Current Indoor Air Quality at Our Office
Below is live data from the MT419 monitor in Gold-Pick's office, showing the monitor in real-world operation.

Air Quality Monitors: MT400 Series
As indoor air quality (IAQ) gains attention, government regulations and green building standards (WELL, LEED) set clear requirements for CO₂ management. Good air quality helps improve concentration, reduce the spread of disease vectors, and protect the health of customers and employees.
The MT400 series supports real-time display, back-end platform data analysis and integration with BAS / energy management systems. It monitors PM2.5, TVOC, CO₂ and other indicators in real time and provides long-term trend analysis, suitable for homes, offices, educational institutions and public spaces. The MT419 is also Works with WELL certified.
- Works with WELL certified
- Helps achieve WELL / LEED
- LoRaWAN® wireless transmission
- Cloud reports · Excel export
- API integration & automation
Air Quality Indicators Monitored
Depending on the model, up to 9 sensors are integrated for a complete picture of the indoor environment.
CO₂CO₂ concentration, to judge whether ventilation is sufficient
PM2.5 / PM10Particulate matter, an indicator of air pollution and smoke
TVOCVolatile organic compounds
HCHO / O₃Formaldehyde and ozone (MT419 series)
TemperatureTrack ambient temperature in real time
HumidityToo high or too low affects comfort and health
LightBrightness data to check lighting conditions
Barometric PressureMeasures and records atmospheric pressure
PIR activityPassive infrared detection of human presence and activityWhy Install an Air Quality Monitor
Protect Health
Long-term exposure to pollutants such as PM2.5, PM10, ozone and nitrogen dioxide increases the risk of respiratory and cardiovascular disease, which is especially important for children, the elderly, and people with allergies or asthma.
Know Your Air in Real Time
Monitor changes in air quality at any time and respond, such as opening windows or turning on an air purifier; it can also be linked to automatically control HVAC or purification equipment.
Improve Quality of Life
Helps homes, schools, offices and factories maintain a healthy, comfortable environment and reduces fatigue, headaches and poor concentration caused by air pollution.
Environmental & Sustainable Management
Understand pollution sources and trends as a basis for improving air quality and shaping policy, advancing green buildings and smart cities.
Respond to Emergencies
In industrial zones and high-traffic areas, it helps detect abnormal emissions, fires, gas leaks and other hazards in real time, and can be integrated with emergency response systems.
Meet Regulations & Certifications
For certain industries, schools and public facilities, air quality monitoring is a legal requirement or a green building assessment criterion (e.g. WELL, LEED).
Real-World Applications






Gold-Pick Air Quality Monitor Advantages
Comprehensive Sensing
Integrates particulate matter (PM2.5/PM10), gases such as CO₂, TVOC and O₃, plus environmental parameters such as temperature, humidity and barometric pressure.
Cloud Platform Integration
With the Gold-Pick cloud management platform, view data remotely in real time from your computer, generate reports with Excel export, and manage multiple monitoring points centrally.
Smart Device Integration
API integration lets you automatically control air purifiers, ventilation systems and window actuators, creating an "automatic ventilation + air improvement" environment.
Tuned for Taiwanese Settings
Temples and worship halls often have incense smoke, so PM2.5 smoke sensitivity is specially tuned, making it suitable for places of worship, performance venues, schools, office buildings and factories.

Series Comparison and Selection
Choose flexibly according to your site's needs for the IAQ monitoring solution that best fits your budget and requirements.
MT203 / MT203L3-in-1 Air Quality MonitorCost-effective option monitoring CO₂, temperature and humidity, ideal for basic IAQ management in classrooms, meeting rooms and offices.


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MT204 / MT2077-in-1 Air Quality MonitorAdvanced model with CO₂, TVOC, temperature, humidity, light level, barometric pressure and PIR activity, ideal for offices, classrooms and commercial spaces.






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MT4199-in-1 Air Quality MonitorFlagship model, Works with WELL certified, including PM2.5/PM10 and HCHO/O₃, for large spaces such as shopping malls, healthcare facilities and schools.








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MT75LoRaWAN® GatewayIndustrial-grade quad-core processor and IP65 enclosure, supports more than 2,000 connected nodes, covers about 2 km in urban environments, with a built-in network server and support for the Gold-Pick cloud platform.
Taiwan Indoor Air Quality Standards
Under Taiwan's Indoor Air Quality Act, the Ministry of Environment sets standards for 9 pollutants. The table also shows which ones Gold-Pick air quality monitors can track 24/7 in real time.
| Pollutant | Standard | Averaging time | Gold-Pick monitors |
|---|---|---|---|
| Carbon dioxide CO₂ | 1000 ppm | 8-hour | Real-time (all models) |
| Fine particulates PM2.5 | 35 μg/m³ | 24-hour | Real-time (MT419) |
| Particulates PM10 | 75 μg/m³ | 24-hour | Real-time (MT419) |
| Total VOCs (TVOC) | 0.56 ppm | 1-hour | Real-time (MT207 / MT419) |
| Formaldehyde HCHO | 0.08 ppm | 1-hour | Real-time (MT419) |
| Ozone O₃ | 0.06 ppm | 8-hour | Real-time (MT419) |
| Carbon monoxide CO | 9 ppm | 8-hour | Lab testing required |
| Bacteria | 1500 CFU/m³ | Maximum | Sampling required |
| Fungi | 1000 CFU/m³ | Maximum (exempt if indoor/outdoor ratio ≤ 1.3) | Sampling required |
Source: Ministry of Environment (formerly EPA), Indoor Air Quality Standards. Please refer to the latest official announcement for applicable venues and testing methods.
Air Quality Monitor FAQ
The questions customers ask most before choosing an IAQ or CO2 monitor.
Which venues does Taiwan's Indoor Air Quality Act cover?
Mainly busy public places where people stay for long periods, such as universities, libraries, hospitals, social welfare facilities, government offices, department stores, exhibition halls and transport stations. Designated venues must appoint a dedicated IAQ manager and carry out and publish regular testing. Refer to the Ministry of Environment's announcements for the venues in each batch.
What is the CO2 limit, and what happens when it is too high?
Taiwan's standard limits the 8-hour average CO₂ concentration to 1000 ppm. High CO₂ usually means poor ventilation: people feel tired, dizzy and less focused, and other pollutants may build up too. A CO₂ monitor in classrooms, meeting rooms and offices can prompt ventilation or trigger fresh-air systems as levels rise.
What can the monitors measure, and which model should I choose?
For ventilation only, the 3-in-1 MT203 (CO₂, temperature, humidity) is enough. Offices, classrooms and commercial spaces suit the 7-in-1 MT207, which adds TVOC, light, pressure and occupancy. Malls, healthcare and large school spaces suit the 9-in-1 MT419, which adds PM2.5/PM10, formaldehyde and ozone.
See the MT419 9-in-1 monitor →Where should monitors be installed, and how many do I need?
Install them where people spend most time, at breathing height (about 1.2–1.5 m), away from AC vents, doors, windows, printers and heat sources. Large or partitioned spaces need one per zone to show which area is poorly ventilated. Gold-Pick surveys sites across Taiwan and plans locations and quantities.
Can I view data remotely and export reports?
Yes. Monitors send data through the MT75 LoRaWAN® gateway to Gold-Pick's cloud platform, so managers can view live values and history on a computer or phone, export reports for records or green building certification, and show live IAQ on a display at the entrance.
Do you have monitors for WELL and LEED certification?
Yes. The MT419 is Works with WELL certified and helps earn indoor air quality credits for WELL and LEED certification.
What services does Gold-Pick provide, and how is pricing calculated?
Gold-Pick provides site assessment, location planning, installation, training and maintenance across Taiwan. Pricing depends on the parameters, number of units and whether cloud reports or displays are needed. Call +886-2-2557-7028 or message us on LINE for a free quote.
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