This is a brand new xTool SafetyPro AP2 Smoke Purifier for Laser Engraver, SuperCyclone System 6-Layer Filtration for Dust & Odors, Quiet Operation for Diode Fiber Laser Engraving Machine and CO2 Laser Cutter. It has never been out of the box I bought it thinking it was a whole house air purifier and now im stuck with it and I can't return it.