For achieving compliance with WELL v2™ Feature A01: Air Quality, Part 2, which focuses on monitoring and meeting thresholds for organic gases such as volatile organic compounds (VOCs), the requirement for the number of sensors is based on the area of the project. The correct choice for an 87,500 ft² (8,120 m²) project is:
C. 20 VOC sensors
Sensor Distribution Standard: The WELL v2™ standard typically recommends installing one VOC sensor for every 5,000 square feet of project space to ensure adequate monitoring coverage and accuracy in detecting VOC levels throughout the space.
Calculating Sensor Needs: For an 87,500 ft² area, dividing by the 5,000 ft² coverage per sensor gives a requirement of 17.5 sensors. Rounding up to the nearest whole number, this would typically mean at least 18 sensors are necessary. However, to ensure comprehensive coverage and considering practical deployment strategies (such as additional sensors for high-risk areas like kitchens or print rooms), the minimum practical number could rise to the next available option, which is 20 sensors.
Ensuring Comprehensive Coverage: Adequate sensor placement is crucial for real-time monitoring and ensuring all areas of the project meet air quality standards consistently. This is especially important in larger spaces where air quality can vary significantly from one area to another.
Health and Compliance Implications: By meeting the minimum required number of sensors, the project not only adheres to WELL standards but also protects occupant health by enabling prompt identification and mitigation of poor air quality events, particularly those related to VOC emissions from building materials, furnishings, and equipment.
Rationale Behind the AnswerImportance in ContextThis approach aligns with WELL’s overarching goal of fostering environments that support occupant health through proactive management of building air quality. The focus on sufficient and strategic sensor deployment is a critical component of ensuring that indoor environments remain safe and healthy for all users.
