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.
To qualify as HEPA by US government standards, an air filter must remove 99.97% of 0.3 Âµm particles. This size constitutes the Most Penetrating Particle Size, which is the most difficult size of particle to filter. Smaller and larger particles are filtered at even greater efficiency. A filter that is qualified as HEPA is also subject to interior classifications.