Hamilton Beach TrueAir Air Decor Air Purifier HEPA-grade: 99.9-percent effective down to 3 microns; captures dust mites, mold spores, pet dander, pollen Low maintenance: simply toss "filter" bag and replace approximately every 6 months Coverage: 240 square feet Variable speeds: pick the speed that suits your needs, from Whisper Quiet to Quick Clean LED's: provide an ambient glow Dimensions: Height - 37 inches Length - 8.75 inches Width - 8.75 inches