Looks wise it is an ok. No grip to hold while shifting between rooms. In bangalore I have not got a real situation to test it. The pm level is always near or below 75 mark. Will give a complete review after using it for some months.
Bought on 10th November when the air quality was severe in Delhi and after using it for about 15 minutes the air quality improved very rapidly but in my locality the average AQI remains in 60s. For best experience you have to close doors and windows.