My five month old lab puppy has snorting/wheezing/ since the last 2 days mainly just in the morning for a few minutes or when i take him out of the crate for his walk. It only lasts a few minutes and then dies down. It's like he has a cold or a bad stuffy nose and he's trying to get rid of , though there is no discharge. He's still eating and playing as usual though. Anyone have any ideas as to what this is and should we take him to the vet? What can they do for him there?

Last week i changed his food from Nutro ultra to Eukanuba (though gradually), and have started using clorox to disinfect the floors. Could this be a possible cause???

What % solution did you use on the floor? Maybe it still has too much odor for the dog? Sneezing can also come from herpes virus. Have you been to a show or classes?