With the levels of common indoor air pollutants running from two to five times higher than outdoors, you'd better believe indoor air quality is nothing to sneeze at. That's why HP voluntarily designs and tests its printing systems to meet the strictest eco-label guidelines. When you choose Original HP toner cartridges, you help to maintain a healthy indoor office environment. In this brief you'll discover the reasons why HP is listed as one of the world's most sustainable corporations. And why buying Original HP toner cartridges (and only Original HP toner cartridges) will help everyone in your office breathe a lot easier. Contact us to select a flexible toner cartridge purchasing plan.