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What indoor air level of formaldehyde is Minnesota's product standard designed to not exceed?

  1. 0.1 parts per million

  2. 0.2 parts per million

  3. 0.4 parts per million

  4. 0.8 parts per million

The correct answer is: 0.4 parts per million

The Minnesota product standard is designed to ensure indoor air quality by limiting the concentration of formaldehyde to a maximum of 0.4 parts per million (ppm). This standard reflects the state's commitment to protecting public health, as formaldehyde is known to be a volatile organic compound that can pose health risks when present in elevated levels. Formaldehyde can cause various symptoms, particularly in sensitive individuals, such as irritation of the eyes, nose, and throat, and prolonged exposure may lead to more severe health outcomes. Setting the maximum indoor air level at 0.4 ppm is based on research that identifies levels below this threshold as being safer for general occupancy in residential and commercial spaces. It's essential to maintain indoor air quality standards to minimize any potential adverse effects and ensure a healthier living environment. Consequently, knowing that the standard is set at this specific level helps real estate professionals advise clients accurately on existing properties and their compliance with health regulations.