Tongdy MSD Supports Smart, Healthy Workplaces and ESG-Focused Green Building Operations in Shanghai and Chengdu
Tongdy MSD monitors installed in PwC smart meeting rooms and open-plan office areas, positioned at a representative breathing-zone height of approximately 1.4 m.
Project Background: Balancing Workplace Health and Energy Efficiency
As one of the world’s leading professional services organizations, PwC operates large office environments in both Shanghai and Chengdu, including extensive open-plan workspaces, frequently used meeting rooms, training areas, and collaborative spaces.
These high-end commercial offices presented three common challenges faced by modern workplace operators:
Rapid CO₂ Buildup in High-Occupancy Spaces
In enclosed meeting rooms at full occupancy, CO₂ concentrations can rise rapidly, potentially reaching 2,000–3,000 ppm within about 30 minutes with insufficient ventilation.
Elevated CO₂ levels can indicate inadequate ventilation and contribute to stuffiness, discomfort, and reduced perceived workplace quality.
Inefficient Fixed-Schedule Ventilation
Traditional fresh-air systems often operate according to fixed schedules rather than actual occupancy.
This can result in unnecessary energy consumption when spaces are empty, while ventilation may still be insufficient during periods of high occupancy.
ESG and Building Performance Data Requirements
Modern enterprises increasingly require objective and continuous environmental data to support green building operations, workplace performance assessment, sustainability reporting, and ESG management.
Reliable indoor environmental data therefore becomes part of the long-term digital asset base of the building.
The Solution: A Tongdy MSD Indoor Air Quality Monitoring Network
To address the requirements of commercial office environments, the project deployed Tongdy MSD multi-parameter indoor air quality monitors across selected spaces in PwC offices in Shanghai and Chengdu.
The number and location of monitoring points were determined according to the actual function, occupancy, and environmental characteristics of each space.
Six Key Parameters in One Device
Each Tongdy MSD integrates monitoring of six important indoor environmental parameters:
CO₂ using NDIR sensing technology
PM2.5
PM10
TVOC
Temperature
Relative humidity
Combining multiple measurements within a single commercial-grade monitor reduces the need for multiple individual devices on walls while providing a more complete picture of indoor environmental conditions.
Representative Breathing-Zone Placement
Monitors are installed within representative occupant breathing zones while avoiding direct airflow from supply vents and direct sunlight.
Proper positioning helps ensure that the measurements better reflect the environmental conditions actually experienced by occupants rather than localized interference from HVAC outlets or other environmental factors.
Centralized Connectivity and Data Integration
Through Ethernet connectivity, the monitors can connect to the building’s internal network and environmental data platform, enabling centralized data collection, visualization, and integration with wider smart-building infrastructure.
This gives facility teams a continuous view of indoor environmental conditions across zones.
Results: Data-Driven Green Offices and More Efficient Building Operations
The monitoring system provides the environmental data foundation required to support healthier workplace management and more energy-efficient ventilation strategies.
Key operational targets and project outcomes include:
CO₂ ≤ 850 ppm
Improved control of meeting-room CO₂ levels
18%–22%
Potential fresh-air system energy savings under optimized operating conditions
24/7 Continuous Monitoring
Continuous environmental data collection for ongoing building operation
RESET / WELL Support
Environmental monitoring data that can support applicable green and healthy building requirements
Core Value of the Project
Demand-Controlled Ventilation
Real-time indoor environmental and occupancy-related data can support Demand-Controlled Ventilation (DCV) strategies.
Fresh-air systems can dynamically adjust ventilation according to actual space demand, helping address the traditional problem of excessive ventilation in unoccupied areas and insufficient ventilation during peak occupancy.
Better Employee Experience
Continuous monitoring and more responsive ventilation management can help reduce stuffiness and improve perceived indoor comfort, particularly in high-density meeting and collaboration spaces.
The result is a healthier, more comfortable workplace environment designed to meet the expectations of modern international organizations and their employees.
Long-Term ESG Data Assets
Continuous indoor environmental monitoring creates a traceable historical database of workplace conditions.
This data can provide an important foundation for sustainability reporting, building performance evaluation, ESG initiatives, and long-term optimization of office operations.
Rather than being used only for real-time display, environmental data becomes a measurable and reusable building asset.
Why Tongdy MSD for Commercial Indoor Air Quality Monitoring?
Certified Performance and Reliable Monitoring
Tongdy MSD meets RESET Grade B requirements and is designed for continuous commercial building applications where data stability and long-term reliability are essential.
Patented Temperature and Humidity Compensation
Tongdy applies temperature and humidity compensation algorithms designed to minimize the influence of seasonal and environmental variations on sensor measurements.
This helps maintain consistent monitoring performance under changing indoor conditions.
Remote Service and Modular Sensor Design
Tongdy supports remote network diagnostics and calibration services, helping building operators simplify ongoing maintenance.
Its modular sensor design also allows key sensing modules to be replaced quickly on site without complex tools, reducing maintenance time and helping lower lifecycle service costs.
Engineering FAQ
Q: How many indoor air quality monitoring points should be installed in a commercial office?
For open-plan office areas, a typical reference approach is approximately one monitoring point per 200–300 m², subject to the applicable project standard, space layout, occupancy density, HVAC zoning, and monitoring objectives.
Independent meeting rooms and enclosed offices are generally recommended to have their own monitoring point where representative data is required.
Monitors should be installed within the primary occupant breathing zone, typically around 1.4–1.8 m above floor level, while avoiding direct supply airflow, direct sunlight, and other localized sources of interference.
Where applicable, sufficient separation from return-air openings should also be maintained.
Q: How can Tongdy monitors connect to an existing BMS?
Tongdy commercial monitoring devices provide multiple communication options and support both fieldbus and network-based protocols.
This enables system integrators and building operators to connect indoor air quality data to existing BMS/BAS, HVAC control systems, energy management platforms, and building IoT infrastructure with relatively straightforward integration.
From Environmental Monitoring to Data-Driven Workplace Management
The PwC Shanghai and Chengdu project demonstrates how continuous indoor air quality monitoring can become part of a broader smart workplace strategy.
By combining reliable multi-parameter sensing, representative zone-based deployment, network connectivity, and integration with building systems, indoor environmental data can support not only employee comfort and healthier workplaces, but also ventilation optimization, energy management, green building initiatives, and ESG reporting.
For modern commercial buildings, indoor air quality monitoring is evolving from a standalone sensing function into an important component of intelligent and sustainable building operations.
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Post time: Oct-28-2026