Continuous monitoring refers to real-time, 24/7 measurement of indoor air quality parameters using permanently installed or long-term sensors that collect data without interruption. This approach captures air quality variations across different times, occupancy levels, and operational conditions over extended periods.
Technical Implementation
Continuous monitoring systems use networked sensors connected to data loggers or building management systems (BMS). Sensors record measurements at intervals ranging from 1 minute to 15 minutes, depending on the parameter and system design. Data is stored locally or transmitted to cloud platforms for analysis. Battery-powered or hardwired installations support different deployment scenarios.
HVAC Applications
HVAC professionals deploy continuous monitoring to validate system performance, tune demand-controlled ventilation, and diagnose intermittent problems. Long-term data reveals how occupancy, outdoor conditions, and system operation affect indoor air quality.
Advantages Over Spot Testing
Continuous monitoring identifies problems that spot sampling might miss and provides baseline data for comparison. It supports optimization of ventilation schedules and filter maintenance intervals based on actual building conditions rather than assumptions.