WoodWick Pure Comfort Reed Diffuser by WoodWick. Save 1 Off!. $14.89. Patent-pending crystal technology combined with vibrant colored oils create an elegant, one-of-a-kind diffuser that performs as well as it looks.. Crystal reed diffuser fragrances your home for up to 4 weeks or more.. Curl up with this comforting scent of line-dried linens with hints of sheer fruits and satin musk.