<prompt> Human: Anyone have any experience with self testing? Im getting a home inspected before I purchase and since its a multifamily with one main building and a duplex detached itll cost me 240 for a professional inspection. Is this ridiculous high? Should I request to do it myself? Whats the timeframe on getting results back?  <response>: Radon takes a long time to test for. The short-term kits are usually 4 days of collection plus lab time plus mailing time to the lab if its not local. The long-term kits, which give you a much more accurate measurement, are on the order of 3-12 months. Either way will cost around 50.If you actually buy the house and radon is a concern, youll want to buy an actual radon monitor, which is in the 200-ish area IIRC. 