Applications: small area such as office, single room, children room, clinic, etc. Features: With99.7% true HEPA filter.It can capture 99.7% of all particles in the air that are 0.03 microns in size and larger. Itcontains electrostatic technology in order to trap anyother particles that may be present in the air. With activated carbon filter to remove odors and bad smells. With UL and CE listed adaptor to convert the voltage from 110V AC to 12V DC, safety operation and low power consumption! Unique features: 1. Compact and portable 2. Built-in picture frame 3. No ozone produced 4. Low noise level, quiet operation 5. Patented products with unique features.