LIFAair LA502 Smart Air Purifier User Manual

EN. Preface

Thank you for selecting LIFAair! You are about to enjoy superior Finnish technology and innovation for quality living.

Important Safety Information

• Only use attachments/accessories provided by the manufacturer.
• Keep the machine away from children to avoid accidents.
• Do not block any ventilation openings. Install the machine in accordance with the manufacturer's instructions.
• Ensure the machine stands upright; never operate it in other orientations.
• Unplug the machine when it is not being used for a long period.
• Do not use this machine in rooms with large temperature differences to avoid water condensation.
• Protect the power cord from being walked on or pinched.
• Switch off and unplug the machine before moving it or cleaning/replacing filters.
• Do not use this machine in high temperature and/or humidity environments, such as bathrooms.
• Never open the power adapter to avoid electric shock and warranty voidance.
• For user safety and product protection, do not sit or lean on the machine.
• Do not put objects into the movable portion, air inlet, or outlet.
• Do not place the product directly under air conditioning units to prevent condensed water droplets.
• Do not attempt to repair the product, except by professional maintenance personnel.
• To prevent electric shocks, follow the manual's cleaning and maintenance methods. Do not attempt maintenance in any other way.
• Ensure the machine is used only with the provided power supply unit.

Safety Marking Label: Located on the bottom plate of the product.

Apparatus Use: Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer. Exercise caution when moving a cart/apparatus combination to avoid tip-over injuries.

Correct Disposal: This marking indicates the product should not be disposed of with household waste in the EU. Recycle responsibly to promote sustainable reuse of material resources. Use return and collection systems or contact the retailer for environmental safe recycling.

Power Warning:

• Place the product near the power outlet.
• Ensure the operating voltage matches your local power supply (found on the product plate).
• Unplug the product during lightning storms or when unused for extended periods.
• The power supply may get hot under normal conditions; ensure good ventilation and exercise caution.
• Safety warning labels are on the housing, bottom, or power adapter.

Symbol Explanations:

• [High Voltage Symbol]: Alerts users to the presence of un-insulated dangerous voltage within the enclosure that may pose a risk of electric shock.
• [No User Serviceable Parts Symbol]: Warns users not to disassemble the enclosure; take the product to an authorized service center for repair.
• [Indoor Use Only Symbol]: Indicates the product is for indoor use only.

For Wireless Products:

• May generate shortwave radio frequencies that interfere with other electronic or medical equipment.
• Turn off the product when disallowed. Do not use in medical facilities, airplanes, gas stations, near automatic gates, fire alarm systems, or other automated devices.
• Do not use within a 20cm range of a pacemaker, as radio waves may affect its operation or other medical devices.

Battery Warning:

• [Warning Symbol]: Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type.
• Batteries must be properly recycled or disposed of. Disassembling products with built-in batteries is prohibited.
• Never disassemble, hit, squeeze batteries, or dispose of them in fire.
• Do not expose batteries to conductive materials, liquids, fire, or heat.
• Do not let metal objects contact battery poles.
• If a battery appears swollen, leaking, discolored, or has an odor, stop using it. Do not use after immersion in water.
• Improper battery use may lead to explosion or leakage, causing burns or injuries. Handle leaks with care and dispose of batteries according to local laws and regulations.

Packing List

• Air purifier main unit x1
• Activated carbon barrel x2
• HEPA filter x2
• Smart controller x1
• Power cord x1
• Instructions manual / Certificate x1
• Power adapter (for air purifier) x1
• Power adapter (for smart controller) x1
• Smart controller charging cable x1

Function Description

Main Unit

• Touch control surface: Used to change wind speed and enter pairing mode.
• Working status / power indicator:
  • Smart controller not connected: Green light slowly flashing (standby), Green light flashing (response touch control), Green light rapid flashing (pairing), Green light steady (operating).
  • Smart controller connected: White light slowly flashing (standby), White light flashing (response touch control), Light steady (operating).
• Air intake: Inlet for air to enter the unit.
• DC power connector: Connects to the power adapter.
• Bottom cover: Houses the filters.
• S/N: Serial Number.
• CODE: Device identification code for LIFAair APP remote control function.

Smart Controller

• Light sensor: Automatically adjusts display brightness based on ambient light.
• On/off key: Long press to switch on/off; short press to display time or switch screen off/on.
• Air suction inlet: Where air is drawn into the Smart controller.
• PM2.5 sensor air inlet: Inlet for PM2.5 sensor.
• Power connector: For dedicated charging power cable.
• Serial Number: For warranty purposes.
• Code: Device identification code for LIFAair APP remote control function.
• Air exhaust outlet: Outlet for air from the Smart controller.

Note: Do not block air intake and exhaust areas.

Initial Installation

1. Prepare the unit: Cover the ground with a soft towel or protective pad. Flip the main unit upside down while rotating the bottom cover to unlock. Ensure DC power is turned off.
2. Remove bottom cover.
3. Remove HEPA filter: Hold the top of the HEPA filter with both hands and lift to remove.
4. Remove activated carbon barrel: Open the protective bag to find the side handle of the activated carbon barrel. Take out the barrel (repeat for the second barrel at the bottom). Remove the protective bag from the carbon barrel.
5. Install HEPA filter: Place the HEPA filter into the carbon barrel.
6. Re-insert barrels: Put the carbon barrel and filter combination back into the main unit and gently shake it into place. Repeat steps for the second layer.
7. Close bottom cover.
8. Lock bottom cover: Rotate the bottom cover to the lock position.
9. Complete installation: Flip the main unit carefully back to the upright position.
10. Connect power supply: Remove the protective strip on the DC power connector, connect the power cord to the power adapter, and plug the adapter into the main unit. The main unit will enter standby mode with LED lights flashing slowly.

Note: Diagrams in this manual are schematics and may differ slightly from the final product.

Use

Correct Positioning

To optimize performance, ensure air inlets maintain a distance of over 20cm from walls and other obstructions.

Manual Control Wind Speed

The machine offers 121 wind speed settings. Accurate speed control reflects PM2.5 levels precisely.

• Increase speed: Touch the top surface of the main unit and rotate clockwise. Continue rotating until the power light remains constant (maximum speed).
• Decrease speed: Touch the top surface and rotate counter-clockwise. Continue rotating until the power light blinks slowly (entering standby mode at zero speed).

How to Pair Smart Controller with the Main Unit

Pairing

The smart controller connects to the main unit via Bluetooth. The machine is pre-paired at the factory, but if re-pairing is needed:

1. Plug in the main unit. Press and hold the on/off key on the smart controller to switch it on. The main unit's light turns green when powered on.
2. Slide the smart controller's touch surface counter-clockwise until the green light blinks slowly. Press and hold the 'o' position on the touch surface for over five seconds until the green light flashes rapidly. The main unit will pair within 30 seconds. Note: The main unit must be in standby mode (green light blinking slowly) for pairing.
3. On the smart controller screen, click 'Settings' then 'Pair' to initiate the self-pairing process between the smart controller and the main unit.
4. Pairing Completed: After successful pairing, the main unit's power/status indicator turns white, and the monitor prompts "Pairing Completed". If pairing fails, repeat the steps.

Note: Product updates may cause minor UI differences.

Smart Controller Tests

The smart controller monitors CO₂, formaldehyde (HCHO), PM2.5, temperature, and humidity. It displays air quality in six levels: good, moderate, unhealthy for sensitive groups, unhealthy, very unhealthy, and hazardous.

• CO₂: Touch "CO₂" for accurate carbon dioxide readings. Below 1000ppm is considered good. Ventilation is recommended for readings above this. Stabilization takes about 40 seconds.
• HCHO (Formaldehyde): Touch "HCHO" for formaldehyde concentration. China Standard: ≤ 0.08mg/m³; US Standard: ≤ 0.06mg/m³. The formaldehyde sensor can be affected by other gases like alcohol or perfume; stable readings indicate normal operation.
• PM2.5: Touch "PM2.5" for real-time measurements (approx. 20 seconds for a reading). China Standard: 75µg/m³; US Standard: 35µg/m³. The PM2.5 sensor is located at the top left corner behind the screen; ensure the air intake is unimpeded.
• TEMP: Touch "TEMP" to display the temperature reading.
• HUM: Touch "HUM" to display the relative humidity.
• Testing Mode: Touch "Testing Mode" to enable continuous monitoring for 5 minutes. Otherwise, the monitor measures for 1 minute upon touching the screen.

Note: When paired, the smart controller's white LED light is lit. It continues monitoring even when the screen displays the clock or is blank.

The Use of Smart Controller

The smart controller is central to the intelligent system. Ensure it remains paired with the main unit.

1. Control Panel

Click to enter mode selection:

• Auto mode: System auto-adjusts wind speed based on real-time indoor air quality (recommended).
• Sleep mode: Ultra-low noise operation for a comfortable sleep environment.
• Turbo mode: Runs at full speed for rapid purification (90 minutes, then switches to medium speed).
• Manual mode: Manually adjust wind speed.

Use the provided icons [Back Icon] and [Home Icon] to navigate.

Note: Touching the main unit surface manually adjusts wind speed for 5 minutes before reverting to auto mode. For full manual control, use the smart controller's manual mode. If the smart controller disconnects, the main unit maintains its last manual setting (green light). Manual mode is not recommended due to energy and filter waste.

2. Settings

Click on the monitor to access settings:

• Backlight Brightness: Adjust from 'Low' (dark mode) to 'High' (bright mode). The light sensor adjusts brightness automatically.
• AQI Standard: Select 'CN' or 'US' standard for air quality control. The US standard often results in stronger purification, especially at night.
• Night Light: Turn the nightlight function on or off. When enabled (22:00-06:00), touching the screen provides high-intensity illumination for 3 minutes.
• Remote Accessibility: Allow or prevent phone app control. 'Disabled' state allows only viewing.
• ECO mode: Enable smart ventilation detection. The operating mode adjusts based on window status to save energy and filter life (purification is less effective with open windows).
• Purifier Touch Control: Turn the touch function on or off to prevent accidental activation.
• Language settings: Select from English, 简体中文 (Simplified Chinese), or 繁體中文 (Traditional Chinese).
• Factory settings: Restores smart controller settings to factory defaults and disconnects Wi-Fi networks.
• Sensor Calibration: Perform zeroing for sensors according to on-screen tips to ensure accuracy.

3. Filter Checking

Click 'Filter' to enter the filter monitoring interface. Clean or replace filters when the percentage approaches 5%. After cleaning or replacing, click 'Reset' and confirm to restart the monitoring system.

• Pre Filter
• Activated Carbon Filter
• HEPA Filter

Note: The controller syncs to local time zone via Wi-Fi. Manual time setting is available if Wi-Fi sync is not applicable.

4. Clock Display / Adjustment

When plugged in, the smart controller displays the time like a screensaver. Pressing the on/off button also displays the time. The backlight/night light function operates from 22:00-06:00, showing the clock for three minutes.

In the clock display, click the right side of the screen to manually set the time.

Warnings

Main Unit Warnings

• [Tilted Unit Symbol]: If the main unit is tilted during operation, this screen appears on the smart controller, and the motor powers off automatically for safety. If filters are replaced, reset the filter life calculator.

Formaldehyde Reading Error

The formaldehyde sensor is sensitive to various gases. Abnormal readings may occur. If readings are consistently high after calibration in an outdoor environment, the issue might be non-formaldehyde gases or smells. Opening windows for 15 minutes is suggested. Re-calibrate if the problem persists.

Ventilation Warning

The smart controller may detect abnormalities when windows/doors are opened or when you leave home. The main unit stops working to save energy and filter life. Once ventilation stops or you return, the purifier will resume operation automatically. Manual override can also restart the unit.

Note: Ventilation status is detected only when the smart controller is in 'AUTO' mode.

Smart Controller and Wi-Fi Internet Networks

Follow these steps to connect your smart controller to Wi-Fi:

1. Download and install the LIFAair APP.
2. Scan QR code: Use your mobile phone to scan the QR code on the smart controller or the one provided in the manual.
3. Add Device: Open the LIFAair APP, click '+' to add a device.
4. Connect to Wi-Fi: Ensure your phone is connected to Wi-Fi. Enter the Wi-Fi password. The air purifier will connect to the same Wi-Fi network as your phone.
5. Connect Network: On the smart controller, click 'CONNECT network'. On the phone APP, click 'CONNECT network' when prompted.
6. Link Monitors: After successful internet connection, click the link to the monitors. Input the smart controller password (last six digits of the MAC code, found on the rear of the smart controller; not case-sensitive).

Upon successful connection, the phone can control the main unit and display current data from the smart controller.

Maintenance

Filter Replacement

Ensure the main unit is off and unplugged before replacing filters.

Refer to the "First Installation" section for filter removal. Take out the carbon barrels and HEPA filters, replace them, and then put them back into the main unit.

Clean the Prefilter

Remove the two carbon barrels. Clean the prefilter (outer surface of the carbon barrel) outdoors using a dry cleaner with a brush. Avoid using a wet towel, as it can clog the prefilter.

Filter Reset

After cleaning or replacing filters, press the 'Reset' button on the smart controller to confirm and restart the filter monitoring system.

Specifications

• Product Name: Smart Air Purifier
• Product Type: LA502
• Particle Clean Air Delivery Rate (CADR particulate matter): 450m³/h
• Particle Cumulate Clean Mass (CCM particulate matter): P4 level
• Particle Removal Efficiency: High efficient level
• Formaldehyde Clean Air Delivery Rate (CADR formaldehyde): 240m³/h
• Formaldehyde Cumulate Clean Mass (CCM formaldehyde): F4 level
• Formaldehyde Removal Efficiency: High efficient level
• Noise: <66dB (A)
• Application area: 31m² ~ 54m²
• Wi-Fi Frequency Band: 2.412GHz-2.484GHz
• Bluetooth Frequency Band: 2.402GHz-2.480GHz
• RF Power output: <20 dBm (EIRP)
• PM2.5 sensor: Laser type
• CO2 sensor: Dual thermopile type
• Formaldehyde Sensor: Electrochemical Smart type
• Temperature / Humidity Sensor: Semiconductor + Thermal Resistance type

Note: Application area is calculated based on CADR for particles per GB/T18801-2015. Performance data tested by third-party laboratories.

Troubleshooting

• Purifier not working? Check power cord connection, minimum wind speed setting, and bottom cover lock position.
• Running noise? Check filter installation and removal of protective bags from carbon barrels.
• Formaldehyde readings suddenly increase? This can be a normal phenomenon due to the sensor's sensitivity to other gases (alcohol, perfume, humidity). If interference persists, perform indoor sensor calibration via 'Settings' -> 'Sensor calibration' -> 'Formaldehyde sensor zeroing confirmation'.
• Formaldehyde or carbon dioxide have inaccurate readings? Use the following process: 'Settings' -> 'Sensor calibration'. Perform zeroing outdoors for 30 minutes. Then, use 'Testing Mode' on the smart controller to zero the formaldehyde and carbon dioxide sensors.