best oil diffuser for large room

{"cid":"91215364","title":"Diffuser, Scent Air Machine for Home, Hotels & Commercial Use, HVAC or Portable Nebulizing Diffuser - Large Room Waterless Scent Machine","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/ca\/99\/96afcb79677aa577244e43a76bd7-200x200-1.jpg","attrs":{"Price":"Please negotiate","Brand Name":"Bxaroma","Model Number":"A300","Minimum Order Quantity":"please negotiate","Certification":"CE RoHS FCC","Place of Origin":"Guangdong, China","Payment Terms":"T\/T","Supply Ability":"2000 Set\/Sets per Month","Packaging Details":"Normal package\/OEM","Color":"Black\/OEM","Application":"Commercial","Noise":"<35db","Coverage":"3300 sq. ft","Control way":"App"}}