PRANNO Wearable Portable Air Purifier ? Filterless, Silent | 150M+ Negative Ions | 75H Use | USB Rechargeable | Removes PM2.5, Dust, Smoke, Odour | For Travel, Car, Office, Personal Use (Silver)

PRANNO Wearable Portable Air Purifier is a filterless and silent device that releases over 150 million negative ions to purify the air around you. It can be used continuously for up to 75 hours on a single charge and is conveniently rechargeable via USB.

Key Features: - Releases over 150 million negative ions to purify the air - Filterless and silent operation - Up to 75 hours of continuous use on a single charge - USB rechargeable for convenience - Removes PM2.5, dust, smoke, and odors from the air

For whom: - Travelers - Commuters - Office workers - Anyone looking to improve the air quality around them

Pros: - Filterless design eliminates the need for replacement filters - Silent operation won't disturb others - Long battery life allows for extended use - Portable and lightweight for on-the-go use

Cons: - May not be as effective in larger, open spaces - Some users may not notice a significant difference in air quality depending on their environment