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

Air filtration

Features/Air/Feature 05

Air filtration

Intent: 

To remove indoor and outdoor airborne contaminants through air filtration.

05: Air filtration
    Post Date: 01 May, 2019
    Status: Approved

    Multifamily residential projects may achieve Feature 5, Part 1 by providing subsidized rental of purification systems to tenants via a discounted rental rate of the dwelling unit. Project teams must demonstrate that the discounted rent is lower than the market value of the dwelling unit and that the difference will cover the rental of air purification devices. Tenants are required to sign an agreement for purchasing or leasing air purifier(s) in order to receive the discounted rate.
    Post Date: 24 Oct, 2016
    Status: Approved

    In a project with a split-system air conditioning unit that does not allow for accommodating MERV 13 filters, the following measures may be implemented as an alternative. For Parts 1 and 2a of this feature, a standalone air purifier with carbon filter and HEPA filter performing equivalent to MERV 17-20 may be used in accordance with manufacturer’s guidelines. Installation of the HEPA filters may not be conditional based on the criteria in Part 2b. A sufficient quantity of stand-alone air purifiers and carbon filters and HEPA filters must be provided in accordance with the manufacturers recommended area coverage. Provide a policy document to confirm Part 3 of this Feature, and a policy document that confirms that the project owner will maintain and replace the filters and filter units located within the project as per manufacturer specifications.
    Post Date: 24 Oct, 2016
    Status: Approved

    Projects unable to provide additional space for carbon filters may instead educate future tenants on their ability to buy and install stand-alone air purifiers with carbon filters. The project team must provide a letter signed by the project owner to confirm that if required for WELL certification in the future, the project owner will buy and install the air purifiers with filters on behalf of the tenant. It must be demonstrated that adequate wall space is accommodated to install wall-mounted air purifiers. The WELL Performance Testing Agent will confirm the available wall space and examine a copy of all the information given to tenants during the project’s Performance Verification.
    Post Date: 06 May, 2016
    Status: Approved

    In lieu of installing rack space for future carbon filters, an execution plan for future modifications to the HVAC system to create rack space for carbon filters may be provided in the event that the installation of carbon filters is a requirement of the WELL Building Standard in the future. To follow this approach, it must be confirmed that the system would be able to physically accept carbon filters should the necessary rack space be created, the plan must identify the cost estimates of renovating the HVAC system to include the necessary rack space to confirm that it is considered a capital improvement item, and the owner must commit to making the upgrades should the WELL Building Standard require carbon filters in a future recertification of the project.
    Post Date: 06 May, 2016
    Status: Approved

    Multifamily Residential projects may use wall-mounted HEPA filters to meet the requirements of Feature 5 Parts 1 and 2, provided the project contains a sufficient quantity of wall mounted HEPA filters in accordance with the manufacturer’s recommended area coverage. In addition, a policy document must be provided confirming Part 3 of the Feature and that the Owner will maintain the filters for the units that are located in both common and private areas.