The - CAMFIL FARR - Basics of Air Filter Technology discusses the principles of filtration, filter testing, indoor air quality (IAQ), ASHRAE, ISO, and EN industry standards, life cycle cost, and more.

PALL CORPORATION's Principles of Filtration are more oriented on liquid and membrane filter applications. Some topics are - Depth vs. Membrane Filtration - Chemical Compatibility - Hydrophilic vs. Hydrophobic - Ratings - Binding - Extractables - Thermal Stability.

These Basics of Filtration by GOPANI take a closer look to filter system design, flow rate and pressure drop, viscosity, parallel and serial filtration, gasket, housing and filter material limitations. The basic physical effects are covered, too.