Model DFD-M150 is approved for use in walls, floors and. partitions with fire resistance ratings less than 3 hours. This model carries a 11/2 hour UL fire damper label. UL. 555 classifies dynamic rated fire dampers for use in HVAC. systems that are operational in the event of fire.
1 Puppies can receive the injectable vaccine starting at 6 to 8 weeks of age, followed by a booster between 10 and 12 weeks of age. 2  For adult dogs or puppies older than 16 weeks, the intranasal vaccine can be given once, and the injectable vaccine should be given twice, two to four weeks apart.ordetella bronchiseptica is a bacterium commonly associated with respiratory disease in dogs. It can also infect cats, rabbits and, in rare cases, humans. It is one of the more common bacterial causes of canine infectious tracheobronchitis, which is also sometimes called kennel cough.
Kennel Cough. Kennel cough can be caused by many different strains of bacteria, and the kennel cough vaccination protects against the most common strain, bordetella bronchiseptica. Kennel cough is characterised by a dry, painful and hacking cough, which is highly transmissible to other dogs.ennel Cough. Kennel cough can be caused by many different strains of bacteria, and the kennel cough vaccination protects against the most common strain, bordetella bronchiseptica. Kennel cough is characterised by a dry, painful and hacking cough, which is highly transmissible to other dogs.