Information

• Philips AC4221 Smart WiFi Air Purifier is designed to improve indoor air quality by filtering airborne dust, pollen, pet dander and fine particulate matter.

• Features a three-layer filtration system comprising a pre-filter, HEPA NanoProtect filter and activated carbon filter.

• Provides a Clean Air Delivery Rate (CADR) of 600 m³/hour.

• Covers rooms up to 72 m² under the GB/T testing standard.

• Captures 99.97% of particles as small as 0.003 microns under specified laboratory test conditions.

• Includes PM2.5, gas, temperature and humidity sensors for indoor air quality monitoring.

• Supports Wi-Fi connectivity and compatible Philips Air+ app features.

• Features Auto Mode, Sleep Mode, five fan speed settings and a child lock.

• Designed for bedrooms, living rooms, home offices and larger indoor spaces.

Uses

• Helps reduce airborne dust and fine particulate matter indoors.

• Captures airborne pollen, pet dander and other common allergens.

• Helps reduce certain household odours and gaseous pollutants through activated carbon filtration.

• Supports indoor air quality management during periods of outdoor pollution.

• Helps filter suspended particles in bedrooms, living rooms and home offices.

• Supports continuous air purification in larger indoor spaces.

• Provides air quality monitoring through built-in sensors.

Benefits

• Advanced filtration: Combines a pre-filter, HEPA NanoProtect filter and activated carbon filter.

• High purification capacity: CADR of 600 m³/hour supports efficient air cleaning in larger rooms.

• Fine particle filtration: Captures 99.97% of particles as small as 0.003 microns under specified test conditions.

• Gas and odour filtration: Activated carbon helps reduce certain household odours and gaseous pollutants.

• Multiple air quality sensors: Monitors PM2.5, gas, temperature and humidity.

• Smart connectivity: Supports remote monitoring and controls through the Philips Air+ app.

• Automatic purification: Adjusts fan operation according to detected air quality in Auto Mode.

• Quiet operation: Minimum specified sound level of approximately 15 dB(A) in Sleep Mode.

• Energy-efficient design: Maximum rated power consumption of approximately 54W.

• Convenient maintenance: Includes a filter replacement indicator.

• User-friendly features: Offers five fan speeds, child lock and an ambient night light.

Side Effects

• The appliance is not a medicine and is not generally associated with direct side effects when used correctly.

• Airflow directed continuously towards the face may cause minor discomfort.

• Fan noise may be noticeable at higher speeds.

• Dust accumulation or a clogged filter may reduce purification performance.

• Blocked air inlets or outlets can affect airflow and efficiency.

• The purifier does not replace prescribed treatment for asthma, allergies or other respiratory conditions.

• Follow the manufacturer's electrical safety, cleaning and maintenance instructions.

How to use

• Place the purifier on a stable, level surface with sufficient clearance around the air inlet and outlet.

• Remove the filter packaging before installation.

• Connect the appliance to a suitable power outlet and switch it on.

• Select Auto Mode for automatic purification or choose a fan speed manually.

• Use Sleep Mode at night for quieter operation.

• Connect the purifier to the Philips Air+ app according to the pairing instructions.

• Keep doors and windows mostly closed during high-pollution periods when practical.

• Clean the pre-filter as instructed in the user manual.

• Replace the main filter when indicated or as recommended by the manufacturer.

How it works

• Draws indoor air into the appliance through its air intake.

• The pre-filter captures larger particles such as dust and hair.

• The HEPA NanoProtect filter captures fine airborne particles.

• The activated carbon filter helps reduce certain household odours and gaseous pollutants.

• Releases filtered air back into the room.

• Uses built-in sensors to monitor particulate pollution, gases, temperature and humidity.

• Adjusts fan operation automatically when Auto Mode is selected.

• Supports app-based monitoring and controls through Wi-Fi connectivity.

Quick tips

• Choose the purifier according to room size and required purification performance.

• Run it consistently during periods of high indoor pollution.

• Keep the air inlet and outlet unobstructed.

• Position the appliance away from curtains and furniture that restrict airflow.

• Clean the pre-filter regularly according to the user manual.

• Replace the main filter with a compatible FY4200/30 replacement when required.

• Do not wash the HEPA or activated carbon filter unless explicitly permitted by the manufacturer.

• Keep windows and doors closed as much as practical during severe outdoor pollution.

• Use the app's supported features to monitor air quality and manage operation.

• Remember that air purification does not eliminate every indoor pollutant or replace proper ventilation and pollution-source control.

FAQ

What is the Philips AC4221 Air Purifier used for?

- It helps improve indoor air quality by filtering airborne dust, pollen, pet dander and fine particulate matter.

What is its CADR?

- The rated Clean Air Delivery Rate is 600 m³/hour.

What room size is suitable for this purifier?

- It is rated for rooms up to 72 m² under the GB/T testing standard.

Does it support Wi-Fi connectivity?

- Yes, the compatible model supports Wi-Fi connectivity and features through the Philips Air+ app.

Can it help during Delhi's pollution season?

- It can help reduce indoor airborne particulate pollution when used in a suitably sized room with appropriate operating conditions.

Does it remove household odours?

- The activated carbon filter helps reduce certain household odours and gaseous pollutants.

Which air quality parameters does it monitor?

- The specified sensors monitor PM2.5, gas, temperature and humidity.

How often should the filter be replaced?

- Filter replacement frequency depends on usage and pollution levels. Follow the filter indicator and manufacturer's instructions.

Can the HEPA filter be washed?

- Do not wash the HEPA or activated carbon filter unless the manufacturer specifically permits it.

Does it eliminate all allergens and viruses?

- No purifier should be assumed to eliminate all airborne contaminants. Performance depends on room size, airflow, operating conditions and filter maintenance.

How much electricity does it consume?

- Maximum rated power consumption is approximately 54W. Actual consumption varies with operating mode and usage duration.

Does it work as an air conditioner or humidifier?

- No. It filters airborne contaminants but does not provide air conditioning or humidification.