a study has shown that xerophytic plants which employ the cam mechanism can solve micro-climate problems in buildings of humid countries. the cam photosynthetic pathway absorbs the humidity in small spaces, effectively making the plant such as "sansevieria trifasciatas" a natural indoor humidity absorber. not only will this help with cross-ventilation, but lowering the surrounding humidity increases the thermal comfort of people in the room. this is especially important in east asian countries where both humidity and temperature are high.