1. Introducció
Thank you for choosing the Xiaomi 4 Lite Smart Air Purifier. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your device. Please read this manual thoroughly before use and retain it for future reference.

Imatge: Frontal view of the Xiaomi 4 Lite Smart Air Purifier alongside a smartphone displaying the Xiaomi Home app interface, highlighting its smart control capabilities.
2. Precaucions de seguretat
To reduce the risk of electric shock, fire, or injury, please observe the following safety instructions:
- No bloquegeu les entrades o sortides d'aire.
- Do not use the purifier in humid environments or near water.
- Ensure the power cord is not damaged or placed under heavy objects.
- Desconnecteu el dispositiu abans de netejar-lo o fer-ne el manteniment.
- Mantenir fora de l'abast dels nens i mascotes.
3. Producte acabatview
The Xiaomi 4 Lite Smart Air Purifier is designed to provide clean air for your home, featuring a multi-layer filtration system and smart control options.
3.1 Característiques clau
- Àrea de cobertura gran: Effective for areas up to 462 Sq.ft.
- Real-time AQI Display: LED display shows Air Quality Index, temperature, humidity, and Wi-Fi status.
- Triple Layer Filtration: Primary, True HEPA, and Activated Carbon filters capture 99.99% of 0.1µm particles.
- Control intel·ligent: Monitor and control via Xiaomi Home app, Amazon Alexa, and Google Assistant.
- Funcionament de baix soroll: Operates quietly, suitable for bedrooms.
- TÜV Allergy Care Certified: Certified for superior quality in allergy care.

Imatge: Lateral view of the Xiaomi 4 Lite Smart Air Purifier, showcasing el seu disseny compacte.
3.2 Components
- Unitat de purificació d'aire
- Air Purifier Filter (Pre-Installed)
- Manual d'usuari
4. Guia de configuració
4.1 Desembalatge
- Traieu amb cura el purificador d'aire del seu embalatge.
- Traieu totes les pel·lícules protectores i els materials d'embalatge.
- Open the filter compartment cover and ensure the filter is properly seated and any plastic wrapping is removed from the filter itself.
4.2 Filter Installation (if not pre-installed or for replacement)
- Apagueu i desconnecteu el purificador d'aire.
- Locate the filter compartment cover, usually at the back or bottom of the unit.
- Open the cover and remove the old filter (if applicable).
- Unwrap the new filter from its protective plastic bag.
- Insert the new filter into the compartment, ensuring it is correctly oriented.
- Tanqueu bé la tapa del compartiment del filtre.

Image: Diagram illustrating the triple-layer filtration system of the Xiaomi 4 Lite Smart Air Purifier, showing the primary, True HEPA, and activated carbon filters.
4.3 Col·locació
- Col·loqueu el purificador d'aire sobre una superfície plana i estable.
- Ensure there is at least 20 cm of clear space around the air inlets and outlets for optimal airflow.
- Avoid placing it directly next to walls or furniture that might obstruct airflow.
4.4 Connexió d'alimentació
Plug the power cord into a suitable electrical outlet. The device will enter standby mode.
5. Instruccions de funcionament
5.1 Encès/Apagat
Press the power button on the top of the unit to turn the air purifier on or off.
5.2 Selecció del mode
Cycle through operating modes by pressing the mode button (often integrated with the power button or a separate button on the display):
- Mode automàtic: Adjusts fan speed automatically based on real-time AQI.
- Mode de repòs: Operates at the lowest noise level for quiet environments.
- Mode manual: Allows manual adjustment of fan speed.

Image: Close-up of the LED display on the Xiaomi 4 Lite Smart Air Purifier, showing real-time AQI, temperature, and humidity readings.
5.3 Control intel·ligent (aplicació Xiaomi Home)
- Download the "Xiaomi Home" app from your smartphone's app store.
- Creeu un compte o inicieu sessió.
- Add your Xiaomi 4 Lite Smart Air Purifier by following the in-app instructions.
- Once connected, you can monitor AQI, control fan speed, set schedules, and adjust screen brightness remotely.

Image: A smartphone screen displaying the Xiaomi Home app interface, showing options for auto, sleep, and manual modes, filter status, and scheduling.
5.4 Control per veu (Alexa i Assistent de Google)
The air purifier supports voice commands via Amazon Alexa and Google Assistant. Link your Xiaomi Home account to your smart home assistant app and use commands like "Alexa, turn on the air purifier" or "Hey Google, set air purifier to auto mode."

Image: The Xiaomi 4 Lite Smart Air Purifier positioned in a living space, with logos for Google Assistant and Amazon Alexa, indicating voice control compatibility.
6. Manteniment
Un manteniment regular garanteix un rendiment òptim i allarga la vida útil del purificador d'aire.
6.1 Neteja de la unitat
- Desconnecteu sempre el purificador d'aire abans de netejar-lo.
- Netegeu l'exterior amb un suau, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
- Gently clean the air inlet and outlet grilles with a soft brush or vacuum cleaner to remove dust.
6.2 Substitució del filtre
The filter replacement indicator on the LED display or in the Xiaomi Home app will notify you when it's time to change the filter. Typically, filters last 6-12 months depending on usage and air quality.
- Apagueu i desconnecteu el purificador d'aire.
- Obriu la tapa del compartiment del filtre.
- Remove the used filter. Dispose of it according to local regulations.
- Install a new, genuine Xiaomi filter (refer to section 4.2 for detailed steps).
- After replacing, reset the filter lifespan counter via the Xiaomi Home app or by pressing and holding the reset button (if available) on the unit.

Imatge: Una imatge detallada view of the cylindrical filter used in the Xiaomi 4 Lite Smart Air Purifier, highlighting its pleated structure for efficient air filtration.
7. Solució De Problemes
If you encounter issues with your air purifier, refer to the following table:
| Problema | Causa possible | Solució |
|---|---|---|
| El purificador no s'encén | No connectat; Apagattage; Power button not pressed | Check power connection; Check power supply; Press power button firmly |
| Pobre rendiment de purificació | Filter is dirty or expired; Air inlets/outlets blocked; Room size too large | Replace filter; Clear obstructions; Use in recommended room size |
| Soroll inusual | Foreign object inside; Filter not installed correctly; Unit not on a flat surface | Unplug and check for objects; Reinstall filter; Place on flat surface |
| No es pot connectar a l'aplicació | Wi-Fi issue; Incorrect pairing steps; App version outdated | Check Wi-Fi signal; Follow app pairing guide; Update Xiaomi Home app |
Si el problema persisteix, poseu-vos en contacte amb l'atenció al client.
8. Especificacions
| Característica | Detall |
|---|---|
| Número de model | BHR5992IN |
| Marca | MI |
| Color | Blanc |
| Dimensions del producte | 24P x 24A x 53.5H centímetres |
| Cobertura de la superfície del sòl | Fins a 462 peus quadrats |
| Nivell de soroll | 32.1 dB (as low as 33.4dB(A) in sleep mode) |
| Mida de retenció de partícules | 0.3 Micrometer (99.97% elimination) |
| Tipus de controlador | Amazon Alexa, Android, Button Control, Google Assistant, Remote Control (via app) |
| Wattage | 33 watts |
| Pes de l'article | 4 kg 800 g |
| Certificació | RoHS Certified, TÜV Allergy Care Certified |
9. Garantia i Suport
9.1 Informació de la garantia
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included in your packaging for specific terms and conditions. Keep your purchase receipt as proof of purchase for warranty claims.
9.2 Atenció al client
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Xiaomi customer support. Contact details can typically be found on the official Xiaomi weblloc web o l'embalatge del producte.
You may also visit the official MI Store on Amazon for product information and support: MI Store