Synthetic Fiber Air Pre Filter is a type of air filter used to remove large particles from the air before it reaches the main air filter. It is made up of synthetic fibers, which have a greater capacity to capture and hold dirt and other particles than natural fibers. The Synthetic Fiber Air Pre Filter can increase the lifespan of the main air filter by removing larger particles that can clog it up more quickly. It is generally used in HVAC systems and air purifiers. Moreover, Synthetic fiber air pre filters are washable and reusable, making them a cost-effective and environmentally friendly option.