The Philips AC4221 Smart Air Purifier efficiently cleans indoor air up to 700 sqft, removing 99.97% of viruses, allergens, dust, and PM2.5 particles. Its real-time Air Quality Index (AQI) display provides continuous monitoring for optimal air conditions. Designed to operate 50% quieter than standard models, it ensures a peaceful environment while maintaining high-performance filtration. Ideal for maintaining healthier indoor air quality in homes.
