Indoor Air Quality Assessment Checklist [FREE PDF]

Indoor air quality (IAQ) directly impacts employee health, productivity, and regulatory compliance under the OSHA General Duty Clause 5(a)(1), which requires employers to provide a workplace free from recognized hazards. The EPA's Indoor Air Quality guidelines identify poor ventilation, chemical contaminants, and biological pollutants as primary risk factors in commercial buildings. Regular IAQ assessments help organizations proactively identify and remediate air quality issues before they resul

  • Industry: Workplace Safety
  • Frequency: Quarterly
  • Estimated Time: 45-60 minutes
  • Role: Safety Coordinator
  • Total Items: 33
  • Compliance: OSHA General Duty Clause Section 5(a)(1), EPA Indoor Air Quality Building Assessment Protocol, ASHRAE Standard 62.1-2019 Ventilation for Acceptable Indoor Air Quality, OSHA 29 CFR 1910.94 Ventilation, Local Building Code HVAC Ventilation Requirements

Ventilation System Inspection

Assess the condition and performance of HVAC and ventilation equipment supplying fresh air to occupied spaces.

  • Are all HVAC air supply and return vents free from obstruction?
  • Have HVAC air filters been replaced within the manufacturer's recommended schedule?
  • Is the outdoor air intake free from visible debris, pests, or contamination sources?
  • Is the HVAC system operating and maintaining comfortable temperature ranges?
  • What is the date of the last professional HVAC maintenance service?

Carbon Dioxide & Air Exchange Monitoring

Measure and document CO2 concentrations as an indicator of adequate fresh air ventilation and occupant density.

  • Has CO2 concentration been measured in occupied areas today?
  • What is the measured CO2 level in the primary occupied zone (ppm)?
  • Are windows or supplemental ventilation available in high-CO2 zones?
  • Have occupants reported symptoms such as headaches, fatigue, or difficulty concentrating?
  • Describe any occupant IAQ complaints received in the past 90 days.

Chemical Contaminant Assessment

Identify potential sources of volatile organic compounds (VOCs), cleaning chemicals, and other airborne chemical pollutants.

  • Are all cleaning and chemical products stored in properly sealed, ventilated areas away from occupied zones?
  • Have any new building materials, furniture, or carpets been installed in the past 6 months?
  • Are any photocopiers, printers, or laser equipment located in adequately ventilated spaces?
  • Is there any detectable chemical odor present in occupied areas?
  • Are Safety Data Sheets (SDS) available for all chemicals used in or near occupied spaces?

Moisture, Mold & Biological Contaminants

Inspect for visible moisture intrusion, mold growth, and conditions that support biological contaminant proliferation.

  • Is there any visible mold growth on walls, ceilings, vents, or surfaces?
  • Are there any signs of water intrusion, staining, or leaks on ceilings or walls?
  • What is the current relative humidity level in occupied spaces (%)?
  • Are HVAC drip pans and condensate lines clean and free from standing water?
  • Are restrooms and kitchen areas adequately ventilated to prevent humidity buildup?

Thermal Comfort & Temperature Control

Evaluate whether temperature and humidity conditions meet acceptable comfort standards for occupants.

  • What is the current ambient temperature in the primary work area?
  • Are thermostats functioning correctly and accessible to facility management?
  • Have occupants reported consistent complaints about being too hot or too cold?
  • Are personal heating or cooling devices (space heaters, fans) being used by occupants?

Occupant Awareness & Reporting Procedures

Verify that employees are aware of IAQ concerns and know how to report issues appropriately.

  • Is there a documented procedure for occupants to report IAQ concerns?
  • Have occupants received IAQ awareness information or training in the past year?
  • Is an IAQ contact or building manager identified and accessible to all occupants?
  • Are previous IAQ inspection records maintained and accessible for review?
  • Provide any additional notes or corrective actions identified during this assessment.

Photographic Documentation

Capture visual evidence of IAQ-relevant conditions, deficiencies, and equipment status.

  • Has a photo of the primary HVAC supply and return vents been captured?
  • Has a photo of any identified mold, moisture damage, or visible deficiency been captured?
  • Has a photo of the air filter condition or recent maintenance record been captured?
  • What is the overall IAQ risk rating for this inspection?

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Why Use This Indoor Air Quality Assessment Checklist [FREE PDF]?

This indoor air quality assessment checklist [free pdf] helps workplace safety teams maintain compliance and operational excellence. Designed for safety coordinator professionals, this checklist covers 33 critical inspection points across 7 sections. Recommended frequency: quarterly.

Ensures compliance with OSHA General Duty Clause Section 5(a)(1), EPA Indoor Air Quality Building Assessment Protocol, ASHRAE Standard 62.1-2019 Ventilation for Acceptable Indoor Air Quality, OSHA 29 CFR 1910.94 Ventilation, Local Building Code HVAC Ventilation Requirements. Regulatory-aligned for audit readiness and inspection documentation.

Frequently Asked Questions

What does the Indoor Air Quality Assessment Checklist [FREE PDF] cover?

This checklist covers 33 inspection items across 7 sections: Ventilation System Inspection, Carbon Dioxide & Air Exchange Monitoring, Chemical Contaminant Assessment, Moisture, Mold & Biological Contaminants, Thermal Comfort & Temperature Control, Occupant Awareness & Reporting Procedures, Photographic Documentation. It is designed for workplace safety operations and compliance.

How often should this checklist be completed?

This checklist should be completed quarterly. Each completion takes approximately 45-60 minutes.

Who should use this Indoor Air Quality Assessment Checklist [FREE PDF]?

This checklist is designed for Safety Coordinator professionals in the workplace safety industry. It can be used for self-assessments, team audits, and regulatory compliance documentation.

Can I download this checklist as a PDF?

Yes, this checklist is available as a free PDF download. You can also use it digitally in the POPProbe mobile app for real-time data capture, photo documentation, and automatic reporting.

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