This air quality monitor is an exceptional piece of technology that is a must-have for anyone who wants to ensure that the air they breathe is clean and healthy. Its professional-grade design and wide range of features make it an ideal tool for both personal and professional use.

One of the standout features of this monitor is its ability to detect a wide range of pollutants, including PM2.5, CO2, AQI, temperature, and humidity. It provides real-time air quality data, as well as historic data, which makes it easy to track changes in air quality over time. It also offers air quality forecasting, which can be incredibly helpful in planning outdoor activities or adjusting your indoor environment as needed.

Another great feature of the IQAir Air Quality Monitor Indoor is its Swiss design. It's well-made and designed to last, which means that you can rely on it to provide accurate air quality data for years to come. The monitor is also incredibly easy to use, with a simple interface that makes it easy to access all of the features and settings.

The monitor is also incredibly versatile. It's compatible with a wide range of devices, including smartphones and tablets, which makes it easy to access your air quality data from anywhere. It also offers IFTTT integration, which means that you can set up automated alerts and actions based on your air quality data.

Overall, I'm incredibly impressed with the IQAir Air Quality Monitor Indoor. It's a top-quality air quality monitor that provides accurate, reliable data on a wide range of pollutants. Its professional-grade design and wide range of features make it an ideal tool for both personal and professional use. I highly recommend this product to anyone who wants to ensure that the air they breathe is clean and healthy.

Easy to set up, works very well.

Well, I've had my IQAir AirVisual Pro for a few days now. And I just love it.

It is mainly designed to be an indoor sensor, and that's how I'm using it. (You can actually use it outdoors, but then you don't get indoor readings.) You can monitor outdoor Air Quality by hooking it up to the internet. There are several local sensors that folks nearby me (just a couple of miles away) that are available, or there's the local Air District that is also just 2 miles away. All of these are available using the IQAir AirVisual App. The App is free, and you can monitor any number of Air Quality sensors worldwide that you want. I highly recommend the App just for those reasons.

But where the Air Visual App really shines after you add the Air Visual Pro to the app. You can then monitor the outside Air Quality and inside air quality either on the app, or on the Air Visual Pro screen. It will tell you if the air quality is better inside or outside, and what actions to take, like open or shut windows, or don't got outside, or outside activities are fine. The Air Visual Pro displays CO2 and PM2.5. It also shows the US AQI readings. China AQI is another option.

The PM2.5 readings seem accurate, so I can use it to make decisions about closing up inside, and using air filters if needed. It's really an amazing device. Also there is a significant Knowledge Base on the IQAir website that gives out a lot of extra information about the Air Visual Pro.

The one drawback, is that it costs a bit, $269, but part of that cost is that is has its own screen. Having it's own screen makes it more usable, you can just look to see how the Air Quality is both inside and outside, and get the direct recommendations right one the device.

It's a five star winner.

This is super-accurate for PM2.5 and CO2! Easy to use! I don't write a lot of reviews but I just had to. This is our 3rd since it was first released by the manufacturer (an excellent manufacturer of extremely high-end medical grade air filtration machines we have used for almost a decade). I used a different brand of air monitor before which was much harder to use and maybe a bit less accurate.

It also connects to see a worldwide network of readings that I can see on a map and use to assess real time air quality in another neighborhood to decide to go there or not - great during the CA fire season when you have asthma!

Downside is just that it does not measure some things: PM10, PM1 or smaller, VOCs, ozone. I generally find that under normal conditions PM2.5 gives me a general feel of the dust levels in the air, but of course some things can slip through that measurement size.

Of all of those additional measurement abilities I'd most want a VOC meter added. The discontinued air monitor I used to use also had a VOC meter and I did find that useful. Sometimes I feel nauseous or get headaches due to high VOCs. Sometimes the CO2 also rises when the VOCs rise (because it's due to not enough ventilation/fresh air coming in), but not always. So being able to detect times of low CO2 but high VOCs was helpful for assessing the health of the indoor environment and changing things to lower the VOCs. I thought this was going to be a huge disadvantage, though, and it turns out to only be relevant in rare situations, because the CO2 almost always tracks with VOCs anyways, so CO2 serves as a proxy for VOCs just fine most of the time.

Overall, I love this thing! Love it's clear display, accuracy, and simplicity! I keep it on all the time, usually without pairing it since the screen is so clear even from across a room that I don't need it on my phone to see what it's telling me about my current air quality.

It's has some nice features and seems to correlate to outdoor AQI readings from weather on AQI compared to users of IQAir who share their results. It's fairly close. I am using the accuracy of this meter to have N ERV system installed to reduce the outrageous amounts of C02 in my home especially after baking and cooking. My HEPA filter (Rabbit Air) efficiency in the room can also be measured. I'm liking this meter so far! It also shuts off display as to keep life of u it long on display, but still send me data to my IOS App. Nice unit!