You can purchase a low-quality one for the price of 500. a disposable Chinese muzzle that will squeak like an uncut piglet after a day or a month after it has been used. This one is significantly more costly; I purchased it for $2,800; nonetheless, it was carried out with great quality and for an extended period of time; it was evaluated on the earlier model that had become worn out over the years. This new model maintains the same level of performance yet having a consumption level that is 50 percent lower. This is the most basic type; there are others that are much more expensive, but already come equipped with a timer and automatic humidity control; however, I do not require these features.In conclusion, if the issue of cost is not something that is important to you, then you should absolutely go with this choice because it is fantastic. Do not forget that it is of the utmost importance to avoid getting electrocuted in the restroom; hence, there are specific safety regulations, and you will be expected to pay for them. User manual: . Pdf Instructions on how to connect can be found at http://www.ua.com/stati-o-ventilyacii/kak-podklyuchit-vytazhnoy-ventilyator/.