View Full Version : Air Advice IAQ Monitor
11-22-2005, 07:48 PM
Anyone familiar with this machine?
I read about it online not long ago and was intrigued by what it does. Today, a guy from CC Dickson came into the shop when I was there. He was talking to the boss about it, so I slowly moved in and joined the conversation. I mentioned I read about it online and we all talked.
He wants to sell or lease this unit to a company in the area. My boss mentioned he is very interested in it..and so am I. He would like to buy one. With it we can take readings of a house in the different rooms and monitor it. Especially when this can be done, 24 hours a day, with the difference in temperatures at different locations of the house. I said it would also be great to be able to use the machine AFTER work was done to help fix whatever it may be...humidity issues, air quality, whatever and see how much of an improvement there was. With this machine, there would be much more monitoring of the problem areas of the home.
Has anyone had any experience using it? And how has it helped?
Their are lots of equipment that has been out their for a longer time that do the same thing! I would not rush out to buy one before looking at all the info. We have some Q-track's and they work great! Plus if I do a walk through of a building I don't have to hold that ugly box.
01-04-2006, 12:51 PM
I haven't heard about this particular unit. I've researched and recommended a system from Aircuity that measures particulates, TVOCs, CO, CO2, Radon, and other gases on a continuous basis. The data is uploaded to a database and accessible to the facilities person on a real time and historical basis. You can find them on the web at http://www.aircuity.com, and they were at the last ASHRAE conference - I expect they'll be there this month.
Unless it can identify and distinguish between particles, spores and mold, it would have limited ability in identifying IAQ problems. No doubt it would still provide some usefulness.
01-04-2006, 01:16 PM
Actually the Aircuity system can do airborne mold sampling, but you need to send it out to a lab for growing. Reduced airborne particulate levels are seen as a good thing, especially in medical facilities. Industrial Hygienists usually do airborne and surface swabbing to determine microbial levels.
01-04-2006, 03:51 PM
I've used the Air-Advice and feel pretty comfortable interpreting the graphs.
It's not a bargain basement sort of monitor. It hooks up with 110v/telephone line. They download info and make it available via graphs and reports. Did I mention they're
Homeowner reactions will vary and some will be quite alarmed depending on the situation. I personally like it because I can drop it off (hooked-up) and watch the info
compiling for about 72 hours, get a final report, then retrieve the monitor and go over the results with HO.
It's been marketed in our area primarily to sell IAQ upgrades. I seem to attract hyper-sensitive types I guess.
01-05-2006, 03:30 PM
I use the Air Advice monitor often. It is a great tool that can alert you to potential IAQ problems in a stucture. While it is simply measuring particulate and not distinguishing between pollen, dust spores, etc....it can let you know that further investigation needs to be done. I really like the graph formatthey use. You can even break it down by the hour. If I have one of these monitors in someone's hiome for a week, I can usually tell what time they take their shower, cook breakfast, return home for lunch, cook dinner and let the dog in. It is a very useful tool. Just know it's limitations.
As for the post above that mentions a similiar monitor that can actually take air samples....I would beware of using one of these things for that type of testing. I would be concerned with the calibration and air flow rates this thing was using. What type of media is used to collect the samples? This just sounds screwy to me.
01-05-2006, 05:24 PM
Hello parkercie. Most air sampling units use an agar growth medium in a sterile petrie dish, just like back in high school. The better designed ones use a direct impact system with a specific amount of air drawn onto the plated dish over a specific time period. Remember, repeatability is the key to any good experiment. Same time, same location, and reduced variables as much as possible when doing measurements. The difficulty with any air sampling is that air is a complex system subject to multiple changes. Aircuity's system can be seen at http://www.aircuity.com - but the microbial sampling system is limited by technology. Lab has to grow the stuff in the case of bacteria and mold. Viruses are even harder to measure, especially given their small sizes and how they reproduce! The better that we understand how the whole system interacts, the better we can address the underlying root causes of the problems.
syntropicsystems Very few air samples our taken with agar dishes these days. They are not as accurate as other methods. There are cases that agar dishes are used for finding different molds but not often. I took a look at the aircuity web site! Many products like this on the market. These will be a very hard sell to most company's unless they have deep pockets.
01-29-2006, 08:19 PM
Hey guys...thanks for the info! I forgot about this thread! :D
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