Oh noes, that study claiming that laser printer particles are dangerous is shaping up to be just as contentious as those studies proving that cellphones are/aren't dangerous. As you'll recall, the Queensland University study tested 62 "relatively new" laser printers from Canon, HP, and Toshiba and found 17 to be "high emitters" of potentially dangerous, ultra-fine toner particles. Of these, all but one (a Toshiba model) were manufactured by HP. As you'd expect, HP has issued a formal response courtesy of Tuan Tran, HP's vice president of marketing for supplies. Perhaps predictably after such a damning report, HP's response can be summarized as an attempt to both discredit and mock the research while standing behind the safety of their products. Tuan first ridicules the study by stating "the nature and chemical composition of such particles – whether from a laser printer or from a toaster – cannot be accurately characterized by analytical technology." He goes on to say that, "Testing of ultrafine particles is a very new scientific discipline. There are no indications that ultrafine particle (UFP) emissions from laser printing systems are associated with special health risks." HP does agree with the study's assessment that "more testing in this area is needed" and claims to be actively engaged in the process. Since HP's statement came our way via a PR agency and not HP's official news site, we offer you their complete response after the break. While it's tempting to label HP the Big Tobacco of the printer business, don't; it's far too early to jump to such conclusions. Still, with a press release like this, they're not making it easy on anyone.