What reflects a high exposure factor (EF) in the workplace?

A high exposure factor (EF) in the workplace indicates a greater likelihood of individuals being exposed to harmful elements or conditions. In this context, high particulate levels or high indoor humidity directly contribute to a higher risk of exposure.

High particulate levels can lead to respiratory issues and other health problems, as particles might include allergens, pollutants, or other harmful substances that workers could inhale or come into contact with. Similarly, high indoor humidity can create an environment conducive to mold growth and can amplify the effects of particulate exposure, making it important to manage both factors for the health and safety of employees.

By contrast, low particulate levels and low indoor humidity can help reduce health risks, while regular air cleaning practices typically improve air quality, thereby decreasing the exposure risk. These factors do not reflect a high exposure environment, reinforcing why the presence of either high particulate levels or high indoor humidity is key in identifying a higher exposure factor.