Aimcare Premium Best Ultrasonic Glass Cool Mist Aroma Aromatherapy Oil Diffuser with Waterless Auto Shut-off for Home Office Bedroom Indoor Living Room (gold) Aimcare Ultrasonic Glass Cool Mist Aroma Aromatherapy Oil Diffuser is **EASY TO USE : No heat involved and no risk of burns.Best usages in an office cubicle, a small yoga studio, a spa, a nursery, or any room of your home **MELT AWAY STRESS: Refreshes and moisturizes the air in rooms up to 160 square feet making it easy to breathe and relieving a variety of conditions which include nasal congestion, allergies, asthma, insomnia; and deodorizes strong odors of pets, tobacco, and dust. **AUTO SHUT-OFF: Diffuses 100% all-natural essential oils with aroma coverage that lasts up to 4 hours Anhydrous automatic shut off ensures a safe and comfortable environment. **GOOD CAPACITY: The tank has a 100ml maximum. With all natural essential oil, it effectively kills bacteria, purifies the air, and prevents a variety of diseases. It is an essential health care guard for the office and/or home. **100% Satisfaction Guarantee:30-day Full Money Back Guarantee and 1 year worry-free warranty