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

name: Essentials air purifier
primary_entity:
  entity: switch
  icon: "mdi:air-purifier"
  dps:
    - id: 1
      type: boolean
      name: switch
secondary_entities:
  - entity: sensor
    name: Active filter life
    icon: "mdi:air-filter"
    category: diagnostic
    dps:
      - id: 5
        type: integer
        name: sensor
        unit: "%"
  - entity: lock
    name: Child lock
    category: config
    dps:
      - id: 7
        type: boolean
        name: lock
        mapping:
          - dps_val: true
            icon: "mdi:hand-back-right-off"
          - dps_val: false
            icon: "mdi:hand-back-right"
  - entity: select
    name: Light
    category: config
    dps:
      - id: 101
        name: option
        type: string
        mapping:
          - dps_val: Standard
            value: "On"
            icon: "mdi:lightbulb-on"
          - dps_val: Soft
            value: "Soft"
            icon: "mdi:lightbulb-on-outline"
          - dps_val: Close
            value: "Off"
            icon: "mdi:lightbulb-outline"
  - entity: switch
    name: UV sterilization
    category: config
    dps:
      - id: 9
        type: boolean
        name: switch
        mapping:
          - dps_val: true
            icon: "mdi:lightbulb"
          - dps_val: false
            icon: "mdi:lightbulb-outline"
  - entity: button
    name: Filter reset
    class: restart
    category: config
    dps:
      - id: 11
        type: boolean
        name: button
  - entity: select
    name: Timer
    icon: "mdi:timer"
    category: config
    dps:
      - id: 18
        name: option
        type: string
        mapping:
          - dps_val: cancel
            value: "Off"
          - dps_val: 2h
            value: "2 hours"
          - dps_val: 4h
            value: "4 hours"
          - dps_val: 8h
            value: "8 hours"
  - entity: sensor
    name: Timer
    icon: "mdi:timer"
    class: duration
    category: diagnostic
    dps:
      - id: 19
        type: integer
        name: sensor
        unit: "min"
  - entity: sensor
    class: pm25
    dps:
      - id: 2
        type: integer
        name: sensor
        class: measurement
        unit: ugm3
  - entity: sensor
    name: Air quality
    dps:
      - id: 21
        type: string
        name: sensor
  - entity: select
    name: Mode
    dps:
      - id: 3
        name: option
        type: string
        mapping:
          - dps_val: auto
            value: "Auto"
          - dps_val: "M"
            value: "Medium"
          - dps_val: "H"
            value: "High"
          - dps_val: "sleep"
            value: "Sleep"