Besides, compared to other supplier , our ceiling dehumidifier is special designs as frame structure ,more compacted , lighter on weight for easy hanging up overhead . and in order to keep keep high quality ,we use Eco-friendly R410a, inner grooved cooper tube. Providing 12 months warranty for whole unit from the buying date, if any spare parts damaged,not caused of by human reason,we provide spare parts for free. We are looking forward to have a good start business and build a long -term cooperation Win-Win.