Final answer:
Simple condenser humidifiers contain a condenser element with hydrophobic materials, which repel water to facilitate the condensation process. This differs from membrane filtration, used to remove bacteria in solutions, typically with a 0.2 µm filter.
Step-by-step explanation:
Simple condenser humidifiers typically contain a condenser element with hydrophobic material. This material is used because it repels water. These humidifiers remove moisture from the air through the process of condensation, wherein water vapor in the air is cooled enough to convert into liquid water. In the context of air conditioners it is the condenser component that converts gas into liquid. Meanwhile, membrane filtration, involving a filter with pores usually around, is used for removing bacteria and can be used for heat-sensitive solutions.