HEPA filters are the most efficient filter for removing tiny ultra-fine particles which can otherwise penetrate deep into the lungs causing many of our well known and other lesser known health problems.

HEPA is an acronym for High-Efficiency Particulate Air.

The Australian Standard AS4260-1997, defines the HEPA filter as a disposable, extended (concertina) media having minimum filtration efficiency of 99.97% of particles that have a size of 0.3 microns.