Sales of air and fluid filters in the US will expand 3.8 percent annually to $9.7 billion in 2020. Advances will be fueled by a positive economic outlook and increasing consumer attention to domestic indoor air quality and tap water purity. The utilities and consumer segments will be the fastest growing markets. Air filters will slightly outpace the dominant fluid filters segment.This study analyzes the $8.1 billion US filter industry. It presents historical demand data (2005, 2010 and 2015) and forecasts (2020 and 2025) by filtration media (e.g., fabric, paper), product (e.g., consumer water filters, fluid power filters, panel and pocket air filters, fabric air pollution filters, cartridge filters, electrostatic air filters, air washer filters), and market (e.g., utilities, consumer, industrial).The study also considers market environment factors, details industry structure, evaluates company market share, and profiles 32 industry players, including CLARCOR.