2014 model AV4000 never used. Comes with an extra filter and 4 filter wraps all new. Retails at $1500. **** SEE ALL THE SPECS AND TESTIMONIALS AT https://filterqueen.com/defender.html For 90 years, FilterQueen® has been focused on setting new standards in clean. Today, the FilterQueen®Defender® Portable Room Air Purifier uses its proven technology to create a cleaner, healthier home environment that is protected from harmful pollutants such as pollen, mold, bacteria, viruses, pet dander, dust mites, smoke particles, cooking odors, and airborne chemicals, without producing harmful ozone. Lifetime Perpetual Warranty Built in the USA Used in hospitals worldwide Filters 99.99% of particles down to 0.1 micron Removes hundreds of noxious gases Effective in small to large rooms Better-than-HEPA Filtration Proven Effective through Laboratory Testing Recognized by the FDA as a Class II Medical Device Energy Efficient Quiet, 24-hour Operation 3-speed Programmable Operation Health-Mor's QMS is Certified to ISO Standards (ISO 9001:2008 and ISO 13485:2003)