tuya-local/custom_components/tuya_local/devices/nac_ap470_purifier.yaml

name: Air purifier
products:
  - id: y7iiubdc5sufjvo3
    name: "NAC AP470 Air Purifier"
primary_entity:
  entity: fan
  icon: "mdi:air-purifier"
  dps:
    - id: 1
      type: boolean
      name: switch
    - id: 4
      type: string
      name: preset_mode
      mapping:
        - dps_val: 1
          value: Auto
        - dps_val: 2
          value: Sleep
        - dps_val: 3
          value: Level 1
        - dps_val: 4
          value: Level 2
        - dps_val: 4
          value: Level 3
        - dps_val: 6
          value: Level 4
    - id: 21
      name: fault_code
      type: bitfield
secondary_entities:
  - entity: sensor
    class: pm25
    dps:
      - id: 2
        type: integer
        name: sensor
        class: measurement
        unit: ugm3
  - entity: sensor
    name: Filter left days
    icon: "mdi:air-filter"
    category: diagnostic
    class: duration
    dps:
      - id: 16
        type: integer
        name: sensor
        unit: "d"
  - entity: sensor
    name: Total time
    icon: "mdi:air-filter"
    category: diagnostic
    class: duration
    dps:
      - id: 17
        type: integer
        name: sensor
        unit: "h"
  - entity: switch
    translation_key: ionizer
    category: config
    dps:
      - id: 6
        type: boolean
        name: switch
  - entity: lock
    translation_key: child_lock
    category: config
    dps:
      - id: 7
        type: boolean
        name: lock
  - entity: switch
    name: Disable light
    category: config
    icon: "mdi:lightbulb"
    dps:
      - id: 8
        type: boolean
        name: switch
  - entity: switch
    translation_key: uv_sterilization
    category: config
    dps:
      - id: 9
        type: boolean
        name: switch
  - entity: switch
    name: Filter clean
    category: config
    icon: "mdi:air-filter"
    dps:
      - id: 101
        type: boolean
        name: switch
  - entity: button
    name: Filter reset
    class: restart
    category: config
    dps:
      - id: 11
        type: boolean
        name: button
  - entity: select
    translation_key: timer
    category: config
    dps:
      - id: 19
        name: option
        type: string
        optional: true
        mapping:
          - dps_val: cancle
            value: cancel
          - dps_val: 2
            value: "2h"
          - dps_val: 4
            value: "4h"
          - dps_val: 6
            value: "6h"
          - dps_val: 8
            value: "8h"
  - entity: sensor
    translation_key: time_remaining
    class: duration
    category: diagnostic
    dps:
      - id: 20
        type: integer
        name: sensor
        unit: "min"
        optional: true