10 Best air quality monitor (2025)

• Know your air – Amazon Smart Air Quality Monitor makes it easy to understand what’s in your indoor air.
• Track and measure – Keep tabs on 5 key factors: particulate matter (PM 2.5), volatile organic compounds (VOCs), carbon monoxide (CO), humidity, and temperature.
• Stay informed – Get an indication of current air quality from the color-coded LED, and an easy-to-understand air quality score in the Alexa app anytime.
• Get notifications – If Alexa detects poor air quality, you can get notifications on your phone or even announcements on Echo devices.
• Enable Routines to turn your Alexa-enabled devices such as air purifiers, dehumidifiers, and fans on and off when the indoor air quality changes.

• ✅【12-in-1 Air Quality Monitor Indoor】 The Nanezan multi-function Indoor Air Quality Monitor is an ideal choice. Is a very useful monitor to keep an eye on the air quality in your home. The Air Quality Monitor’s array of sensors provides a wealth of information: CO2, TVOC, PM1.0, PM2.5, PM10 indication, Humidity, Temperature and time, it also has a CO2 alarm. The surface of the product is skin-friendly and the texture looks very delicate. This Air Quality Tester For Home, keep your family breathing easily.
• ✅【CO2 Alarm & AQI Smiley Face】 The CO2 alarm function of this Air Quality Tester For Home is a crucial safety feature! Mountain fires produce a lot of CO2, when indoor CO2 concentration exceeds the safety threshold, the device will automatically trigger an alarm with a buzzing sound. when indoor AQI indicator in the "Good" range, the smiley face will appear on the screen, the smiley face slide left or right is really helpful in determining an overall picture of your air quality.
• ✅【Dual Chip & High Accuracy】 This Air Quality Monitor Indoor carries the newly upgraded 5.0 dual chip, Employs two separate but synergistic chips, one to process the data collected by the sensors and the other to manage the device's user interface, Higher processing speeds ensure that users receive real-time and accurate air quality information. This Indoor Air Quality Monitor makes a quantum leap in technology, provides unprecedented convenience and accuracy in the user experience.
• ✅【Various Use】Indoor air quality monitor is indispensable for a family. Help for detecting gas and air pollution in homes, kitchens, bedrooms, offices, schools, cars, hotels, travel, camping, parties, etc., to always protect you and your family under healthy air conditions.
• ✅【Portable & Wide Application】 This Air Quality Tester For Home comes with a 5000 mAh battery. Can be plugged in or used wirelessly, easy to carry and move around, allowing it to quickly switch between different environments for air quality testing. Can be used in living room, bedroom, office, hotel, car, hospital, school, factory and other places, it's very convenient. This stylish looking Air Quality Monitor Indoor helps users maintain a healthy and comfortable indoor environment.

This Prefessionall Indoor Air Quality Monitor, 5 in 1 Portable Smartair Quality Tester for CO2 | TVOC | HCHO | Temp | Hum for Home Cars Plants and Pets So On（White） is a top choice in . Customers appreciate its quality, performance, and value.

• ALWAYS-ON AIR QUALITY SENSORS: WiFi connected indoor air quality monitor measuring radon gas, PM2.5 (air pollution detector), carbon dioxide (CO2), VOCs (airborne such as kitchen gases, fumes and cleaning products), humidity, temperature, and air pressure. The monitor requires the Airthings app to function. Operating Temperature 4 to 40°C / 39 to 104°F.Sensor type: Electrochemical
• ACCURATE DIGITAL RADON DETECTOR: Radon is the number one cause of lung cancer among non-smokers and kills more than 6x the number of people than home fires and carbon monoxide poisoning combined.
• SMART AIR QUALITY MONITORS YOU CAN TRUST: With 15 years of experience in indoor radon and air quality monitoring, Airthings has established trust among over 1,000,000 users who rely on its smart monitors for understanding and controlling their air health. An account is required to use the device, which only requires providing your email and name.
• CONTINOUS MONITORING: Check your live data anytime and receive timely air quality notifications wherever you are. Track pollutants and contaminants before they become a problem with this always-on indoor radon gas, VOC, CO2, PM2.5 air quality monitor. The monitor and app both require internet access, with data saved securely in the cloud for seamless tracking and analysis.
• FREE & FRIENDLY APP: Use the Airthings app to check current air quality readings and analyze trends over time. Get timely notifications and tips to improve your air. Check your local pollen forecast with data from Breezometer.

• BREATHE EASILY: Aranet4 CO2 meter measures CO2 levels, temperature, relative humidity, and atmospheric pressure in real-time, empowering you to make informed decisions for healthy ventilation. No wonder it's the top-rated indoor air quality monitor in Amazon's CO2 monitor segment!
• CABLE-FREE: The power-efficient e-ink display guarantees an extended battery life of up to 4 years for this wireless air quality monitor, ensuring worry-free monitoring without the hassle of cables and cords.
• EASY-TO-USE: The color coding, prominent CO2 number on the display, and optional buzzer of this air quality meter alert you when the CO2 concentration becomes too high.
• FREE & INTERACTIVE APP: A smartphone application for viewing and analyzing up to 90 days of historical data from your indoor air quality meter, complete with user-friendly graphs.
• PREMIUM QUALITY: Aranet4 carbon dioxide detectors use nondispersive infrared sensor (NDIR) technology for the most precise and reliable CO2 measurements. Made in the European Union.

• Save up to 26% per year on heating and cooling costs. ENERGY STAR certified. Included SmartSensor (50 dollar value) adjusts the temperature in the rooms that matter most to reduce hot or cold spots to keep you comfortable. Compared to a hold of 72°F.
• Built-in air quality monitor alerts you to poor air quality, provides tips on how to improve it, and reminds you when it’s time to change your furnace’s air filter.
• Premium materials and advanced engineering mean a large, vibrant display with a cinematic interface, a timeless design, and next level occupancy sensing.
• ecobee Smart Thermostat Premium is a complete home monitoring hub that includes built-in smoke alarm detection and alerts to possible break-ins when your system is armed. Get notifications during sudden temperature drops that could cause damage. ecobee Smart Security plan required
• Comes with a smart speaker and your choice of Siri or Alexa Built-in. Control your home using the power of your voice and listen to your favorite Spotify playlists and podcast through your thermostat’s speaker. Apple home hub required to enable Siri on Smart Thermostat Premium

• 【Multifunctional & Easy to Read】Since clean air means a lot to every one. Indoor air quality monitor offers accurate monitoring of PM2.5,PM10,CO2, HCHO, TVOC, time,temperature and humidity, all displayed on utral-high definition color screen for people easy to identify and read. With its convenient design, you can monitor the environment at any time and it efficiently measures 8 crucial indexes for evaluating air quality.
• 【High Accuracy & Fast Refresh Data】Equipped with a fast-responding and sensitive high-performance chip. Adopt high-precision infrared (NDIR) sensor technology for the CO2, PM2.5,PM10. Electrochemistry sensor for the HCHO and TVOC. The 5 readings refresh ever 1-2 second. Compare with the common sensor, it is more sensitive, accurately and stable.
• 【100% Quality Assurance】We are very confident in the quality of this portable 9-in-1 air quality monitor, and provide 12 months warranty or refund for it. Please feel free to reach us if you have any questions about your purchase. We will solve your problem within 24 hours.
• 【Long Battery Standby】 AIROASIS Air Quality Detector built-in 2000mAh battery and packed with USB charging cable. It can be used continuously for about 16 hours after full charging. Do not use it when charging or in lower battery because the data may not so accurate. Built-in low power consumption processing chip, can carry on long time uninterrupted monitoring to air quality. It will always take care of you and your family health.
• 【Wide Application】A hanging hole is designed on the back of this portable Air Quality Detector so that you can hang it up to the wall for easy viewing. The indoor Air Quality Detector for grow tents is ideal for use in grow rooms, offices, kitchens, schools, kitchens, school cellars, and cars.

• 【16-in-1 Air Quality Monitor Indoor】Experience the ultimate indoor air quality monitoring with our 16-in-1 Air Quality Monitor, offering real-time detection of 9 key parameters including CO2, PM2.5, PM1.0, PM10, HCHO, TVOC, Temperature, Humidity, AQI, and Time. With 7 distinct AQI alert buzzers, this air quality tester ensures your family breathes with ease
• 【Real-Time AQI Alert Buzzers】Our air quality monitor provides real-time monitoring and alerts for pollutants like CO2, PM2.5, PM1.0, PM10, HCHO, TVOC, Temperature, Humidity, and AQI, with 7 distinct alert functions. Stay informed with clear alerts and rest easy with a mute button to silence alarms. Your health and comfort are our priority
• 【0.001 Accuracy Ultra-Precision Air Sensing】Engineered with advanced multi-sensor technology and an enhanced design featuring more air holes, this air quality sensor delivers unmatched accuracy down to 0.001 units. It keeps you informed of the minutest fluctuations in air quality, enabling immediate action when needed （Please note: Avoid interference from perfumes and other odors when using）
• 【Easy Time Adjustment】1.Switch Time Format: Click the “Time button” to toggle between 12/24-hour format. 2.Set Hours: Long press the “Time button” to enter setting mode. Use the “Alarm button” or “Brightness button” to adjust hours. 3.Set Minutes: Click the “Time button” again. Use the “Alarm button” or “Brightness button” to adjust minutes. 4.Confirm: Click the “Time button” to save settings.
• 【Quick °F/°C Switching】Switch between °F and °C units effortlessly by clicking the “Power button”

• Comprehensive Monitoring: Tracks CO2, VOC, AQI, PM2.5, temp, & humidity.
• Portable Design: Easy to carry for home, office, or outdoor use.
• Battery Powered: Convenient and wireless operation.
• Smart Features: Instant readings & alerts for air quality.
• User-Friendly Interface: Simple setup & easy data interpretation.

• PERFECT COMPANION FOR INDOOR ENVIRONMENTS:Committed to providing users with reliable and accurate air quality monitoring,and continue to promote scientific and technological innovation to improve the quality of the living environment.10-in-1 air quality monitor Use this high-precision smart sensor,Real-time detection of multiple types of air pollution（CO2,VOCs, CO,AQI,PM2.5 & PM10,Formaldehyde）Protect the health of family
• RELIABLE TEST RESULTS:Including highly sensitive PM2.5 laser sensor and formaldehyde sensor.10-in-1 indoor air quality monitor provides accurate and reliable air detection,track pollutants and contaminants before they become a problem with this always-on indoor
• LARGER BATTERY CAPACITY:With a powerful 5000 mAh rechargeable lithium polymer battery, you can unplug the air monitor and easily move it to monitor different rooms in your home or office with a standby time of more than 12 hours
• KEEP YOUR BREATH GOING:The CO2 detector is perfect if you are near a wildfire – or if you depend on old or wood powered appliances in your home. 10 in 1 is also a carbon dioxide monitor and guards your air quality by letting you know when particulate matter and VOCs are unusually high,When the CO2 exceeds 2000, the color will change to yellow to red, and the buzzer will give a warning
• ACCURATE FORMALDEHYDE DETECTOR:Formaldehyde pollution is very harmful to the mucous membranes of the eyes,nose and throat,and needs to be paid attention to at all times.We works tirelessly to ensure the overall quality of every indoor air quality monitor through rigorous testing