Any Homescent Lovers Here?

Hi All. Good Evening. I am a very good avid Homescent Lover. I always want my home to smell pleasant. Have tried from incense sticks to diffusers. Currently I am looking for a 'continuous release' electric aroma diffuser. I know that the quality of oils play a major role here. Sometimes even thinking of making a one by myself (DIY. Possible?). Is anyone here have a continuous release aroma diffuser at their or an HVAC one at your office? My budget is 100$ Max. Thanks for reading. Please reply. Thanks.