Automation ideas for ES1

This page shows a few example automations you can build in Home Assistant with ES1. You can adapt the YAML examples directly or convert them into blueprints.

Before you start, make sure ES1 is connected to Home Assistant and that you can see entities such as State, CO2, PM <2.5µm Weight concentration, VOC, and Indicator Light.

Use the overall State as a traffic light

The simplest way to automate on air quality is to use the overall State entity.

Example: notify when air quality becomes poor

This automation sends a notification when overall air quality changes to poor.


alias: "ES1 – Notify when air quality is poor"
trigger:
  - platform: state
    entity_id: sensor.state
    to: "poor"
condition: []
action:
  - service: notify.mobile_app_your_phone
    data:
      title: "Air quality alert"
      message: "Air quality is poor according to ES1. Consider opening a window or increasing ventilation."
mode: single

If your State entity has a different ID (for example sensor.airlytix_es1_state), replace sensor.state with that value.

Control ventilation based on CO2

Example: boost ventilation when CO2 is high

This automation turns on a fan when CO2 is high and turns it off again when levels recover.


alias: "ES1 – Ventilation based on CO2"
trigger:
  - platform: numeric_state
    entity_id: sensor.co2
    above: 1200
  - platform: numeric_state
    entity_id: sensor.co2
    below: 900
condition: []
action:
  - choose:
      - conditions:
          - condition: numeric_state
            entity_id: sensor.co2
            above: 1200
        sequence:
          - service: switch.turn_on
            target:
              entity_id: switch.ventilation_fan
      - conditions:
          - condition: numeric_state
            entity_id: sensor.co2
            below: 900
        sequence:
          - service: switch.turn_off
            target:
              entity_id: switch.ventilation_fan
mode: restart

You can also use CO2 State instead of raw ppm if you prefer to base decisions on the configured Good/Fair/Poor bands.

React to PM2.5 spikes

Example: run air purifier on PM2.5

This automation turns on an air purifier when PM2.5 is poor and turns it off once it returns to good.


alias: "ES1 – Purifier on PM2.5"
trigger:
  - platform: state
    entity_id: sensor.pm_2_5_state
    to: "poor"
  - platform: state
    entity_id: sensor.pm_2_5_state
    to: "good"
condition: []
action:
  - choose:
      - conditions:
          - condition: state
            entity_id: sensor.pm_2_5_state
            state: "poor"
        sequence:
          - service: switch.turn_on
            target:
              entity_id: switch.air_purifier
      - conditions:
          - condition: state
            entity_id: sensor.pm_2_5_state
            state: "good"
        sequence:
          - service: switch.turn_off
            target:
              entity_id: switch.air_purifier
mode: restart

Adjust the entity IDs to match your PM2.5 state sensor and air purifier switch.

Use VOC and NOx to improve kitchen and cleaning routines

Example: boost kitchen extraction on VOC/NOx events

This automation runs a kitchen extractor when either VOC or NOx becomes poor.


alias: "ES1 – Kitchen extraction on VOC/NOx"
trigger:
  - platform: state
    entity_id: sensor.voc_state
    to: "poor"
  - platform: state
    entity_id: sensor.nox_state
    to: "poor"
condition: []
action:
  - service: fan.turn_on
    target:
      entity_id: fan.kitchen_extractor
  - delay: "00:20:00"
  - service: fan.turn_off
    target:
      entity_id: fan.kitchen_extractor
mode: restart

You can refine this by adding time‑of‑day conditions or by requiring both VOC and NOx to be poor at the same time.

Quiet hours based on sound level

Example: alert when it stays noisy at night

This automation notifies you if average sound level stays above a threshold during configured quiet hours.


alias: "ES1 – Quiet hours noise alert"
trigger:
  - platform: numeric_state
    entity_id: sensor.ambient_sound_level_laeq_1min
    above: 45
condition:
  - condition: time
    after: "22:00:00"
    before: "07:00:00"
action:
  - service: notify.mobile_app_your_phone
    data:
      title: "Noise alert"
      message: "Average sound level is above 45 dB during quiet hours."
mode: single

Adjust the threshold and times to match your household.

Blueprint example: simple State‑based alert

You can package the overall State alert into a Home Assistant blueprint to reuse it across installs.


blueprint:
  name: ES1 – State alert
  description: "Send a notification when ES1 State becomes fair or poor."
  domain: automation
  input:
    es1_state:
      name: ES1 State entity
      selector:
        entity:
          domain: sensor
    notify_target:
      name: Notification service
      selector:
        text:
          multiline: false
 
  trigger:
    - platform: state
      entity_id: !input es1_state
      to: "fair"
    - platform: state
      entity_id: !input es1_state
      to: "poor"
  action:
    - service: !input notify_target
      data:
        title: "ES1 air quality alert"
        message: >-
          Air quality is now {{ states(es1_state) }} according to ES1.
  mode: restart

To use this blueprint:

Save it as a YAML file in your Home Assistant blueprints/automation folder.
Reload blueprints in Home Assistant.
Create a new automation from this blueprint and select your ES1 State entity and preferred notification service.

These examples are starting points. You can combine ES1 data with presence, weather, and other sensors to build more advanced automations tailored to your home.