Refers to the preliminary draft of ASHRAE Standard 62.2P, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings, which defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality. It applies to spaces intended for human occupancy within single-family houses and low-rise multifamily structures, and it generally excludes institutional buildings. Supplies a series of questions and answers to explain why the standard is needed. Covers what is in the draft and why, and how the draft would affect residential buildings. Points out that very few of the requirements in the proposed standard are not related directly to requirements in relevant codes, standards or guidelines currently in use.