You worry too much. They said "It;s NOT asbestos." What else do you want?

If the testing laboratory could not find evidence of asbestos fibers, then you can rest assured that it contained none.

Now the Fiberglas fibers that you may have made airborne is another matter, but I see no earthly reason for you to needlessly worry about this. Occasional and casual contact with respiratory irritants simply cannot be avoided in our daily lives; it's going to happen.

Now since the question of particulate irritants has been presented, then I offer this little bit of advice. Any repeated exposure to respiratory irritants is not a good thing, as our experience with tobacco smoke has soundly demonstrated. Don't smoke and you will be protecting yourself and your family right off the bat. Also, watch out for any industrial activity that has the potential to place chemical and particulates into the environment and into your water source. Hydraulic fracturing for natural gas is one such industrial activity that has the real potential to very negatively affect the environment and the health and welfare of people living nearby such operations and to negatively affect the climate of the planet on which we reside.

But, that is enough and I get down off my soapbox now.

Relax. if you had a sample of the product and a reputable lab said there was no asbestos, then you should not worry. The amount used in products was very high in the "Good Old Days," and not hard to detect. It's very distinctive.