sorry if this has been asked before- i am looking for a really good air purifier. i want one that is extremely quiet (some noise is tolerable), and excellent with dust, pet dander- the usual allergens. also, i have looked at those with mold and bacteria killers. my mom has one like that; very good, but it is extremely noisy. i'd be willing to pay about $350.00, but if it's a really good one, i could go higher.
in addition, i'd like one for my car, since my air vents seem to spew dust (even though it's a new car).
any brand suggestions?