The Dyson Purifier Big + Quiet Formaldehyde BP04 (394809-01) in Prussian Blue/Gold is a high-quality air purifier designed for whole-house use. With its HEPA-Type filtration technology, it captures allergens, bacteria, and viruses, providing cleaner air for any room in your home. The purifier features a sleek design in blue color with a matte finish, and is operated with a remote control and digital control style. Its wireless capability and smart home protocol using Bluetooth technology make it easy to use and integrate into your home system for improved indoor air quality. Made in the United States, this Dyson purifier is a reliable and efficient solution for maintaining a healthy environment.