If you go to the Microair.com website Did you try that web site. It goes to an air quality company.
There is a time for building and a time for flying, and the time for building has long since expired. See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2004 - KR Gathering See our EAA Chapter 242 at http://EAA242.org