Received the unit one day after ordering ! The unit has been operating for about 2 1/2 days & so far, very pleased with it. Fan levels 2 & 3 are a bit loud, so at night we put the fan on the first level. The UV Light is also a bit bright at night in the bedroom, so we shut it off. Come morning, we increase the fan level & turn the UV Light back on. Very easy & neat. The unit is also very nice looking & sleek. Seems to definitely be helping the air purification in the bedroom !