Special activated charcoal prefilter reduces odors from tobacco smoke, cooking, nursery, pet and plant odors and extends HEPA filter life.

• 针对室内细小过敏原的去除，如香菸、室内灰尘、花粉、细小纤维、家庭宠物所掉落的皮屑及毛发、细菌、黴菌及其他病毒等，有接近100%25的过滤效果。