A creepy full-face mask that purifies the air you breathe while also completely hiding your identity has raised more than £110,000 in a Kickstarter campaign. The BLANC mask is the brainchild of US developers, and features two high-efficiency, reusable and replaceable HEPA filters that each last for two weeks. The two sides of the mask, held together by magnets, come apart along a vertical split to allow them to be replaced -- with one of assorted colour and texture options. Wearing a BLANC, the designers said, serves to prevent identification by facial recognition software and'provides ultimate privacy in the digital age.' Future updates will include further features to the same end -- including a plug-in audio modulation component to mask the sound of your voice. The mask is available to pre-order on Kickstarter, with prices starting at £59.