Inventors:
Lixin Xue - Midlothian VA, US
Liqun Yu - Midlothian VA, US
Joel Schendel - Midlothian VA, US
Assignee:
Philip Morris USA Inc. - Richmond VA
International Classification:
A24D 3/06
Abstract:
Filters and smoking articles include sodium bicarbonate-treated fibers and activated carbon capable of selectively removing one or more selected constituents from mainstream smoke. Methods for making cigarette filters and cigarettes using the sodium bicarbonate-treated fibers and activated carbon, and methods for treating mainstream smoke comprising the sodium bicarbonate-treated fibers and activated carbon are also provided.