Dyson Refuses to Replace My Purifier Despite Ongoing Noise Problem for Months

I’ve been dealing with a terrible noise problem from my Dyson purifier for months, and despite carrying this large unit in my personal car for the fourth time, Dyson still claims there’s nothing wrong with it. The noise is so loud that it disrupts my sleep and makes it impossible to use in any room. I’ve tried explaining the issue in detail each time, but nothing changes. I need a new one—I no longer want this model because I simply can’t use it anymore. I need a solution immediately. Dyson doesn’t seem to care at all.