The AccScent HD Home Fragrance Solution uses dry air diffusion to effectively scent residential spaces. Similar in size to a small kitchen appliance, the AccScent HD is a heavy-duty scenting system designed specifically for those who value a premium fragrance experience in their home.  Delivering a consistently fresh and natural scent for three to four weeks (depending on coverage area) per cartridge, the AccScent HD is the high-quality choice of home fragrance fanatics.