Check the listing for details. WiFi Smart HVAC Scent Diffuser Machine Essential Oil Aroma Diffuser New. Color: White, Condition: New. Listed at 164.82 USD. This Is a New Essential Oil Nebulizing Diffuser Scent Machine. The Fragrance Diffuses Through Atomization, Which Helps To Reduce Dust, Pet Dandruff Allergens And Other Non Biological Allergens In The Air. Without Water, It Can Stand Freely Or Be Installed On The Wall For Hvac. Specification: Color: White Material: Sheet Metal, Aluminum Voltage: 12V Power:15w Working Frequency: 50 / 60 (Hz) Capacity: 1000ml Coverage: 3000-4000m³ Decibel Value:≤45dba Weight:4kg Size:28*12*28cm Features: 1.Lcd, Touch Key 2.Nano Atomization, Strong Diffusion Ability 3.Easy To Operate And Install 4.Super Large Area Coverage Package Included: 1x Diffuser Scent Machine Note: -Please Allow 1-3Mm Differs Due To Manual Measurement.