This air quality monitor with Alexa integration measures PM 2.5, VOCs, CO, humidity, and temperature. It provides air quality scores via the Alexa app and a color-coded LED indicator. Pair it with an Echo device to receive notifications and enable Routines for automated air quality management. Price down from $39.99 to just  $29.99 when you add the code "DEVICE25" during checkout. Shipping is free with Amazon Prime or is otherwise a flat $6 per order.

This is a refurbished item.