# Aqara TVOC Air Quality Minitor **URL:** \ **Category:** Questions & Help\ **Created:** [October 24, 2023, 1:30pm UTC](https://community.homey.app/t/aqara-tvoc-air-quality-minitor/92705 "2023-10-24T13:30:21Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\ **Post date:** [October 24, 2023, 2:21pm UTC](https://community.homey.app/t/aqara-tvoc-air-quality-minitor/92705/2 "2023-10-24T14:21:24Z")
It depends, is it just VOC being above threshold or even VOC hasn’t updated at all, together with Temp and Humidity. If it’s not updated, it might be related to the TVOC sensor firmware > [@Aqara firmware updates when connected to homey](https://community.homey.app/t/aqara-firmware-updates-when-connected-to-homey/70153/9): > > Thanks for sharing - I confirm I have been able to upgrade firmware of TVOC sensor and also I can confirm no other device got any new firmware (Aqara temp. sensors, flood, vibration). Now let’s see if this will resolve the measurements update data, as I was used to press the button on the sensor to start receiving updates again slight_smile It might be (you didn’t specify which Homey you do run) related to the necessity to do the repair in case of HP23 - [[APP] Aqara & Xiaomi Smart Home - A different kind of Smart Home solution (Zigbee App) - #4912 by Sharkys](https://community.homey.app/t/app-aqara-xiaomi-smart-home-a-different-kind-of-smart-home-solution-zigbee-app/156/4912) Or it might be just battery being empty (does it react when you switch modes on your sensor?) > [@Bazeloth](#): > > VOC alarm threshold ChatGPT : The recommended VOC (Volatile Organic Compounds) alarm threshold in parts per billion (ppb) can vary depending on factors such as the specific VOCs you want to monitor and your indoor air quality goals. As a general guideline, a threshold of 200-300 ppb is often considered a good starting point for alerting to potential air quality issues. --- _[View the full topic](https://community.homey.app/t/aqara-tvoc-air-quality-minitor/92705)._