Atmofizer USA LLC warrants that your Atmofizer A500 Model One will be free from defects in material or workmanship for fourteen (14) days from the date of purchase provided that the device has not been disassembled or altered and followed regular scheduled maintenance. Within fourteen (14) days from the date of purchase (with valid proof of purchase), if a defect exists, Atmofizer will repair or exchange the product with a product that is new or which has been refurbished and is at least functionally equivalent to the original product without charge, excluding shipping and handling. The Atmofizer Limited Warranty covers normal use only and does not cover any use outside of Atmofizer’s recommended conditions. Atmofizer Limited Warranty is non-transferable.