1. Introducció
Thank you for choosing the Xiaomi Smart Air Purifier 4. This device is designed to provide clean and healthy air in your home by effectively removing various airborne pollutants. Please read this manual thoroughly before use and retain it for future reference.

Image 1.1: Xiaomi Smart Air Purifier 4, front view.
2. Informació de seguretat
To prevent electric shock, fire, or other damage, please read the following safety precautions carefully before using the appliance:
- Always use the power adapter provided with the device.
- Do not place the air purifier near heat sources or in direct sunlight.
- Mantingueu el dispositiu allunyat de l'aigua o altres líquids. No el feu funcionar amb les mans mullades.
- Ensure proper ventilation around the device. Do not block air inlets or outlets.
- Aquest aparell el poden utilitzar nens a partir de 8 anys i persones amb capacitats físiques, sensorials o mentals reduïdes o amb manca d'experiència i coneixements si han rebut supervisió o instruccions sobre l'ús de l'aparell d'una manera segura i entenen els perills que comporta. .
- Els nens han de ser supervisats per assegurar-se que no juguin amb l'aparell.
- Desendolleu el purificador d'aire abans de netejar-lo o fer-ne cap manteniment.
3. Producte acabatview
The Xiaomi Smart Air Purifier 4 is equipped with advanced features to ensure optimal air quality.
Característiques principals:
- Filtració d'alta eficiència: PCADR 500 m³/h and FCADR 185 m³/h, capable of removing 99.97% of particles as small as 0.3 microns, including pet dander, dust, pollen, smoke, and VOCs.
- Generador d'ions negatius: Helps to purify the air, creating a fresh indoor environment.
- Control intel·ligent: Compatible with the Mi Home app, Google Assistant, and Amazon Alexa for convenient remote and voice control.
- Sensors d'alta precisió: Integrated PM2.5 and PM10 laser sensors detect environmental influences in real-time.
- Pantalla OLED: Real-time display of air quality (PM2.5, PM10), temperature, humidity, Wi-Fi status, and current operating mode.
- Múltiples modes de neteja: Includes Automatic, Preferred, Sleep, Low, Medium, High, and Preferred.
- Manteniment fàcil: The top air outlet grille is detachable for easy cleaning.
- Long-Lasting Filter: Filter lifespan of up to 12 months.
Components:
Familiarize yourself with the main parts of your air purifier:
- Top Air Outlet Grille
- OLED Display / Control Panel
- Air Inlet (sides and back)
- Filter Compartment (bottom rear)
- Port del cable d'alimentació

Imatge 3.1: acabatview of the Xiaomi Smart Air Purifier 4 highlighting its performance.

Image 3.2: Illustration of the air purifier's filtration capability, trapping 99.97% of particles.
4. Configuració
Segueix aquests passos per configurar el teu purificador d'aire:
- Desempaquetar el dispositiu: Carefully remove the air purifier from its packaging. Remove all protective films and packaging materials.
- Trieu una ubicació: Place the air purifier on a flat, stable surface. Ensure there is at least 20 cm of clearance from walls or other objects to allow for proper airflow. Avoid placing it in direct sunlight or near heat sources.
- Instal·leu el filtre:
- Open the filter compartment cover, usually located at the rear or bottom of the unit.
- Remove the new filter from its protective plastic bag.
- Insert the filter into the compartment, ensuring it is correctly oriented.
- Tanqueu bé la tapa del compartiment del filtre.
- Connecteu-vos a l'alimentació: Connecteu el cable d'alimentació al port d'alimentació del purificador d'aire i, a continuació, connecteu l'altre extrem a una presa de corrent adequada.
- Encesa inicial: The device will typically power on automatically or require a press of the power button on the OLED display.

Imatge 4.1: posterior view of the air purifier, indicating the filter compartment.
5. Instruccions de funcionament
The Xiaomi Smart Air Purifier 4 can be operated via its touch-sensitive OLED display or through the Mi Home app.
5.1. OLED Display and Control Panel
The circular OLED display on the front of the unit serves as both an information display and a control panel.
- Encès/apagat: Press and hold the button on the OLED display to turn the purifier on or off.
- Canvi de mode: Briefly press the button to cycle through different operating modes: Automatic, Sleep, Low, Medium, High, and Preferred.
- Mostra informació: The screen shows real-time PM2.5/PM10 levels, temperature, humidity, Wi-Fi status, and current operating mode.

Image 5.1: Close-up of the OLED display showing air quality readings.
5.2. Smart Control with Mi Home App
For advanced control and smart features, download the Mi Home app on your smartphone.
- Descarregar l'aplicació: Cerca "Mi Home" in your app store (Google Play Store or Apple App Store).
- Afegeix un dispositiu: Open the app, log in or create an account, and follow the on-screen instructions to add your Xiaomi Smart Air Purifier 4. Ensure your phone is connected to a 2.4 GHz Wi-Fi network during setup.
- Característiques de l'aplicació: A través de l'aplicació, pots:
- Remotely control power and operating modes.
- Monitor real-time air quality, temperature, and humidity.
- Establir horaris i temporitzadors.
- Adjust fan speed in Preferred mode.
- Check filter lifespan and order replacements.
- Integrate with other Xiaomi smart home devices.

Image 5.2: The air purifier controlled via the Mi Home app on a smartphone.
5.3. Voice Control (Google Assistant & Amazon Alexa)
Once connected to the Mi Home app, you can link your air purifier to Google Assistant or Amazon Alexa for voice commands.
- Enllaç de comptes: Follow the instructions in the Google Home app or Amazon Alexa app to link your Mi Home account.
- Comandaments de veu: Utilitzeu ordres com ara:
- "Hey Google, turn on the air purifier."
- "Alexa, set the air purifier to auto mode."
- "Hey Google, what is the air quality?"
6. Manteniment
Un manteniment regular garanteix un rendiment òptim i allarga la vida útil del purificador d'aire.
6.1. Substitució del filtre
The filter has a lifespan of up to 12 months, depending on usage and air quality. The Mi Home app will notify you when a replacement is needed.
- Apagueu i desconnecteu: Always turn off and unplug the air purifier before replacing the filter.
- Open Filter Compartment: Obriu la tapa del compartiment del filtre.
- Elimina el filtre antic: Carefully pull out the used filter. Dispose of it according to local regulations.
- Instal·la un filtre nou: Remove the new filter from its packaging and insert it into the compartment.
- Compartiment tancat: Tanqueu bé la tapa del compartiment del filtre.
- Restableix la vida útil del filtre: After replacement, plug in and power on the purifier. Reset the filter life counter via the Mi Home app or by following instructions on the OLED display (if available).

Image 6.1: The high-efficiency filter for the Xiaomi Smart Air Purifier 4.
6.2. Cleaning the Air Purifier
Regularly clean the exterior and air outlets to prevent dust buildup.
- Exterior: Netegeu les superfícies exteriors amb un damp tela. No utilitzeu netejadors abrasius ni dissolvents.
- Top Air Outlet Grille: The top grille is detachable. Gently remove it and clean any accumulated dust with a soft brush or vacuum cleaner. Ensure it is dry before reattaching.
- Neteja del sensor: Periodically clean the PM2.5/PM10 sensor located on the side or rear of the unit. Use a dry cotton swab to gently wipe the sensor lens.
7. Solució De Problemes
Si teniu problemes amb el purificador d'aire, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s’encén. | El cable d'alimentació no està connectat correctament. No hi ha alimentació de la presa de corrent. | Check if the power cord is securely plugged into both the purifier and the wall outlet. Test the outlet with another device. |
| Mal rendiment de purificació de l'aire. | Filter is dirty or expired. Air inlets/outlets are blocked. Room size exceeds capacity. | Replace the filter. Ensure no obstructions around the air inlets/outlets. Confirm the purifier is suitable for your room size (up to 40 m²). |
| Soroll inusual durant el funcionament. | Foreign object inside. Filter not installed correctly. Device not on a stable surface. | Turn off and unplug the device. Check for any foreign objects. Reinstall the filter. Place the purifier on a flat, stable surface. |
| Cannot connect to Mi Home app. | Incorrect Wi-Fi password. Router is 5GHz only. Device too far from router. | Ensure correct Wi-Fi password. Connect your phone to a 2.4 GHz Wi-Fi network. Move the purifier closer to the router. Reset Wi-Fi on the purifier (refer to app instructions). |
| OLED display is not working. | Device is off. Display brightness is too low. | Ensure the device is powered on. Adjust display settings via the Mi Home app. |
Si el problema persisteix després de provar aquestes solucions, poseu-vos en contacte amb l'atenció al client.
8. Especificacions
| Marca | Xiaomi |
| Número de model | AC-M15-SC |
| Dimensions del producte (L x A x A) | 25 x 25 x 55.5 cm |
| Pes de l'article | 12 grams |
| Color | Blanc |
| PCADR | 500 m³/h |
| FCADR | 185 m³/h |
| Àrea de cobertura | Fins a 40 m² |
| Nivell de soroll | 33.7 Decibels (in Sleep Mode) |
| Tipus de filtre | HEPA |
| Mètode de control | Touch, Mobile App, Voice Control |
| Característiques especials | Negative Ions, Smart Control (Google Assistant, Amazon Alexa) |
9. Garantia i Suport
Your Xiaomi Smart Air Purifier 4 comes with a 2 any de garantia des de la data de compra. Aquesta garantia cobreix els defectes de fabricació en condicions d'ús normal.
For warranty claims, technical support, or general inquiries, please refer to the official Xiaomi support channels or contact your retailer.
- Assistència en línia: Visita la pàgina oficial de Xiaomi weblloc per a preguntes freqüents, guies de resolució de problemes i informació de contacte.
- Atenció al client: Refer to the contact details provided with your purchase or on the Xiaomi official weblloc per a la vostra regió.

Image 9.1: Service commitments including 2-year warranty and local support.





