What are the contaminant parameters for medical air in terms of pressure dewpoint and acceptable levels of gases?

The correct answer encompasses the specific standards set for medical air quality, particularly in healthcare settings where equipment relies on the purity of air for patient safety and operational effectiveness. A pressure dewpoint of 35°F ensures that the moisture content in the air is kept at a minimal level, thus preventing water condensation that could lead to microbial growth and degradation of medical equipment.

Furthermore, the specified limits on gas contaminants, with a maximum of 25 ppm for carbon monoxide and 10 ppm for gaseous hydrocarbons, align with the stringent safety standards necessary for respiratory therapies and anesthesia processes. Carbon monoxide is a toxic gas that can lead to serious health issues, while hydrocarbons can contribute to airway irritation and additional respiratory complications.

Meeting these parameters ensures that medical air is free from potentially harmful contaminants that could compromise patient care or hinder the functionality of medical devices dependent on high-quality air supply. The combination of these criteria in the correct choice reflects comprehensive adherence to regulatory standards, emphasizing both moisture control and contaminant limits.