Here are some SEO titles that meet your requirements:
1. "Humidifier and Diffuser - Wholesale from China"
2. "OEM Humidifier and Diffuser - Manufacturer in China"
3. "Humidifier and Diffuser Supply - Exporter from China"
4. "China Wholesale Humidifier and Diffuser - OEM Available"
5. "Humidifier and Diffuser Manufacturer - Supply from China
Introducing the latest product from Shanghai Olan Humidifier Co., Ltd., a leading manufacturer, supplier, and factory based in China. Our Humidifier And Diffuser is a must-have for any home or office. It not only adds moisture to the air, but also diffuses essential oils to create a pleasant aroma. With its advanced technology and sleek design, it is both functional and stylish. Say goodbye to dry air and hello to a refreshing and comfortable environment.