I'm super satisfied with the Philips purifier 2 in 1 combi because having lots of inconvenience, and my family, in my home by indoor air pollution, outdoor, allergies associated with volatile dust, carpets, droughts ... .We have been bringing to use the services of purifying and humectant purifier that is super effective .it us relieve persistent headaches, coughs and incessant sneezing, asthma, lack of sleep, eye and ear scratching by reaction .It indeed an ingenious way and reliable to give better health benefits and improve the living atmosphere.