After conducting this experiment, I came to the conclusion that fabric softener does increase the flammability of most fabrics, but only by a small margin.

    Some fabrics actually became less flammable after being treated with fabric softener. The only fabric that I would call an exception to this is cotton flannelette. The flammability of cotton flannelette was increased significantly. In fact, the cotton based fabrics all were significantly increased, more so than the other types of fabrics.

    In conclusion to my previous conclusions and the rest of this project, cotton based or lightly woven fabrics generally should not be treated with fabric softener. Although fabric softener does increase the flammability of most fabrics tested, it actually decreased the flammibility of a few fabrics, and some did not even appear to be affected.