Thought this may be of interest to some here' http://www.epa.gov/epahome/other2_0824.htm
Thanks Sis for the info. i use perlite on my plants a lot.i buy them in bulk, but prior to using, i cut a small hole to fit the hose and fill with water. the water aids in preventing to inhale those powdery stuff. use perlite mostly on flowering plants. thx again... ma vie
I had no idea I used a lot of it last summer, thanks for the information.
Last night in mixed up my own seed starter mix. I used 7 bags of vermiculite. I did it in the house with my little girl helping me mix it with her hands. Wish I had read this sooner....