Earth Globe Glowing Water Air Washer and Revitalizer, Large Water Based Air Revitalizer Air Freshener, 2 Bottles (30ML) Aroma Oil Included (Black)

It lasts all day and works well. I can tell when it is off or needs the water reservoir filled...the air isn't as fresh. We have multiple dogs and this keeps the house from smelling "doggy".

The size in shape

It does clean the air of airborne particles, but it is very inefficient in cleaning air.If you are looking for something due to allergies steer clear of this,but it does have some pros:a) cleans the air to some extent ( especially smoke, smelly dog)b) effectively scents the air ( if you have true essential oil ) --> the soapy scents that came with the device were NOT good imo.Some examples:1) Some food burnt in kitchen causing some smoke. Took this device in there and it cleaned up the smoke faster than I expected.2) When we vacuum we usually do not use any powder or other for fragrance, but afterward our dog can be smelled in the air.... We run this device during and after, and it really takes the scent away.3) Really disburses essential oil quickly and effectively.It is very easy to use.I would not buy another one, but this one has a place in our house and will continue to be used.

Not quite what we expected, would be great for a small room like a dorm room, small bedroom etc. We had it in our front room and really couldn't tell that it did much, but it was easy to set up and use.

2nd one of those brand, works great

Garbage. Used it once.

Used it on the first night and slept better than I have in years. The low noise is soothing as well. I would recommend this to anyone who has problems breating at night while they sleep.

it is very nice and easy to use makes the whole room smell good barbara