Find quick answers to commonly asked questions about our products and services in our FAQ section, designed to streamline your experience and provide clarity. 


How to get started with the Air Quality Doctor app?

Here is a quick start guide video. 

Here is the link to detailed manual


How to calibrate the sensors?

Follow the below steps to calibrate the sensors. Here is a quick video on how to calibrate the air quality doctor.

  1. Keep the monitor in fresh air (outdoor under roof and not under direct sunlight, not exposed to too much wind or water source. Like : Porch, Sunroom, Room with open doors to fresh air, etc)
  2. Power ON the monitor, Let the TVOC values settle, at least for 10-15 mins
  3. Press the left button 3 times, the calibration starts with a buzzer sound and the values will become 0
  4. Wait for a minute, power off the monitor and bring it indoors
  5. Your monitors are now auto calibrated for VOC.
  6. The CO2 sensors get auto calibrated when kept in the fresh air for 10-15 mins as part of above VOC calibration, no additional step is needed. 
What devices will the air quality doctor app work with?

The App works on mobile devices (phones/tablets) with bluetooth capabilities and a cellular or Wi-Fi connectivity. The app is available on both iOS & Android platforms (AppStore & PlayStore)

Here are the download links,

For Apple Devices :  https://apps.apple.com/us/app/air-quality-doctor/id6447062865

For Android Devices :



How many number of days of assessment can I do using air quality Doctor kit?

You can do an air quality assessment for up to 5 days. Our minimum recommended time is 30 mins. You can do assessments from 15 mins to 5 days. 

How do I start the assessment?

There are 2 options to start an assessment. 

Option 1 : From the Monitor : Long press the Right button on the monitor

Option 2: From the App : Click on the Start button next to the monitor from the mobile app

Once started, you will see a timer run on the monitor display screen along with a color progress bar. 

I want to leave my contact details in the customer reports - PDF and Walkthru reports - How do I do it?

Go to the Reports Settings under profile page (click on the profile image to enter the profile page). You can set up your professional profile along with your contact details and a weblink to schedule meetings with you. These will come embedded on your interactive video walkthru reports so the customers can connect with you offline after you left their site. 

How to add my products to the store for evidence based recommendation?

You can add your products to the store from Air Quality Doctor Web dashboard. 

Watch this onboarding video for details:


If you require assistance in creating visual content such as images and videos for your products, our skilled digital creatives team is available to support you at a reasonable cost. Kindly share your details and requirements with us at care@bldghealth.net, and our team will promptly reach out to help fulfill your creative needs.

How to avail the BLDG store subscription? Why am I asked to set up payment?
  1. If you bought a kit, the redeem code would be pasted inside the top foam of your kit. You can scan it to activate your subscription. 
  2. The first year subscription is FREE with the kit purchase. You can set up the payment method for future renewals, we will notify before the second year charge is posted. 
  3. You can also opt to skip the payment set up during activation and set it up later when it's time for renewal. 
Is there a software subscription to be paid to use the Air Quality Doctor?

There is no additional software subscription to use the Air Quality doctor monitor or the app/web portal. If you need advanced analytics there is a software fee associated. To enroll for advanced analytics, you can email to us at care@bldghealth.net

What is the warm up time for the sensors?

The Air Quality Doctor kits needs to be fully charged for 24 hours before the first time use. Keep the device turned on during the first time charging, so the devices get adjusted to the environment and ready for use.

When moved between environments, the sensors may take up to 10 mins to get adjusted to the environment. Sometimes the VOC sensors need more warm up time taking 15 mins. Our reporting algorithm is designed in a way to eliminate the warm up duration from the reports. 

Do I need internet connection or cellular to use the Air Quality Doctor kits?

You do not need an internet connection to take the assessments, you will need internet connections to download the data and generate reports. 

The monitors come with a local storage that lets the monitors to record customer’s air quality data without needing an active internet connection. Once the assessment is ended, you will need to use your mobile device to download the data from the monitors to our cloud servers and generate report with evidence based recommendations.

If you wanted to take air quality assessment in a place without internet or cellular coverage, you can run the assessment, end it and bring it to a place where there is internet connection to generate reports. The data will not be lost unless and until you manually reset it. 

Can you explain what is meant by the VOC sensor being "relative"?

Similar to how our sense of smell adapts, the VOC sensor adjusts to its surroundings over time. It gauges VOC levels based on the cleanest air sample it has encountered in approximately the last week. To accurately detect VOCs, the sensor needs exposure to clean air periodically. If it remains in an environment with persistently high VOC levels for an extended period, it may, after about a week, mistakenly consider that air quality as its baseline for 'clean'.

What is the level of accuracy for the VOC sensor?

The VOC sensor's accuracy is not quantified in the same way as our other sensors. This is because its effectiveness varies with the specific combination of VOCs present in the air. The sensor is calibrated to deliver the most accurate readings for a typical mixture of VOCs found in human breath. However, deviations from this specific mix can lead to discrepancies in the sensor's readings. This challenge is not unique to our sensors; even professional-grade VOC monitors require precise knowledge and adjustment for the compound mix to ensure accurate measurements. Therefore, the readings from our VOC sensor should be regarded as indicative and not be solely relied upon for making critical health decisions or identifying specific gases.