Look at the website and the description of the IAQ air collector. First problem is Live Pure stated they are a state certified lab? there is no mention of the type of laboratory certification. Are they NVLAP, AIHA EMLAP/IHAP/ELLAP, or A2LA or NRPP certified. does this certified lab have any NH state laboratory certifications for all the chemical entities they state there "YOGI" can collect. No mention if Live-Pure Inc. is certified lab. I would be very concerned with this glorified black-box approach air sampler. There is no description of the collection medium used for each type of IAQ targeted test? They stated that they can measure asbestos fiber. Assume they are doing a PCM lab analysis? What the calibration and QA on the air pump. As for the measuring radon with IAQ sample device, they must use some sort of special small charcoal adsorption device-passive?? I even wondering if they are sub-contracting out the samples to a real laboratory and they are a middle-man sample collector. Bottom-line major concerns with validity, accuracy of the measurements and exactly what they do with the samples collected. Where's the QA and lab credentials for this "certified" lab and glorified collection device? Concerning for unknowing public.