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Apple HomeKit ecosystem

Eve Room sets itself apart by monitoring air quality. The ability to detect VOC’s is what sets it apart from other sensors on the market. What are VOC’s?  It stands for volatile organic compounds. That is a mouthful isn’t it.  When I first started this review, I was a little worried. I was worried, I may find some odd compound in my house that would lead to me having to tent it up and clear it out.

VOC’s are compounds that are all around us. They are released when we breath, perspire or digest food.  They are also released from common items in our homes.  These can be carpet, paint, furniture, printers, perfumes, cleaning products, tobacco smoke and I am sure there are a whole bunch of other sources.

What can VOC’s do? They can cause eye irritation, headaches, tiredness, dizziness, aches and pains.  VOC’s  have been known to cause a condition known as sick building syndrome.  Traditional home sensors, while they detect smoke and CO2 are not on the hunt for levels of harmful VOC’s.

Eve Room is equipped with a MEMS sensor to measure VOC’s. It is the MEMS sensor ( Micro-Elector-Mechanical-Systems) that detects and measures VOC’s like alcohols, aldehydes, ketones, organic acids, amines as well as aliphatic and aromatic hydrocarbons.  Typing VOC’s is one thing, saying them is a whole different story. You on your own there.  The Sensor used in Eve Room is produced by AMS a German chemical sensor company.  Elgato displays a link to their site should you want more information on the exact items measured.

I tracked it down and below is a table on the Various VOC gases measured by Eve Room. It also lists, common places that they come from.

VOC’s measured by Eve Room

Eve Room Contaminants

Eve Room has its work cut our for it. Monitoring your home for all types of gases listed here.

After having the Eve Room monitor our air quality for a a couple weeks, I noticed something peculiar. I noticed that every once in a while there was a large spike in VOC’s in my house.  The first time I saw this, I was really concerned.  I was not sure what could have caused it.

I immediately looked through the Eve app, which gives you a detailed graph of your air quality.  Is it good, fair, bad.. etc..   You can scroll back through its history and see the trends. I then noticed that there always seems to be a spike on Sunday evenings around 6pm.  There were also spikes on a couple Saturday mornings.

When I open the Eve app, and I go to the living room and select the Eve Room sensor, I can see the air quality, temperature and humidity.  The data displayed is clear and you have markers on the graphs to show the time of day.  You can also look at the data, hourly, daily, or weekly.  I scrolled thought the charts and noticed that when I had a spike in VOC’s the temperature was usually high as was the humidity.

As most households are, we are a busy group.  There is usually a sporting event,  tournament, or a practice to get to.  So weekends can be a little hectic.  

The one thing we do as a family is Sunday evening dinners.  As I  looked through the data that Eve Room gathers, it became apparent.  The spikes in VOC’s that I was seeing always appeared when one of us was using the kitchen.  Not that we are horrible chefs mind you.  We may have needed to clean the oven.

There was a huge spike from one of my boys burning cookies.  That one even set off the fire alarm.  There were spikes from cooking bacon, pizzas even corn dogs.  There were a couple times that I noticed there was no spike.  As we put together the pieces, those were days we used the grill outside or ate out.

You can see in the screen shots below that Eve Room gives you a good view of the data it tracks. Allowing you to view it hourly, daily, weekly or monthly.  You can also compare one day, to the previous day.  I found I could do the same with weeks and months.


Sensors in the Eve Room provide a good amount of data.  You can compare the other sensors too.  I could see a lot of uses for sensors like the Eve Room.  You could place one in your wine cellar, then you would have a running monitor of the temperature and humidity.  Knowing the air quality in there sure would not hurt either.

One thing that is important to note is how the data is shown in the Eve app. You will note that while you can see your VOC levels, there is no breakdown of each measured VOC. The data is always displayed as a total level.  This would be of concern if the reading is consistently high, as you wouldn’t be able to see which measured VOC was the culprit.

Eve Room can be a good extension of your thermostat.  If you have 2 or 3 of them placed around your home, you could use them to automate your heating and cooling. Eve Room is able to trigger other HomeKit accessories on temperature. This allows them to be signal to your HomeKit enabled thermostat when parts of your house reach a certain temperature.  Everyone has that one room that is always to warm.. or way to cold.

New parents, may want to place Eve Room in the vicinity of the baby, just to keep an eye on the temperature and humidity of the room.  Not to mention VOC’s.


I am pleasantly surprised by the depth of data that they Eve Room provides. To  be able to look at the air quality, temperature and humidity on an hourly bases for the past few weeks is a lot of data.  Then I have the ability to compare it by days and weeks.  If your a data person, you could spend hours pouring over it.

Now that I have covered the sensors and what makes Eve Room special from all the other sensors out there. On the next page I am going to go into the software.  I will take a look at some Eve app features as well as how the Eve Room fits into the Apple HomeKit app.

Next Page :: Eve Room – Apps and Summary
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