Shaping Tomorrow's Built Environment Today

Standards 62.1 & 62.2

Share This

The Standards for Ventilation and Indoor Air Quality

ANSI/ASHRAE Standards 62.1 and 62.2 are the recognized standards for ventilation system design and acceptable indoor air quality (IAQ). Expanded and revised for 2019, both standards specify minimum ventilation rates and other measures in order to minimize adverse health effects for occupants.


ANSI/ASHRAE Standard 62.1-2019 
Ventilation for Acceptable Indoor Air Quality 

62-1-2016.jpg

First published in 1973 as Standard 62, Standard 62.1 should be used to guide the improvement of IAQ in existing buildings. Standard 62.1 outlines minimum ventilation rates and other measures intended to provide IAQ that is acceptable to human occupants and that minimize adverse health effects.

Standard 62.1 has been fully revised for the first time since 2004 to include three procedures for ventilation design: the IAQ Procedure, the Ventilation Rate Procedure, and the Natural Ventilation Procedure. 62.2 New technology and the latest research ensure that the information in the standard is means of achieving this goal have evolved.

Significant updates to the 2019 edition include the following:

  • The scope is changed to remove commentary and to more specifically identify occupancies previously not covered.
  • Informative tables of ventilation rates per unit area are included for checking existing buildings and design of new buildings.
  • The Ventilation Rate Procedure is modified with a new simplified version for determining Ev and a more robust option for determining values of Ez.
  • The Natural Ventilation Procedure is significantly modified to provide a more accurate calculation methodology and also define the process for designing an engineered system.
  • Natural ventilation now requires considering the quality of the outdoor air and interaction of the outdoor air with mechanically cooled spaces.
  • Air-cleaning devices that generate ozone are prohibited.
  • Humidity control requirements are now expressed as dew point and not as relative humidity.
  • The standard now defers to ANSI Z9.5 on ventilation for laboratories handling hazardous materials.
  • Patient care spaces in the scope of ASHRAE/ASHE Standard 170 now follow the requirements of Standard 170; ancillary spaces not previously classified have been added.

Purchase


Superseded Editions of 62.1

Looking for previous revisions?
ASHRAE offers superseded editions of Standard 62.1 and User's Manuals in the ASHRAE Bookstore. Find previous editions in the 'Document History' section of the 62.1-2019 product page. 

BROWSE NOW


ANSI/ASHRAE Standard 62.2-2019
Ventilation and Acceptable Indoor Air Quality in Residential Buildings

62-2-2016.jpg

Standard 62.2 has been updated with a new compliance path that gives credit for particle filtration, distinguishes between balanced and unbalanced ventilation system interactions with natural infiltration, requires compartmentalization limits for new multifamily dwellings, and allows for singlepoint envelope leakage test results to be used when calculating infiltration credit.

This 2019 edition incorporates the contents of 16 addenda into the 2016 edition. For brief
descriptions of these addenda, refer to Informative Appendix E. Major changes since the 2019
edition include adding a compliance path that gives credit for particle filtration, distinguishing
between balanced and unbalanced ventilation system interactions with natural infiltration,
requiring compartmentalization limits for new multifamily dwellings, and allowing for singlepoint
envelope leakage test results to be used when calculating infiltration credit.

The PDF download of Standard 62.2, in addition to offering immediate access to the content, presents the climate zone map in color for enhanced readability.

Purchase


Related Courses

Air-to-Air Energy Recovery Applications: Best Practices

Air-to-Air Energy Recovery Fundamentals

Air-to-Air Heat Recovery Fundamentals and Applications (MENA)

Application of Standard 62.1-2010: Multiple Spaces Equations and Spreadsheets

Application of Standard 62.1-2013: Multiple Spaces Equations and Spreadsheets

Basics of High-Performance Building Design

Complying with the Requirements of Standard 62.1-2016

Designing for IAQ: Complying with Standard 62.1 (MENA)

Energy Modeling Best Practices and Applications

Fundamental Requirements of Standard 62.1-2010

Fundamental Requirements of Standard 62.1-2013

Fundamental Requirements of Standard 62.1-2016

Operations & Maintenance of High-Performance Buildings – 6 hours

Optimizing Indoor Environment: Increasing Building Value – 6 hours


Indoor Air Quality Guide

undefined

ASHRAE's Indoor Air Quality Guide: Best Practices for Design, Construction and Commissioning is designed for  architects, design engineers, contractors, commissioning agents, and all other professionals concerned with IAQ.   This comprehensive publication provides both summary and detailed guidance in the form of a printed book and   accompanying CD. 

The complete text may purchased from the ASHRAE Bookstore, or downloaded for free.

GET THE GUIDE

Close