QP Pro Air Quality Monitor


Award-winning 5-in-1 air quality monitor with 3.1″ HD retina display. Tracks 5 key metrics: PM2.5, dangerous gases (tVOC), CO2 (NDIR), temperature, and humidity. Also provides information on the outdoor environment including weather forecast, AQI, and UV index. 

Accuracy backed by Smart Air’s third-party tests.


See What’s In Your Air

QP Pro Air Quality Monitor

The air you breathe into your body has a huge impact on your health. The QP Pro allows you to 24/7 monitor the air in your home so you never breathe dangerous air again.

5-in-1 Comprehensive Monitoring

The QP Pro air quality monitor gives you a comprehensive look into the air you are breathing.

Award-Winning Air Quality Monitor

The QP Pro is both an iF and Red Dot design award winner.

Monitor Your Air From Anywhere

By connecting to the Qingping+ App, you can monitor your air from anywhere. Get instant alerts to your phone when air quality becomes unsafe. App available on the Apple and Google Play store.

Record and View Historical Data

Track and analyse your air quality over time and export data for further analysis.

Real-time Outdoor Snapshot

The QP Pro brings you weather forecasts, air quality index (AQI), UV index, and the time – all in one snapshot.

Smartphone-Like Touch Operation

A smooth user experience with tap and swipe functionality.

HD Retina IPS Display

3.1″, PPI 328, touch screen, automatic brightness adjustment, large viewing angle, high contrast.

Superior Performance

Incredibly responsive and accurate. Innovative vent design for more accurate sensors. Precision remains with long-term use.

Free Upgrades to Functionality

Continuous software upgrades to optimise existing functions and add new functions, similar to your smartphone.

Only Standalone Monitors Accurately Measure Air Quality

Built-in sensors on devices such as air purifiers can only detect the air conditions next to the device. The QP Pro independent air monitor can test the air anywhere.

Treat Your Body Right

High CO2 levels are common and often go unnoticed causing a variety of issues. The QP Pro will allow you to 24/7 monitor and crack a window open if concentrations get high. 

Track PM2.5, One of Biggest Killers in the World

Are your PM2.5 levels over the WHO limit of 5 micrograms? If so, studies show reducing your PM2.5 levels even just a little bit with HEPA air purifiers can reduce your risk of death significantly. 

  • PM2.5: One of the biggest killers in the world, with 99% of the population breathing dangerous levels. Even moderate levels are shown to cause cancer and heart disease.

  • tVOC: Dangerous gases such as formaldehyde which can irritate our organs and cause cancer.

  • CO2: High CO2 levels can result in drowsiness, headaches, high blood pressure, and more.

*If levels are high, a combination of HEPA air purifiers and improved ventilation can help lower levels

QP Pro Documents

Product Manual Quick set-up guide Brochure QP Pro Demo Lite vs Pro

QP Pro Technical Specifications

Your Purchase Includes Includes 1 × QP Pro Air Quality Monitor
Color White / Black
Dimensions L × W × H (mm) 85 × 68.4 × 86.3
Weight (g) 217
Ranges PM2.5: 0 ~ 999 μg/m³ Temperature: -10 ~ 50℃ Humidity: 0 ~ 100%RH TVOC: 0.005 ~ 9.999 mg/m³ CO2: 400 ~ 9999 ppm
Power Supply 5V – 1A / USB-C cable
Wi-Fi Wi-Fi 2.4GHZ
Sensors See FAQs below
Screen Type 3.1″ LCD Touch Screen / Resolution: 720 × 720
Supported Platforms XiaoMi Mijia, Apple HomeKit

Battery Information

Battery Type Lithium Ion Battery 1800mAh / 3.7V
Battery Life Approx. 4 hours

The QP Pro FAQs

Can the QP Pro detect formaldehyde? Is tVOC equal to formaldehyde?
Formaldehyde cannot be monitored with the QP Pro. tVOC (total volatile organic compounds) contains thousands of compounds, such as formaldehyde and benzene, but it is NOT equal to formaldehyde. tVOC reading may increase significantly when there are more people in the room, or during activities such as cooking, eating, cleaning, or make up, and usually falls back after the activity finish or ventilation. tVOC readings can also increase significantly when unsealed substances containing alcohol are present near the monitor. Indoor tVOC can also come from combustion products such as coal or natural gas, tobacco, and materials used in construction and decoration, furniture, and household appliances. Part of VOC is harmful to human, and by opening windows or turning on ventilation system, identify and eliminate the sources can effectively reduce tVOC concentrations.
How long is the battery life?
When not connected to USB power, the QP Pro Air Monitor will automatically shut down when the remaining power is 5%. The monitor can stand by for about 4 hours from fully charged to automatically shut down. It is recommended to keep the monitor connected to the power supply. The QP Pro Air Monitor has a built-in power management function similar to that of a laptop, which does not damage the battery.
Do I have to be connected to the Internet to use the monitor?
No. The air monitoring function works well without internet connection. When not connected to the Internet, the time, city weather condition or remote view of the air condition is unavailable.
What smart home platforms are supported?
  • Xiaomi Mijia
  • Apple HomeKit
How long does it support to view the history data? Does it support historical record export?
Hourly data in the past 24 hours, the highest and lowest readings of each day in the past 7 days is available for viewing.
Does it come with a plug?
No. To keep costs down, we only provide the ubiquitous 5V USB power cable to power it. Plug this into your laptop or a USB plug to charge.
How long does tVOC need to initialize after power on?
The first time you turn on the monitor, or turn off for more than 7 days, the tVOC initialisation will take at least 4 hours. If the monitor is off for less than 7 days, the initialisation times are approximately as follows:
  • Off for less than 1 hour: 30 seconds

  • 1 – 12 hours: 90 seconds

  • 12 – 48 hours: 6 minutes

  • 48 hours – 7 days: 12 minutes

  • More than  7 days (or the first time the power is turned on): 4 hours

If the monitor is turned off or restarted during the initialisation process, then the unfinished initialisation process will start from the beginning again after the power is turned back on.

What sensors are used?
The QP Air Monitors use the following sensors:
    • Grandway sensor – Built-in laser scattering PM2.5 sensor with high precision
    • Built-in Swiss Sensirion sensor for temperature and humidity, with high precision
    • Built-in SGP30 gas sensor by Sensirion for measuring tVOC. Multi-pixel technology, good accuracy and high consistency with unparalleled siloxane resistance, long-term stability and low drift
    • Built-in SenseAir CO2 Sensor S8 – Nondispersive infrared (NDIR) spectrum analysis from the world’s largest manufacturer of CO2 sensors. High stability, consistency, precision, excellent anti-interference and sensitivity.
What is the measuring accuracy??

Due to the wide variation in user environments and testing methods, we cannot guarantee accuracy, however the accuracy range of our internal tests is as follows:

  • Temperature: ±8℃ (the device needs to be turned on and placed in a windless environment for 30 min during the test)
  • Humidity: ±8% (the device needs to be turned on and placed in a windless environment for 30 min during the test)
  • 5: ±10μg/m³ when the reading is less than 100μg/m³; ±10% when the reading is greater than 100μg/m³ (the laser type PM2.5 sensor is susceptible to ultrasonic type humidifier, and it is recommended to turn off the humidifier for more accurate results)
  • tVOC: ±20% (the tVOC sensor requires complete initialisation – see FAQ on initialisation)
  • CO2: ±15% (CO2 in the air is not uniformly distributed so challenging for low cost sensors to be more accurate)
Is there a backlight function?
The screen comes with a backlight similar to a phone screen. You can manually turn off the screen, or enable “automatically turn off the screen after no operation for a period of time” in the settings.
How long is the standby time?
When not connected to USB power, the QP Pro Air Monitor will automatically shut down when the remaining power is 5%. The monitor has a battery life of approximately 4 hours from fully charged to automatically shut down, however it is recommended to keep the monitor permanently connected to a power supply. 
Why can’t I connect to the Wi-Fi?
The QP Air Monitors don’t support Wi-Fi that requires authentication to be completed on a web page or information to be entered in a special login client. Please check the network signal before purchasing as the monitor currently only supports 2.4GHz or 2.4GHz/5GHz networks. It will not work on a 5GHz network.

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Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.