Philips Air Performer AMF870/35 (Black, 3-in-1)

How large a room can this air purifier effectively clean?

The AMF870/35 purifies rooms up to 70m² effectively with its 270 m³/h Clean Air Delivery Rate. The unit distributes clean airflow to every corner through powerful circulation. For optimal results in larger spaces, position it centrally where air can circulate freely around the unit.

What types of pollutants does the NanoProtect HEPA filter remove?

The NanoProtect HEPA technology removes 99.97% of particles including pollen, dust, pet dander, dust mites, mould spores, harmful gases, odours and allergens. The electrostatic charge actively attracts pollutants rather than just trapping them passively. This makes it particularly effective against microscopic particles that traditional filters might miss.

How does the AI functionality work and what does it control?

The AI system analyses real-time air quality data from built-in sensors, outdoor weather conditions and your usage patterns. It automatically switches between purifying, heating and cooling modes based on these inputs. The system learns your preferences over time and optimises performance without manual intervention, ensuring optimal comfort and air quality.

Can I control this air purifier remotely and does it work with smart home systems?

Yes, the Air+ app provides full remote control including air quality monitoring, mode selection, scheduling and performance tracking. The unit is compatible with Amazon Alexa for voice control. You can check air quality status, adjust settings and receive notifications even when away from home.

How quiet is this unit during operation and is it suitable for bedrooms?

In sleep mode, the unit operates at just 19dB - quieter than a whisper and barely audible. This makes it ideal for bedrooms, nurseries or study areas where noise could be disruptive. Even at higher speeds for heating or cooling, noise levels remain reasonable whilst maintaining effective performance.

What maintenance is required and how often do filters need replacing?

The unit features a pre-filter, NanoProtect HEPA filter and activated carbon filter. Filter replacement frequency depends on usage and air quality but typically ranges from 6-12 months. The app monitors filter life and sends replacement reminders. Regular cleaning of the pre-filter helps extend main filter life.

How quickly does the heating function warm up a room?

The PTC ceramic heating technology heats up in just 3 seconds and begins warming the room immediately. You can set target temperatures from 1-37°C and the energy-saving algorithm efficiently maintains your desired temperature. The 350° rotation ensures even heat distribution throughout the space.

Is this unit energy efficient compared to running separate appliances?

Yes, the unit uses just 40W for air purification - less than a traditional light bulb. The energy-saving algorithms optimise heating and cooling cycles to maintain comfort whilst minimising electricity consumption. Running one efficient 3-in-1 unit typically uses less energy than operating separate purifier, fan and heater appliances.