Actually not all wine does need breathing or "airing" as some will refer it to. Many variables actually. Young, quality and/or denser grapes ie: cabernet, merlot, or quality blends like Bordeaux may need it, but not all of those even need it. Quality means a lot. A cheap or lower quality wine will not need airing. In fact , it will probably only get worse.
Search for a specific wine here that you have had or want to have (name, year, type) and you can get better feedback to specific wines. Breathing time also varies and your palate is a big factor. It's a very general area and there is no 1 universal answer.