Review on 🚗 KLEENKI.com HEPA Car Air Purifier - Travel-Sized Portable with H13 Filter, Mercury-Free & Ozone-Free - Ideal for Rideshare Drivers, Rooms, Odor, Commutes - Filters Allergens with 99%+ Purification - (1 Pack, Black) by Holly Rodriguez

The inner box was already open when I opened the Revain box. I'm glad I don't see any benefit before using it. So far so good for testing at home before sticking in the car. Updates from 08/26/2021 The product died, did not last at least a year. Very disappointed. There are also no guarantee provisions. Update 7th September 2021 After contacting Revain and saying the product would die within a year I received a replacement. The box is brand new and the packaging has changed and the best part is that this time it has not been opened. I'm definitely glad I'm turning to Revain.