Review on Munchkin True HEPA Air Filter Replacement For Air Purifier, 3 Pack by Cassandra Parkins

I do love this brand, and I spend a high price on it, but after I receive this item, found out basically it is a small, noisy and unsafe toy. When I press the on/off in the back, it will not turn off, after so many tries, seems the button is dead, and the small fan creates huge sound, and with less wind volume, it will not have any effect on air quality, plus there is a small hepa filter, how can it store and block dust, pollen. when I have it on hand, the bottom cover is easily fall off with the filter, and the fan is still running, how can a famous brand develop product like this. I will not use this in any of my children's enviorment, because it's too noisy. And, not worth the money, I'm returning it.