ANAVI gas detector (air quality) with iobroker, Pushover and Amazon Alexa Echo Show voice output

I've connected the ANAVI gas detector to iobroker (open source automation platform). When the air quality is bad, iobroker triggers a Pushover notification to my smartphone and Amazon Alexa (e.g. Amazon Echo Dot or Echo Show) is giving a voice output. The ANAVI gas detector recognizes different gases and smoke. More information on my project page: https://klomp.de/index.php/94-anavi-gas-smoke-detector-mqtt-iobroker-opensource-rauchmelder-rauchsensor-gassensor-luftqualitaet-esp8266