Compact & PortableThis plug-in portable Air Purifier size at: 11 3.8 2.5 cm/ 4.3 1.5 1in. Small, lightweight, compact, and travel-friendly, making it the perfect mini air cleaner. Best Negative Ion Air Purifier For HomeLarge room? No problem. Simply plug into any standard outlet and replace bulky, expensive air purifiers with a simple, filterless, plug-in device. May Help With AllergensNegative ions attach to floating allergens like dust, dander, pollen, and more. Use Simpolor air ionizer and freshener for pets and pet dander. We use negative ion technology, which means you wont have to spend time and money on replacement air filters. Refresh & RelaxIf you struggle with allergies, low-quality sleep, congestion, or symptoms caused by pet dander, the Mini Air Purifier is ready to help you create a healthy space. Perfect For Every RoomDesigned for home air rejuvenation, the perfect plug-in air units for office, bedroom, bathroom, kitchen, living room use and more, creating less clutter and more fresh air.