There’s no end to the proliferation of home items one can purchase in an effort to keep it clean and safe; air purifiers, humidifiers and similar items have all become de rigueur. Many are adding air quality monitors to the list, for good reason: According to recent HuffPost reporting, indoor air pollution can cause problems with both physical and mental health, making it crucial to be aware of the invisible contaminants that may be floating around your home’s interior.Kenneth Mendez, President and CEO of the Asthma and Allergy Foundation of America, told HuffPost that the average air monitor measures the presence of airborne pollutants. “These include particulate matter from smoke and dust, gases, including carbon monoxide, and volatile organic compounds (VOCs) from household products.” VOCs are potentially harmful gases emitted from products such as paint, certain cleaning chemicals and treatments on furniture and carpets. These monitors may even aid in the detection of a particularly pernicious home invader: mold. Rod Harrison of Harrison Home Inspection, explained that “[while] most consumer air quality monitors cannot identify actual mold spores, they serve as an invaluable early warning system by tracking the specific environmental triggers — primarily humidity and moisture — that allow mold to grow.”If you’d like to stay abreast of the air conditions inside your living space, we’ve rounded up five air quality monitors that are highly-rated and well-reviewed, so you can be alerted to any warning signs before it’s too late.AmazonA popular Airthings radon and air quality monitorHarrison is most familiar with Airthings' various air quality monitors, like this one. It's primarily used as a radon sensor, but can also accurately and reliably detect carbon dioxide and VOCs, like kitchen gases, fumes and cleaning products, along with humidity and temperature, key factors in determining if your home is a breeding ground for mold. It pairs with an app on your phone and has easy-to-read results. Promising reviews: "Saved my life, everyone needs to have this device in their house to know what’s going on with the air they are breathing and trust me it will solve lot of health issues." — nikhil gaware"Love this thing. I didn't realize just how important air quality was until I read somewhere that we typically have too much CO2 built up in our homes, especially in our rooms at night if we have our door shut. Higher CO2 levels effect sleep quality and brain function. With this monitor, I'm able to determine if I need to crack my window, turn on my dehumidifier or run a fan to cool down the room. It tracks Temp, Co2, Humidity and more. But the first three are what I pay most attention to. I have a separate radon detector. (Ecosense RD200 RadonEye) that works REALLY well BTW." — SABPAmazonA smart air quality monitor that pairs with AlexaThis Amazon Smart air quality monitor was designed to track and measure particulate matter, VOCs, carbon monoxide, humidity and temperature, and the intuitive readings in the app couldn't be easier to understand. It pairs with Alexa home and all your Alexa-enabled devices, so you can set routines with air purifiers, dehumidifiers, fans, and more when indoor air quality changes and you want to prevent mold growth. Promising reviews: "Nice to know how the air quality in my house changes. Easy to set up. Pretty informative. It can pick up air quality changes after the oven goes on or chemicals get sprayed on counters." — Dominic"Honestly… this thing is amazing. I bought it and it’s pretty sensitive. It turns different colors to indicate severity of what it detects. It is a lifesaver. I have an open concept house so I put it in the center of the first floor. After a few months It detected a gas leak from my furnace. Also detected a near electrical fire. I saw the device trigger from the app and smelled the burning. It was subtle to the scent. Finally tracked the smell to a plugged in phone cable where the tip was broken and started melting to the carpet. Could have easily burnt my house down if I didn’t have this device. Buying 2 more for other parts of the house." — KnoxAmazonA popular wireless indoor air quality monitorGet real-time information on important readings with this highly-rated monitor. It measures CO2 levels, temperature, humidity and atmospheric pressure. It has an easy-to-read display screen in addition to a smartphone app that can give you immediate readings as well as historical data. However, it doesn't monitor VOCs, since it is primarily used to measure carbon monoxide levels, but reviewers say it's worth every penny and a great portable option. Promising reviews: "I love this device and bring it everywhere with me. The display is intuitive and easy to read, easily connect by bluetooth to my phone and other devices, the responsiveness can be updated to short intervals for constant monitoring room-by-room or set to longer time durations if the unit will be stationary in one room for a while. Easily switch between metrics. A+ for indoor air quality awareness!" — David S. Eldridge"Will bring you up to speed at the drop of a dime. This item is excellent when it comes to bringing you up to speed with the quality of the air in your space and surroundings. I have taken it to verify the quality of air, whether I'm working in the field or I am working in whatever "brick and mortar." — VOAmazonAn air quality monitor designed to be as accurate as possibleMeasuring temperature, humidity and particulate matter, this smart sensor is accurate and convenient. It has a switchable display that includes a clock and an LED indicator that displays four levels of ambient air quality. It connects to wifi and pairs with a smartphone app that includes daily graphs and historical data. Promising reviews: "Love this! Love being able to check my house temp and air quality when I am away. It stays connected, easy to set up and does what it says." — Lorie Hutton"Great tool! my boyfriend and i love this!! it’s so helpful to see what the air quality is. even with different candles, it helps me know what im actually breathing in. we also have the air purifier, so we love the duo!" — avAmazonA highly-rated Necto sensor with two years of cellular service includedDesigned primarily to help keep pets safe, this sensor can be used to monitor temperature, humidity and power outages and keep all living beings safe. Because it isn't dependent on WiFi, it can provide monitoring even when there's a power outage, thanks to a built-in battery and cellular technology. You'll get instant alerts on your phone if there is any kind of disconnection or batter power is low. It's easy to set up, has customizable settings and alerts, and works with any standard wall outlet. Promising reviews: "I purchased the Necto cellular temperature monitor for our weekend place at the lake to monitor the crawlspace over the winter for potential pipe freezing temperatures and power outages. The setup was very easy and it’s been working flawlessly. I like that you can set the alerts for a range of temperature and humidity levels, and for loss of power. Highly recommend this device." — Doug Hopkins"Reliable. I highly recommend nectar’s temperature monitor. I bought it to make sure my dogs are safe when they’re inside my trailer in case the air conditioning goes off when I’m not there. I get alerts via email and text immediately, within seconds, of either the power going out/unplugging the device or temperature issues." — Amy H.Close Trending In ShoppingMore In Shopping