I wasn't satisfied with the Enviro pHat:

• It had no humidity sensor, which would be nice to have for air quality measurements
• It had a light sensor, which is not great for privacy perspective: the recorder is installed in a communal space, and the light sensor could be used to tell if someone is there or not.

Pimoroni just launched a new Enviro+ pHat, same format but with more sensors. It had a humidity sensor (great!) and other interesting sensing equipment, but also a microphone, which would be a big no-no privacy-wise.

I tried instead a BME680 breakout, with a pinout directly compatible with a Raspberry Pi. I still had to deport the sensor, otherwise the heat of the Pi would significantly bias the measurements (+5°C bias in my case).