Near the end of the last century, I worked in a computer room which had a halon system. The company spent $7,500.00 for a test. They placed paper in several waste cans and lit them, and fired off the halon dump. The halon comes out at very high pressure, and blew all the dust and papers all over the room. We were standing outside the automatic door into the computer room. The halon formed a cloud about four feet high and triggered the automatic door opener which allowed the halon to fill the lunchroom. The sales rep said that we could stay in the computer room with him when the halon dumped, and that it wouldn't hurt us, but we said No thanks. It did put the fires out, but they never retested the system after that. After veiwing some of the motor home fire videos, it looks like a good option.