HEPA filter
noun [ C ] uk/ˈhep.ə ˌfɪl.tər/ us/ˈhep.ə ˌfɪl.tɚ/
高效空气微粒子过滤器（high-efficiency particulate air filter的缩写）
abbreviation for high-efficiency particulate air filter: a device for removing or blocking extremely small pieces of dirt from the air that is allowed to enter a place
The hospital has state of the art operating theatres equipped with HEPA filters. 医院拥有配备HEPA过滤器的最先进的手术室。
To protect your eyes, use properly fitted goggles or a full-face respirator with HEPA filter. 为了保护你的眼睛，请使用合适的护目镜或带HEPA过滤器的全脸呼吸器。
- More examples
- Allergy experts recommend using a vacuum cleaner with a HEPA filter.
- Unlike membrane filters, HEPA filters do not rely on the action of sieves or strainers, which only catch anything larger than a certain size.
- One safety feature designed to keep germs contained is having air constantly flow only into the lab, then out through specially designed HEPA filters.
- The air purifying respirator uses a blower to force air through a HEPA filter.