29 ZH-CN 2 Philips Philips www.Philips.com/welcome Wa W W rranty Quick start guide AC4090 | www.philips.com/welcome A Filter 4: HEPA filter 4: HEPA 4: HEPA Filter 3: Activated carbon filter 3: 3: Filter 2: Multi-care filter 2: 2: Filter 1: Pre-filter 1: 1: A AC4016 Register your product and get support at www.philips.com/welcome English 3 19 33 4: HEPA P P (AC4184) 3: (AC4183) 2: (AC4181) 1: