Here we have yet another one of those USB gadgets that are designed to improve the air quality around your home or office desk.

The ionizer is designed to improve the quality of air by emission of negative ions. Cleaned and purified air can prevent allergy caused by filthy air.

Features:

• Ozone-free carbon fiber ionizer generates millions of negative ions to clean and ionize the air thoroughly.
• High-performance fan immediately & silently draws the polluted air in then disperse the negative ions evenly back into the air.
• Working area: 2 ~ 3 cube meter.
• ON/OFF switch, Blue LED indicator.
• Support: Windows & Mac OS with USB Port.
• Dimension: 85 x 115 mm.
• Weight: 176g.

The USB Mini Ionizer / Air Purifier is yours for $20 from USB Geek.