IREM Certified Property Manager (CPM) Practice Test 2025 - Free CPM Practice Questions and Study Guide

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Which of the following can improve indoor air quality?

Increasing indoor humidity levels

Filtration to address outside air

Improving indoor air quality involves strategies that enhance the clarity and safety of the air we breathe inside buildings. Utilizing filtration systems to address outside air is a highly effective method because these systems help to remove pollutants, allergens, and particulate matter before they circulate throughout an indoor environment. Filtration can capture harmful particles from the outside air, including dust, pollen, and even certain gases, leading to an overall healthier living or working space.

This approach tackles one of the main sources of indoor air pollution—contaminated outdoor air—by ensuring that the air which enters the indoor environment is as clean as possible. Implementing effective air filtration systems can significantly decrease the levels of asthma triggers and allergens present indoors, thereby contributing to better respiratory health and comfort for occupants.

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Reducing ventilation

Using more carpets and rugs

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