pressure to Measure and Set Air Flow
How to Increase Air Flow in Hvac with Inline Air Motor - Add more Hvac air flow into your house
CFM & Air Flow