Originally Posted by nixie
Just please make sure are in a well ventilated area and take frequent breaks from the work space. The headache from the fumes is one you won't soon forget!!!
Rather, only do this in a well ventilated space. Either do it outside on a breezy day or do it in a commercial fume hood. When you melt foamed polystyrene (blue or pink extruded foam or white bead foam) you are releasing Hydrogen Cyanide Gas into your environment.
That is the same gas that was used in the Nazi deathcamps and was used in the gas chamber in some of America's more notorious prisons.
remember that if you can smell the fumes, you are being poisoned. Melt foam with care