1. Introduction
This manual provides essential information for the safe and effective use of your Philips AC3858/63 WiFi Enabled Air Purifier. Please read these instructions carefully before operating the appliance and retain them for future reference. This air purifier is designed to improve indoor air quality by filtering out various airborne pollutants.

The Philips AC3858/63 Air Purifier features a sleek design with a grey and white finish, suitable for various home interiors. The top panel includes the control interface and air outlet.
2. Safety Information
Observe the following safety precautions to prevent electric shock, fire, or injury:
- Ensure the voltage indicated on the appliance matches the local power voltage before connecting.
- Do not block the air inlet or outlet. Maintain at least 20 cm clearance from walls or other appliances.
- Do not allow water or other liquids to enter the appliance.
- Unplug the appliance before cleaning or performing any maintenance.
- Keep the appliance out of reach of children.
- Do not use the appliance in wet environments or near heat sources.
3. Product Overview
The Philips AC3858/63 Air Purifier is equipped with advanced features for comprehensive air purification.
Key Features:
- VITASHIELD INTELLIGENT AUTO PURIFICATION: Removes 99.97% of airborne pollutants as small as 0.003 microns.
- AIRMID CERTIFICATION: Removes 99.9% bacteria and viruses, including airborne H1N1 virus.
- ECARF CERTIFICATION: Removes 99.99% pollen and house dust mites, tested for allergy-friendly quality.
- AERASENSE TECHNOLOGY: Automatically scans pollutants 60,000 times per minute for real-time filtration.
- APP CONTROL: Control the air purifier remotely using the Air+ app.
- INFORMATION AT A GLANCE: Numerical PM2.5, gases, and allergen levels display, ambient light ring indicator, and smart filter indicator.
- INSTANT PURIFICATION: High particle Clean Air Delivery Rate (CADR) of 550m³/h, purifying a 10m² room in less than 3 minutes. Covers up to 62 m² (710 sq ft).

This image highlights the key features of the Philips AC3858/63 Air Purifier, including its 520 m³/h Clean Air Delivery Rate (CADR), coverage up to 62 m² (710 sq ft), app control via Air+ App, real-time numerical pollutant level display, Night Mode, and a filter life of up to 25000 hours.
Filtration System:
The appliance utilizes a 3-stage filtration process to capture various pollutants.

This diagram details the three stages of filtration: a Pre-filter for human/pet hair, coarse dust, lint, and fibers; a Nano Protect HEPA filter for PM2.5, viruses, allergens, pet dander, and dust mites; and a Carbon Filter for smoke, VOCs, odors, and fumes.
4. Setup
Unpacking and Placement:
- Remove all packaging materials from the air purifier.
- Place the air purifier on a stable, level surface.
- Ensure there is at least 20 cm of free space around the appliance for optimal air circulation.
Filter Installation:
The filters are typically pre-installed but may require removal of protective packaging. Refer to the filter compartment access instructions in the full manual for details.
Power Connection:
Plug the power cord into a grounded electrical outlet.
WiFi Setup (Air+ App):
- Download the Philips Air+ app from your smartphone's app store.
- Follow the in-app instructions to connect your air purifier to your home WiFi network.
- Once connected, you can control the air purifier and monitor air quality remotely.
5. Operating Instructions
Power On/Off:
Press the power button on the control panel or use the Air+ app to turn the appliance on or off.
Operating Modes:
- Auto Mode: The air purifier automatically adjusts fan speed based on detected air quality.
- Night Mode: Operates at a reduced fan speed with dimmed display lights for quiet operation during sleep.
- Manual Speed: Select your desired fan speed.

The air purifier is shown operating in a bedroom at night, emphasizing its 'Whisper Quiet operation' and 'Ambient night control in night mode' for undisturbed sleep.
Display Information:
The digital display on the top panel shows real-time air quality data, including PM2.5 levels, gas levels, and allergen levels. The ambient light ring provides a visual indication of air quality.
6. Maintenance
Filter Replacement:
The smart filter indicator will notify you when a filter needs replacement. The integrated HEPA+Active Carbon filter has a life of up to 25,000 hours. Always use genuine Philips replacement filters.
- Unplug the air purifier.
- Open the filter access panel (refer to the full manual for specific instructions).
- Remove the old filter and dispose of it properly.
- Insert the new filter, ensuring it is correctly seated.
- Close the filter access panel and plug in the air purifier.
- Reset the filter lifetime indicator as per the instructions in the full manual or via the Air+ app.
Cleaning:
- Wipe the exterior of the appliance with a soft, dry cloth.
- Clean the air inlet and outlet grilles regularly to prevent dust buildup.
- Do not use abrasive cleaning agents or solvents.
7. Troubleshooting
If you encounter issues with your air purifier, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn on. | Power cord not connected; no power at outlet. | Ensure power cord is securely plugged in. Check power outlet. |
| Poor air purification performance. | Filters are dirty or expired; air inlets/outlets blocked. | Check and replace filters if necessary. Ensure air inlets/outlets are clear. |
| WiFi connection issues. | Incorrect WiFi password; out of range; router issues. | Verify WiFi password. Move appliance closer to router. Restart router. Refer to Air+ app for detailed connection steps. |
For further assistance, consult the full user manual or contact Philips customer support.
8. Specifications
| Specification | Detail |
|---|---|
| Model Number | AC3858/63 |
| Dimensions (D x W x H) | 37D x 37W x 78.4H Centimeters |
| Item Weight | 8 kg 10 g |
| Floor Area Coverage | Up to 62 m² (710 Square Feet) |
| Clean Air Delivery Rate (CADR) | 550 m³/h |
| Filter Type | Integrated HEPA + Active Carbon Filter |
| Filter Life | Up to 25,000 hours |
| Noise Level | 57 Decibels (Max) |
| Controller Type | Mobile app |
| Color | Grey & White |

This image provides the physical dimensions of the air purifier: 78.4 cm in height, and 37 cm in both depth and width.
9. Warranty and Support
Your Philips AC3858/63 Air Purifier comes with a 2-year worldwide warranty and free home service. For warranty claims, technical support, or service inquiries, please contact Philips customer support through their official website or the contact information provided in your product packaging.
Always refer to the official Philips website or your purchase documentation for the most up-to-date warranty terms and conditions.