This purifier is amazing because there inbuilt many features which are not available in other purifiers available in market such as it has inbuilt ionizer to to improve the quality of the room and refresh the room with awesome fresh fragrance all the time it is very simple to operate no extra things are required to run this purifier and best thing it maintains its fragrance and can be used throught the day which is very cheap as well as affordable and it aslo has filter change indicator alarm so by the time every 1 or 2 month you need to change the filter and make the best use of this purfier in your house. Thus I recommend everyone to but this purifier in your house.