This is a legacy version of the WELL Building Standard. Please check the latest version here.
  1. Air
  2. Ventilation effectiveness

Ventilation effectiveness

Features>Air>03. Ventilation effectiveness

03. Ventilation effectiveness

Intent: 

To ensure adequate ventilation and high indoor air quality.

Posted on: 27 Apr, 2017
Amendment:

For Part 2b, add: "(measured at 1.2-1.8 m [4-6 ft] above the floor)" after "below 800 ppm" and add: "maximum" after "at"
Posted on: 27 Apr, 2017
Amendment:

For Part 2a, add: "(measured at 1.2-1.8 m [4-6 ft] above the floor)" after "800 ppm" at the end of the sentence
Posted on: 24 Oct, 2016
Amendment:

In Part 3a, change "After substantial completion and prior to occupancy, the HVAC system undergoes testing and balancing" to "After substantial completion and prior to occupancy, the HVAC system has (within the last 5 years), or is scheduled to, undergo testing and balancing."
Posted on: 10 Feb, 2016
Amendment:

At the end of Part 1b, add "Quality Standards feature in the WELL Building Standard for at least 95% of all hours in the previous year."
Posted on: 10 Feb, 2016
Amendment:

Under Part 2, after “For all spaces” insert the following: “46.5 m² [500 ft²] or larger”
Features>Air>03. Ventilation effectiveness