Best Home Air Quality Monitors

Have you gone nose blind to household odors or dust?Check multiple measures of your home's air quality. FAN onboard allows REAL-TIME accurate monitoring of temperature (in C/F), humidity, formaldehyde (HCHO), total volatile organic compounds (TVOC), and micron-sized fine particulate dust (PM2.5/PM1.0/PM10). Formaldehyde is an environmental carcinogen yet odorless at lower concentrations. Detect low levels of airborne TVOCs not perceivable to the human nose. This device was featured with cabin filter testing during 2018 CA fires (see photos).Problems with allergies?This air quality monitor with built-in stand can continuously monitor your air quality and when you need to change your home's air filter. Watch the levels of indoor total volatile organic compounds and formaldehyde drop when the windows are opened. Learn where air quality is poorer and where your allergies can worsen. Allergies that are difficult to control with unexplained coughing, runny nose, and shortness of breath may be signs of sick building syndrome.Tips on Use:-Calibrate if 0.000 indoor readings noted or with new device.-Large variations & 9.999 TVOC readings do not indicate an error as this instrument is a sensitive electronic nose; environmental TVOCs vary much and high TVOCs often can result from interference from benign fragrances or odorsSpecifications:-2.8" color 240 x 320 LCD-DC 5V USB charging, runs 2-3 hrs on Li battery-HCHO: 0-1.999 mg/m³-TVOC: 0-9.999 mg/m³-PM1.0/PM2.5/PM10: 0-999 μg/m³As the only US based retailer of this item, we have a chemist on staff to answer any technical questions. We also include a 20+ pgs eBook on Gas & Air Quality Hazards emailed at time of item delivery.