Amazon Smart Air Quality Monitor w/Alexa

This air quality monitor tracks and measures 5 key factors: particulate matter (PM 2.5), volatile organic compounds (VOCs), carbon monoxide (CO), humidity, and temperature. It indicates current air quality through a color-coded LED and an easy-to-understand air quality score in the Alexa app. The price drops from $69.99 to $52.99. Shipping is free.