AC , when feel an attack just starting, best place to get to is your auto with the AC on full blast and vents directed at the face.

my sister-in-law has asthma really bad, and she found out that the filters need to be cleaned often, and the water cooler, or swamp cooler was not good for her to use.air coolers and swamp coolers are probably not the same thing.but The filters were the problem, it brought in to many bad bacteria, so I'm thinking the same thing works for us with COPD. I'm not a doctor so I really don't know, but we hear everyone talk about how we need to pay attention to what we breath in. hope this helps.

Sorry did not read the whole thing. Swampers use water to cool as opposed to AC that uses freon. The filter and the water wells grow mold and bacteria that's why they aren't good for us

Air conditioner for sure. Water coolers have the potential to be mold havens. Not good for anyone with respiratory problems.

AC is better.. you can't use swampers if it is humid or hotter than 100 degrees they are just not efficient. Swampers use air from outside were AC recirculates air in the house and better controls the humidity in the house