Waste of money.I will suggest not to purchase it.I used it for 6 month then writing my review to aware other customers .I hardly feel any specific effect. My sister is having dust allergy so purchased it .After using for months we did not get any better result for air purification. This doesn’t work at all just make a humming sound sometimes. I didn’t feel any inch of difference in the air. It was the same a unpure a sit was. I would recomend to the people who want to use it as a show piece at homes. because this is exactly what it is.
Don’t Buy.