Pure is an Hypoallergenic HEPA Air Cleaner that makes cleaner, fresher, healthier and low humidity air for the library to give the books the best environment they need. 'Pure' design keeps the classic lines of the library and assimilated on the top shelf. The long lasting, cleanable HEPA filter removes up to 99 percent of air pollutants and can be replaced easily from the front panel. 'Pure' includes an ionizer without Ozone which releases negative ions into the air to lower the humidity, and 2 Hypoallergenic UV LED lights. As a green device, 'Pure' uses solar energy with a 16V, 5W indoor solar panel on the devices top.