porous , permeable particles of meta - aramid can be chlorinated or brominated to produce antimicrobial and detoxifying particles for use in applications such as , but not limited to , nonwoven webs , paper , textiles , absorbent articles , healthcare products , paints , filter materials , powder coatings , clear coatings , molded plastic articles , binders for fibrous materials , and the like . the particles can be charged with halogen before or after incorporation into the application medium . the particles can contain blends of meta - aramid with other polymers such as , but not limited to , cellulose , cellulose acetate , polyurethane , and the like . the particles will be effective at inactivation of pathogenic and odor - causing microorganisms and toxic chemical agents . the particles , which contain n - halamine units , have unexpected resistance to ultraviolet light degradation .