Trans Fats or Hydrogenated Fats. Trans fats are actually unsaturated fats, but they can raise total and LDL (bad) cholesterol levels while also lowering HDL (good) cholesterol levels. Trans fats are used to extend the shelf life of processed foods, typically cookies, cakes, fries and donuts.rans Fats or Hydrogenated Fats. Trans fats are actually unsaturated fats, but they can raise total and LDL (bad) cholesterol levels while also lowering HDL (good) cholesterol levels. Trans fats are used to extend the shelf life of processed foods, typically cookies, cakes, fries and donuts.
High-efficiency particulate arrestance (HEPA), also sometimes called high-efficiency particulate arresting or high-efficiency particulate air, is a type of air filter.
Filtration Table of Contents. HEPA Air Filter Supplier. A HEPA or High Efficiency Particulate Air Filter is a high performance filtration device capable of removing particulate matter with minimum collection efficiency of 99.97% for a 0.3 micrometer (micron) diameter of a thermally-generated dioctylphthalate (DOP) particle.