Tobacco smoke filter for smoking device with porous mass of active particulate

A tobacco smoke filter comprising:

• a porous mass comprising active particles and binder particles, said porous mass being adapted to enhance a tobacco smoke flowing over said active particles and said binder particles, said porous mass having an encapsulated pressure drop of about 10 mm of H2O/mm of porous mass length or less, said active particles comprising about 1-99% weight of said porous mass, said binder particles comprising about 1-99% weight of said porous mass, said active particles and said binder particles being bound together at randomly distributed points throughout said porous mass, said active particles having a greater particle size than said binder particles, and said binder particles have a melt flow index (MFI) at 190° C. and 15 Kg of less than about 3.5 g/10 min, a bulk density of about 0.1 to about 0.55 g/cm3, and either (1) a molecular weight of about 300,000 to less than 1,000,000 and an average particle size of about 5 microns to about 500 microns or (2) a molecular weight of about 1,000,000 to about 6,000,000 and an average particle size of about 200 microns to about 500 microns.