If Indoor humidity measured by My ecobee is less than 65%, then send HumidityNormal action to your Alexa device

This trigger fires every time your ecobee thermostat senses that the indoor humidity is less than a specific value you supply.

This service from mkZense will send an action to run a routine on your Alexa device. Use it to add Voice to your Applet.

HumidityNormal action