A few links to websites talking about Totobobo in Beijing:
Air Pollution 101: Here’s Your Syllabus, by Dr. Richard Saint Cyr.
A great collection of informative articles on air pollution.
The Mask Factor: Breathing Easy for Cheap by Marilyn Mai
The Beijinger
700Bike reviews several pollution masks for cycling, including Totobobo mask (in Chinese)
Forum Club PChome discussion about Totobobo mask (in Chinese)
