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Originally Posted by
Deleted 10089a2
On the knauf earthwool data sheets it cites studies that the their glass/ mineral wool ( I can't remember which right now) dissolved in lungs/ body before it can cause long term issues. Check it out online.
Glass is silicon which is a mineral. The of permanence in lungs is potentially an issue with organic materials like cotton. It is like Pepsi certifying their soft drinks are cholesterol free. It is a non-issue to begin with.