
When it comes to filters, there are several options. There are disposable, washable, and electronic. We recommend disposable. For most people, pleated filter is a great choice because of the increased surface area of the filter. There are several levels of filtration and you can pick a filter that fits your needs. A dirty filter prevents air from flowing through the system. If air flow is restricted, the unit will not be able to efficiently cool the space. If air flow becomes too restricted, the unit can freeze up and air flow becomes increasingly reduced.