A66 -- In-Room Air Cleaners (I-P)

This chapter includes guidance on the types of IRACs available in the marketplace, determining the appropriate size of unit required to deal with a given problem, locating the IRAC to obtain the best performance, and carrying out the maintenance necessary to ensure continued good performance. A number of organizations have issued (or are in the process of publishing) methods for assessing the performance of IRACs, and these will also be discussed. This chapter can be considered complementary to Chapter 47 Air Cleaners for Gaseous Contaminants in this volume and Chapter 29 in the 2020 ASHRAE Handbook—HVAC Systems and Equipment, both of which cover duct-mounted air cleaners. Chapter 62 in this volume includes dealing with bioaerosols in ducts. Chapter 11 in the 2021 ASHRAE Handbook—Fundamentals addresses particulate, gaseous and biological contaminants. Terminology Contaminants to Address Problem Assessment Air Cleaning Technologies Equipment Sizing, Selection, and Installation Operation and Maintenance Environmental Issues Performance Testing