The 2015 AHR Expo, set to take place in Chicago on January 26-28, will be the largest AHR Expo ever held. No other event in the HVACR universe generates these types of numbers: There will be more than 60,000 HVACR professionals filling the aisles looking for new products and services from 2,000+ exhibiting companies from around the world. This means more opportunity for you to generate leads and expand your business.