3 in 1 Mini Portable Air Purifier & Air Freshener & Ionizer  - True HEPA Filter Cleans Air, Helps Alleviate Allergies, Eliminates Smoke & More — Ideal for Traveling, Home, and Office Use

4-STAGE AIR PURIFICATION: Clean your personal air from 99.97% of dust, pollen, pet dander, smoke, and odors. Stage 1: Pre-Filter; Stage 2: True HEPA filter; Stage 3:Activated carbon pre-filter; Stage 4: Negative ion release.

VERSATILE DESIGN: 3-in-1 air purifier with aroma stick (Cologne, Floral, Marine) and negative ion release.Refresh the air and bring you a good mood and relieve stress.

AUTO SHOT OFF/ ON: This purifier can sense vibration, it will also turn off when you turn off the car, and it will turn on automatically when the car is driving, no need to turn it on manually.

IDEAL FOR TRAVEL: Weighing under 1 lb, this on-the-go small air purifier keeps your personal space clean for up to 5 hours with a rechargeable lithium-ion battery. At your final destination, plug it in for continued fresher air.

It does operate while plugged in as well as on battery,quiet and compact so it's unassuming and easy to travel with or put on a desk during a meeting.