Callidus.se, the leader and pioneer in providing water filters urges the administrators of public schools to invest in high-quality water filters to ensure that the students are able to drink clean water. According to Callidus.se reveals that the large majority of public schools across the globe fail to offer safe and clean water for the students and other employees of the school. As a matter of fact, drinking unfiltered and unsafe water is prevalent in the regions of Africa as well as in Asia. In connection with this, Callidus.se believes that settling for unfiltered water wreck havoc the health of the students.