Many times I have mentioned that a simple VOC sensor isn’t enough to determinate if the air quality is good or not especially in interior environments. Formaldehyde CH2O is a VOC and since I have an AQ monitor uRAD A3 that features both a Formaldehyde sensor and a VOC sensor I will try to find out if there is a correlation between them.
I have been monitoring my house for Formaldehyde for over a month now by leaving the AQM on including while I was out on a trip for 4 days and during that time the house was well closed. This kind of experiment allowed me to determinate if my furniture, paint, etc outgassing Formaldehyde.Read More »
I have featured both devices on my blog uRAD A3 & AirVisual and since both devices allow the user to download a .csv/.txt file with all the registered measurements and as they both have a laser PM2.5 sensor and a CO2 sensor, I decided to compare both of them farewell.
Although I connected both devices side by side on 28/02/2018 at 10:40 am, I will compare the measurements from 5th March 2018 to 7th March 2018 because I wanted to allow the devices to adjust on the new environment, which was my bookcase.
Each device takes measurements at a different time rate. AirVisual, for example, was set to take measurements every 10-15min and uRAD every minute. Unfortunately, I couldn’t set both devices at the same time rate.