I bought this a couple weeks ago and it's amazing -- helps with allergies, helps filter out smell, works well, super quiet and efficient, helps with pet dander/dust/etc. Super easy to use! 100% recommend to anyone that has any of those problems.
When we got this filter I was waking up with a dry throat from all the dust in our bedroom. I started using this Crane HEPA purifier and have not had a problem since! It is an incredible air purifier!