A47 -- Air Cleaners for Gaseous Contaminants (I-P)

This chapter covers design procedures for gaseous contaminant air-cleaning systems for occupied spaces only. Procedures discussed are appropriate to address odors and gaseous irritants. Removal of contaminants for the express purpose of protecting building occupants (whether against deliberate attack or industrial accidents) or to protect artifacts (such as in museums) requires application of the same design principles, but applied more rigorously and with great emphasis on having specific design and performance data, providing redundancy, and added engineering safety factors. Design for protection is not a focus of this chapter, although published design guidance is included and referenced; for more detail, see Chapter 61. Aspects of air-cleaning design for museums, libraries, and archives are included in Chapter 24, and removal of gaseous contaminants from industrial processes and stack gases is covered in Chapter 30 of the 2020 ASHRAE Handbook—HVAC Systems and Equipment. Terminology Gaseous Contaminants Problem Assessment Contaminant Reduction Strategies Contaminant Removal by Ventilation Air Cleaning Equipment Air Cleaner System Design Safety Installation, Start-Up, and Commissioning Operation and Maintenance Environmental Influences on Air Cleaners Testing Media, Equipment, and Systems