Home Assistant is getting a native integration for HAVEN IAQ, a maker of indoor air quality monitors from Burnaby, British Columbia, that sells to homeowners as well as to HVAC professionals. Joost Lekkerkerker merged it into the development branch at 22:31 UTC on 18 October (00:31 Polish time on the 19th), almost three months after GitHub user krhtzoa opened the pull request in July. The documentation lists it for Home Assistant 2026.11, due in early November.

Two monitors, polled on the local network

The integration supports two products. The Room Air Monitor is meant for a single room, and HAVEN's store sells the homeowner version for $200. The Central Air Monitor is a probe for ducted forced-air systems. According to HAVEN's installation guide it goes into the return duct, ideally about 2 feet upstream of the furnace filter, draws 24 V AC from the furnace or a plug-in transformer and needs at least 0.4 m/s of airflow to report reliable data.

Home Assistant talks to both over plain HTTP on the local network and asks each device for new data once a minute. No HAVEN cloud account is involved. Devices are found through zeroconf discovery, or you can type in a hostname or IP address.

What you get depends on the model:

  • Room Air Monitor: temperature, humidity, dew point, carbon dioxide, a total VOC index, a nitrogen oxides index, PM1.0, PM2.5, PM4.0 and PM10 mass concentration, plus particle counts from PM0.5 to PM10.
  • Central Air Monitor: temperature, humidity, pressure, carbon dioxide, total VOC concentration, PM2.5 and PM10 mass concentration and particle counts, airflow and airflow duration.

Particle count entities are disabled by default on both models, so enable them if you want them. The airflow readings from the duct probe are the unusual part, since an automation could use them to check whether the air handler is actually moving air.

What you need first

  • Firmware 19 or later on the Room Air Monitor, or 2.4.2 or later on the Central Air Monitor.
  • Home Assistant switched on for each device in the HAVEN app. This turns on the device's local HTTP API, which is off by default.
  • Home Assistant and the monitor on the same network.

The documentation warns that the traffic is unencrypted and that the device's HTTP port should never be exposed to the internet.

Not in the first version

The integration starts at the Silver level of Home Assistant's quality scale and only provides sensors. The pull request leaves out the HAVEN Controller, which HAVEN sells to automate ventilation and filtration, as well as relay control, diagnostics and reconfiguration. The author says those can be considered separately. For now, if you want the fan or air purifier to react to the readings, you build that automation in Home Assistant with your own devices.