Well, I think Amazon should quickly change the title of this product, or people looking for an air purifier going to have trouble getting on it ... It is therefore not a question of kraft bag with rope handles, but a sophisticated device to purify and humidify the air. It would be suitable for a surface of 36 m2 max., But I think it works best in a small room, at least I tried two different rooms, the kitchen and a bedroom, and got results significantly clearer in the first case. Attention, it is still quite large (300 x 300 x 340 mm) and must be able to connect it. I wanted to put it on my fridge, but there was not enough room ceilings. No pets at home, so I did not test the animal hair, but smells the difference is clear. As for dust, I am a little dubious ... I very little heating (well insulated modern Parisian apartment) so for now I have not tested the humidification function, rather interesting for an old house the countryside.