Alen Corp.'s AirMD is the first lead-free air purification product certified by both the EPA and the US Department of Energy. The AirMD comes with four speeds, a high-efficiency particulate air (HEPA) filtration system, UV lamp set that lasts three to five years, an ionizer, and a 24-hour programmable timer. With its modern design, the AirMD is offered in bamboo green or white, and is recommended for areas up to 400 square feet.