Why are my dogs coughing so much after new AC installation?

Cough in dogs can be with primarily respiratory or cardiac in nature. The first step to treating the cough is determine where the problem is originating. Coughs that are primarily respiratory in nature can be due to infectious causes (like lung worms, or bacterial, viral, or fungal infections) or due to airway disease (like asthma or a collapsing trachea). Coughs that are due to cardiac (heart) issues include things like pulmonary edema (fluid in the lungs) and heartworm disease. My best recommendation is for you to take Chester in to your vet to be checked out. Usually a physical exam performed by your vet can distinguish between the two causes. Sometimes X-rays are also needed. I think it is unlikely that the cough is related solely to the A/C. I hope this helps. Best of luck.

I doubt the AC is to blame. Cough can be caused by an infection, heart problem or lung condition, it is important to first know the cause before treating it as treatment is different from condition to another. you should request your vet to perform an xray in order to try and find out what is causing this.

It is likely that your dog has an irritated upper airway from the dust and the smoking. As long as the cough is improving, and your dog does not appear ill, I would not worry too much. Keep him away from the smoke and try not to take him out in a dusty environment. If his eye gets worse or he starts having a discharge from the eye or the nose, he should be seen by a veterinarian for an exam.

No, there is no such thing A/C allergy, but you moved to a new place, a new environment so it is probably allergy to something else (might be impossible to find out to what). you can take them to the vet so they can get medications to treat this allergic reaction but it might of course come back and be a permanent problem.

Poor Jet! If you have been creating a large amount of dust and debris in your decorating, it is possible that Jet is experiencing some airway irritation. However, if he has been exposed to any dogs (on walks, dog parks, groomer, etc.) over the past week, there is also a chance that he has contracted kennel cough or canine influenza. If the cough continues or worsens, he should see his vet.

Kennel cough, or Bordetella, is a common upper respiratory pathogen that is very contagious between dogs, and usually dogs have a loud goose-honk cough, sometimes ending in coughing up a bit of phlegm. This could be going on with your dogs. Don't worry, it isn't life-threatening, but I usually put these dogs on an antitussive to help alleviate the cough and sometimes an antibiotic. If you don't take them to a vet, the cough should go away in a week or two, but make sure you don't let them socialize with other dogs as they will spread it around.

Cough can be caused by an infection, heart problem or lung condition, it is important to first know the cause before treating it as treatment is different from condition to another. The most common disease causing cough is a viral/bacterial infection called Kennel cough, this disease usually resolves without treatment within a couple weeks but if the cough is too severe it is recommended to go to the vet in order to get cough medicine and antibiotics.