Ian Cull, CIH, PE is the Founder and Chief Science Officer of Indoor Science. He is a highly commended speaker and author who has trained over 10,000 professionals throughout the world to deepen their understanding of indoor air quality (IAQ). Mr. Cull is an internationally recognized consultant with experience handling complex IAQ problems in all building types and has been retained as an expert witness in several federal court cases related to mold and IAQ. He has served as the technical director, vice president and board member of the Indoor Air Quality Association (IAQA). Mr. Cull produces the IAQ Research of the Month newsletter, which has 10,000 subscribers.