Nano-scaled synthetic pigments, which are attached to the surface of an inorganic carrier pigment, are used for the production of a paper with excellent electrophotographic print quality, silk gloss, high brightness and bulk, as well as good toner adhesion. This nano-hybrid technology has the great potential to improve the quality of printing and copy papers by combining the advantageous properties of both nano-scaled and macroscopic materials. In order to address possible health concerns, a new high precision measuring device (Nano Dust Tester – NDT) was developed allowing the precise detection of possible micro- and nanoparticle emissions from paper surfaces. All papers tested with this device showed no emission of nanoparticles, whether nanohybrid technology was employed or not.