The length of a suit has to do with washings not regeneration cycles. Out to twenty washings you are good to go, after that point we start seeing a falll off in effrectivness. I would not wear a suit past twenty three to twenty five washings. Yes, sweat and fats do not always come fully out after total saturation, this is a great time to wash it. In Louisana humidity and heat after a week I wash it. That short of period is the shortest timespan that I have ever had to wash it. People in high temperature areas of the country, need to wash theirs three to four times a season average. For us upin the northern and midwestern states twice is sufficient.

Again, as I have posted before. With proper care an activated carbon suit's fabric construction would wear out before the carbon is rendered ineffective.