Young Inspection Services 2602 Haultain Ave Saskatoon, SK S7J1R6 (306) 220-8553 https://www.google.com/maps?cid=15325502865833040229 Dryer vents need to be monitored and cleaned periodically, this termination was so clogged with lint that the flapper would no longer open. This will cause lint buildup inside the duct that can be a major fire hazard and reduce the efficiency of your dryer!