Pug rescue is a wonderful organization. There should be one in every general area within a 2-4 hour driving range. It also helps animal shelters and the humane groups because they are already so over crowded. When someone has a need to dispose of their Pug, they can call Pug rescue and someone will pick the Pug up. They are usually groomed and put on good dog food.
Some Pugs stay in foster longer than others.
They always stay long enough to be thoroughly cared for and examined before being placed. Older Pugs with ailments and illness sometimes die in foster care as people generally do not want to bring home a Pug that won't live to many years. I think if you have a big heart and a knowledge of Pugs, then an older Pug would be a blessing to your home. Many other breed rescue groups will not consider rescuing a animal over a certain age, such as 5 or with any complications. Most Pug rescue groups rescue Pugs of any age under any conditions.