June is National Safety Month, a time dedicated to raising awareness about safety in the workplace and ensuring that employees are protected from potential hazards. One often-overlooked aspect of workplace safety is the quality of the indoor environment, particularly concerning Volatile Organic Compounds (VOCs) and mold. Inside air may be 25-100 times more polluted than outside air.  These elements can significantly impact employee health and productivity, making it crucial for businesses to address these issues proactively.

Understanding VOCs and Mold


Volatile Organic Compounds are organic chemicals that can easily become vapors or gases. They are released from various sources, including office equipment, furniture, carpeting, cleaning products, paints, adhesives, and more. Many are known carcinogens. Exposure to high levels of VOCs can lead to various health issues, such as:

  • Headaches
  • Dizziness
  • Respiratory problems
  • Eye, nose, and throat irritation
  • Excessive fatigue
  • Nausea


Mold is a type of fungus that thrives in damp and humid environments. It can grow on various surfaces, such as walls, ceilings, and carpets, particularly in areas with poor ventilation. Mold exposure can cause:

  • Allergic reactions (sneezing, runny nose, red eyes, and skin rash)
  • Sinus congestion
  • Respiratory issues
  • Chronic fatigue
  • Severe health problems for those with compromised immune systems

The Impact on Employees

The presence of VOCs and mold in the workplace can lead to significant health concerns, affecting employees’ well-being and productivity. Poor indoor air quality (IAQ) can cause symptoms that mimic common illnesses, leading to increased absenteeism and reduced efficiency. Employees working in environments with high levels of VOCs or mold may experience frequent sick days, decreased motivation, and lower job satisfaction.

Furthermore, a workplace that does not address these environmental hazards may face higher healthcare costs and potential legal liabilities. It is in the best interest of employers to maintain a healthy working environment to ensure employee safety and optimal performance.

Steps to Improve Indoor Air Quality

To protect employees and enhance workplace safety during National Safety Month and beyond, businesses should consider implementing the following measures:

Regular Testing and Monitoring:

Conduct regular indoor air quality tests to detect the presence of VOCs and mold.

Use professional services like RTK Environmental to perform thorough assessments and provide actionable recommendations. RTK Environmental’s analysis covers almost 100 of the most common VOCs and tens of thousands of types of molds. To ensure reliable results, RTK sends all samples to independent laboratories accredited by the American Industrial Hygiene Association.


Ensure proper ventilation in all areas of the workplace to reduce the concentration of VOCs and help to prevent mold growth. Utilize air purifiers with HEPA/charcoal filters to improve air quality. The HEPA filters will eliminate almost all particulates and charcoal filters will help to dramatically reduce most VOCs. Both can be used in free standing units or integrated in the HVAC system.

Source Control:  Identify, eliminate or minimize sources of VOCs.

  • Personal care products are one of the biggest contributors of VOCs in the workplace. Avoid their use as much as possible and keep them in sealed containers when not in use.
  • Avoid the use of hazardous cleaning products and opt instead to use readily available organic cleaning products.
  • Prohibit the use of any spray products including hair spray, furniture polish, window cleaners and air fresheners.
  • In a new office use low or no VOC paint and don’t buy engineered wood products made with particle board, etc. Opt for solid wood and natural fibers. Avoid synthetic carpet and install natural fiber carpeting instead.
  • Keep the temperature and humidity as low as possible and open windows and doors, as possible, to allow fresh air to enter.

Moisture Control:

Address any water leaks or condensation issues promptly to help prevent mold growth.  Use dehumidifiers in areas prone to high humidity to keep levels at 50% or below.

Employee Education:

Educate employees about the importance of indoor air quality and how they can contribute to a healthier work environment.  Encourage them to report any signs of mold or poor air quality.

National Safety Month is an ideal time for businesses to assess their workplace safety protocols and ensure they are taking the necessary steps to protect employees from the harmful effects of VOCs and mold. By prioritizing indoor air quality, companies can create a healthier, more productive work environment, ultimately benefiting employees and the organization.

For more information on testing and improving indoor air quality, consider consulting experts like RTK Environmental, who can assess current conditions and provide the expertise and solutions needed to maintain a safe workplace.







Past exposure to lead may be to blame for over 400,000 deaths in the United States every year (The Lancet Public Health.)

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