Guest guest Posted October 30, 2010 Report Share Posted October 30, 2010 From what I read, the commonly used methods of testing........plates or air sampling......are outmoded. Many people I know who have hired " experts " have regretted it because they were left with a more serious problem than they began with. I don't know what the " right " method is, but I would be very careful. BTW, I am having the same problem. I have had to shut down and seal off my central heat and air system because a tech failed to hook up a return hose a year ago. I used window air-conditioning units this year. I live in a vhot climate, and I will heat with electric heaters. I am trying to decide what to do. Josie Quote Link to comment Share on other sites More sharing options...
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