Environmental Protection Agency
Millions of American homes, including dwelling units in multifamily residential buildings, will be retrofitted in the coming years to renovate their existing structure, improve energy efficiency, improve long-term durability and ensure good indoor air quality (IAQ). Some upgrade activities, however, might negatively affect IAQ if the appropriate building assessment is not made before work begins and issues that can compromise IAQ are not identified and properly addressed. The U.S. Environmental Protection Agency (EPA) developed this document, Energy Savings Plus Health: Indoor Air Quality Guidelines for Multifamily Building Upgrades, to provide practical guidance to ensure healthy indoor environments during multifamily residential building upgrades, retrofits and renovations (including energy upgrades), and to maintain the building upgrades after dwelling units are reoccupied.