11-in-1 Air Quality Monitor, Indoor CO2/VOC/AQI/PM2.5/Thermometer/Humidity Monitor, Portable Smart Air Quality Meters, Air Quality Tester for Home Office Outdoor, Battery Powered (White) is up for auction in Tools & Home Improvement. The current bid is $4.00, 90% below the $39.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.