Hello.
New to Inkscape, but not to vector graphics, I've stumbled upon a problem. When blurring objects, everything looks just fine on screen, but blurred objects get rasterized with poor resolution when printing the document. So I guess my question is, is it possible to set the DPI for rasterized objects either globally or per document?

I would save a copy as pdf. The dialog has a rasterize dpi setting. Then print from the pdf. 

Mostly bulletproof on the printing side, but PDF conversion does not like masks in the svg document.