pm2_5 (concentration of small particles)

Last updated on June 23, 2026

Data type: INTEGER(0, 500)

Usage method: stores the device state without changing it.

Purpose: shows the current level of the particles PM2.5 in µg/m³ (micrograms per cubic meter). It takes a value from the range of 0-500 µg/m³ at an interval of 1 µg/m³.

When describing the device model, you can shorten the range of values accepted by the function or change their interval. For more information, see Allowed values of functions.

Devices with this function

sensor_air — air quality sensor.

Examples of voice commands

— Салют, какое качество воздуха в комнате? (Salute, what is the air quality in the room?)

— Салют, проверь концентрацию мелкой пыли в воздухе. (Salute, measure the level of small particles in the air.)

Function description for a device model

The function must be added to the model descriptions of all devices that support it.

"features": [
    "pm2_5",
    // ...
 ]

Function state description example

The example describes a sensor reporting that the PM2.5 level is 160 µg/m³.

{
    "states": [
        {
            "key": "pm2_5",
            "value": {
                "type": "INTEGER",
                "integer_value": "160"
            }
        }
    ]
}