Relative humidity levels indoors should be maintained within which range?

Relative humidity levels indoors should be maintained within which range?

• A. 0-100%
• B. 10-20%
• C. 20-60%
• D. 60-80%

Answer: (C)

Maintaining indoor relative humidity levels within the range of 20-60% is important for several reasons. This range is optimal for both comfort and health. Low humidity levels, below 20%, can lead to dry skin, respiratory issues, and can exacerbate allergies. On the other hand, high humidity levels, above 60%, can promote the growth of mold, dust mites, and other allergens, which can negatively impact indoor air quality and lead to health problems. Furthermore, controlling humidity levels within this range helps protect building materials and furnishings from damage caused by excess moisture or dryness. Achieving 20-60% relative humidity creates an environment that balances comfort, health, and building integrity, making it the ideal choice for indoor settings.

Maintaining indoor relative humidity levels within the range of 20-60% is important for several reasons. This range is optimal for both comfort and health. Low humidity levels, below 20%, can lead to dry skin, respiratory issues, and can exacerbate allergies. On the other hand, high humidity levels, above 60%, can promote the growth of mold, dust mites, and other allergens, which can negatively impact indoor air quality and lead to health problems.

Furthermore, controlling humidity levels within this range helps protect building materials and furnishings from damage caused by excess moisture or dryness. Achieving 20-60% relative humidity creates an environment that balances comfort, health, and building integrity, making it the ideal choice for indoor settings.