Genuine Philips HEPA NanoProtect filter for PureProtect Pro 4200 Series. Captures 99.97 % of ultrafine particles, allergens, bacteria, viruses, and odors. Easy to install and ensures cleaner, healthier air.

• 4‑layer filtration: HEPA NanoProtect + carbon + pre-filter
• Removes dust, allergens, bacteria, viruses & odors
• Smart filter indicator for timely replacement
• Works up to 1 year depending on air quality
• Easy installation for AC4220/AC4221 purifiers