Very clean device, used with care in a smoke-free, pet-free, and dust-free home. Features: Advanced purification technology with HEPA H13 filter capturing 99.95% of fine particles down to 0.1 microns High-efficiency dual filtration system 10 airflow speeds with remote control Functions as an air purifier and cooler simultaneously Add-ons: Additional carbon filter (one - unused – still in packaging) 2 new HEPA filters (unused – still in packaging) The current filters are working efficiently and have approximately 9 months remaining (depending on usage)