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.
This vaccine is given to puppies and dogs that are exposed to other dogs in boarding, public dog park, training and other situations. The vaccine can be given to puppies over 8 weeks of age. Not all puppies require this vaccine-you and your veterinarian will determine if your puppy is at risk for this disease.