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https://www.nist.gov/el/energy-and-environment-division-73200/nist-multizone-modeling/software/contam/download

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Engineering LaboratoryBuilding Energy & Environment Division 

## NIST Multizone Modeling

-  SOFTWARE  Expand or Collapse    -  CONTAM  Expand or Collapse      -  Download 
    -  Documentation 
    -  Disclaimer 
    -  Input Data 
    -  Program Revisions 
    -  Help 
    -  Tutorials 
    -  User Group 
  -  CFDO Editor 
  -  CONTAM 3D Exporter 
  -  Type98 
  -  CONTAM Weather File Creator 
  -  WPC Translator 
  -  ContamLink 
  -  CONTAM Particle Distribution Calculator 
  -  ContamRV 
  -  CONTAM Results Export Tool 
  -  1D Zone Data File Converter 
  -  LoopDA 
  -  Climate Suitability Tool 
  -  Particle Model - Single zone, Single size 
  -  Particle Model - Single zone, Size-resolved 
  -  VHP Mask Disinfection Tool 
  -  FaTIMA 
  -  ViPER 
-  APPLICATIONS  Expand or Collapse    -  Airflow and Ventilation 
  -  IAQ Analysis 
  -  Smoke Management 
-  CASE STUDIES 
-  CHIMP 

## Connect with us

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## Latest release

**CONTAM 3.4.0.4****Released**: January 5, 2023

**ContamW**: Windows: [CONTAM-3.4.0.4-Win32-setup.exe] (5.5 MB)    Installs 32-bit Windows versions of ContamW, ContamX, simread, simcomp, and prjup.    ContamX version 3.4.0.2. (no performance-related issues)

Program fixes:
                  - ContamW Issue #41: Fixed issue related to steady state results display.  	Issue identified by multiple user emails on or around 19 August, 2022.
                  - ContamW Issue #44: Modified popup dialog box display location to address multiple monitors. 
                  - ContamW Issue #45: Fixed multiple problems related to working with Control Super Elements.	                     - These issues did not exist in ContamW version 2.4c, but occurred due to code refactoring in 3.2 and beyond.
                    - Could not read SE libraries created with previous versions of ContamW
                    - Could not correctly copy SEs from PRJ to Library
                  - ContamW Issue #47: Export Data dialog option to Report Flows was not utilizing the time from the dialog box. Instead it reported the results for the time currently displayed on the SketchPad.
                  - ContamW Issue #48: Excessive memory usage when drawing on SketchPad.  	This issue was pointed out on the  CONTAM Google Group on 13 December, 2021 .
                  - ContamW Issue #49: Undefined duct segments were not detected by Building Check.  	This issue was pointed out on the  CONTAM Google Group on 19 August, 2022 .

## Previous Versions

See CONTAM Revision History for more detailed information.

**CONTAM 3.4.0.3****Released**: December 6, 2021

Program fixes:
                  - ContamW Issue #37: Defining duct junctions/terminals caused errors when saving the PRJ.  	This issue was pointed out on the  CONTAM Google Group 6 December, 2021 .

**ContamW**: Windows: [CONTAM-3.4.0.3-Win32-setup.exe] (5.5 MB)    Installs 32-bit Windows versions of ContamW, ContamX, simread, simcomp, and prjup.    ContamX remains at version 3.4.0.1.

**CONTAM 3.4.0.2****Released**: November 8, 2021

Program fixes:
                  - ContamW Issue #27: Find & Replace for AHS by Name provided a list of Filters instead of AHS names in the dropdown.
                  - ContamW Issue #32: Enable results display of large SIM files.
                  - ContamW Issue #33: Prevent use of asterisk "*" at beginning of zone name.
                  - ContamW Issue #34: Program crash when scrolling SketchPad to view airflow paths with Pressure or Flow limits exceeded.

**ContamW**: Windows: [CONTAM-3.4.0.2-Win32-setup.exe] (5.5 MB)    Installs 32-bit Windows versions of ContamW, ContamX, simread, simcomp, and prjup.

**ContamX**:Windows 64-bit: [contam-x-3.4.0.1-win64.zip] (3.1 MB)   Includes 64-bit versions of ContamX, simread, simcomp, prjup, and CONTAM_EPWtoWTH.exeLinux 64-bit: [contam-x-3.4.0.1-Linux-64bit.tar.gz] (2.2 MB)    Includes 64-bit versions of ContamX, simread, simcomp, and prjup

**CONTAM 3.4.0.1****Released**: January 8, 2021**ContamW**: Windows: [CONTAM-3.4.0.1-Win32-setup.exe] (5.5 MB)    Installs 32-bit Windows versions of ContamW, ContamX, simread, simcomp, and prjup.**ContamX**:These packages include ContamX, simread, simcomp, and prjup.Linux 64-bit: [contam-x-3.4.0.0-Linux-64bit.tar.gz] (1 MB) Linux 32-bit: [contam-x-3.4.0.0-Linux-32bit.tar.gz] (730 KB)Windows 64-bit: [contam-x-3.4.0-win64.zip] (900 KB)

**CONTAM 3.4.0.0Released**: July 2020**ContamW**: Windows: [CONTAM-3.4.0.0-Win32-setup.exe] (5.5 MB)    Installs 32-bit Windows versions of ContamW, ContamX, simread, simcomp, and prjup.

**CONTAM 3.2.0.2**Windows: [ CONTAM32.msi ] (6.6 MB)Windows 64-bit: [contam-x-32-release-x64.exe] (1.7 MB)Linux (ContamX only): [contam-x-3.2.0.0-linux.tar.gz ] (1.5 MB)CONTAM User Guide and Program Documentation version 3.2 [NIST.TN.1887.pdf] (3 MB)

**CONTAM 3.1**: [CONTAM31.msi ] (5.2 MB)

**CONTAM 3.0a**: [CONTAM30.msi ] (4.4 MB)

**CONTAM 2.4c**: [CONTAM24.msi ] (4.25 MB)

Last updated: 1/08/2021

Buildings and ConstructionIndoor air qualityEnergyEnvironment

## Contacts

                -  Steven Emmerich  steven.emmerich@nist.gov      (301) 975-6459   
                -  William Stuart Dols  william.dols@nist.gov      (301) 975-5860   
                -  Brian Polidoro  brian.polidoro@nist.gov      (301) 975-6445   

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