PureSpa Deluxe is a powerful ultrasonic aromatherapy oil diffuser with a large 140 ml (4.75 oz.) water tank that provides up to 10 hours of steady mist without the need for a refill and then safely shuts off when the water tank is near empty. PureSpa Deluxe distributes a gentle, cool mist throughout your home, office or spa to refresh the air naturally. Adding 3 to 5 drops of certain 100% all-natural essential oils (not included) to the water tank of your PureSpa Deluxe can help create a more comfortable atmosphere for people suffering from a cold, nasal congestion, allergies, asthma and more. The ionizer produces "happy feeling" negative ions that help lift your mood, relieve stress and strengthen your immune system. PureSpa Deluxe is backed by Pure Enrichment's industry-leading 5-Year Warranty so your satisfaction is 100% guaranteed. Features: Frameless Shape: Oval Use: Indoor Measurements: 8.5 Length/Inches, 5.75 Width/Inches, 5.75 Depth/Inches Base Material: 100% Plastic Decor Styles: Modern Country of Origin: Imported