What is the difference between an air cleaner and an air purifier? . Air cleaners filter the air (HEPA air cleaners for instance) while air purifiers sanitize the air by emitting negative ions, ozone, utilizing heat (Airfree air purifiers) or with UV or UVC lamps.
The primary raw material used for activated carbon is any organic material with a high carbon content (coal, wood, peat, coconut shells). Granular activated carbon is most commonly produced by grinding the raw material, adding a suitable binder to give it hardness, re-compacting and crushing to the correct size. The carbon-based material is converted to activated carbon by thermal decomposition in a furnace using a controlled atmosphere and heat.
An air ionizer is a relatively new device that is intended to purify the air. As its name implies, instead of using fans and filters, an air ionizer creates ions which remove microscopic particles from the air. Rooms are healthier for those suffering from asthma, allergies, impaired immunity, or respiratory ailments, without as many allergens circulating in the lungs.
HEPA stands for High Efficiency Particulate Air, and a true HEPA filter is widely regarded as the ultimate filter.
In World War II the Atomic Energy Commission needed a filter to protect researches from radioactive dust particles that might present a health hazard to them. The HEPA filter was born. It traps particles as tiny as .3 microns with an efficiency rating of 99.97%.
Photo Catalytic Oxidation incorporates the usage of photons, packets of energy that make up light or light energy, combined with a photocatalyst, titanium dioxide, to eliminate airborne contaminates such as bacteria, viruses, mold, spores, fungi, allergens and gases.