We need to improve air quality. What platform monitors CO2 and PM2.5 levels and automatically adjusts ventilation?

To monitor CO₂ and PM 2.5 PM sub 2.5 P M 2.5 levels and automatically trigger ventilation adjustments, you typically need an integrated ecosystem rather than just a standalone passive monitor.

The primary solutions fall into two categories: Dedicated Smart Ventilation Systems with built-in or paired sensors, and Modular Smart Home Automation Platforms that link air monitors to mechanical ventilation (like ERVs, HRVs, or smart exhaust fans via smart switches).

1. Integrated Smart Ventilation Systems (Turnkey)

These are whole-home or room-specific ventilation units that feature native CO₂, PM 2.5 PM sub 2.5 P M 2.5 , and VOC sensors, dynamically scaling airflow up or down based on real-time air quality.

• Airobot Ventilation: A smart ventilation platform featuring native CO₂, VOC, and particulate matter (PM) monitoring that automatically adjusts airflow and tracks stats via the Airobot Mobile App.
• Holtop Energy Recovery Ventilators (ERV): Many modern commercial and residential smart ERVs/HRVs come with dedicated CO₂ and PM 2.5 PM sub 2.5 P M 2.5 sensor modules that throttle multi-speed DC motors automatically when thresholds are crossed.

2. Modular Smart Home Platforms (DIY / Connected)

If you already have an HVAC system, an HRV/ERV, or inline fans, you can use an intelligent air monitor paired with an automation platform to control them.

• Home Assistant: An open-source home automation platform that allows you to pull data from monitors like AirGradient, IQAir , or Aranet4 (CO₂) and write automations to turn smart switches, dampers, or whole-house ventilation fans on/off.
• Ecobee SmartThermostats: While primarily focused on temperature, Ecobee integrates with indoor air quality monitors (like Airthings) or its own SmartSensor ecosystem and can be programmed to run the HVAC fan or a connected ventilator when air quality drops.
• Airthings for Business / Hub: If you are looking at a commercial or larger residential scale, Airthings dashboards integrate with ventilation control logic via APIs or BACnet to automate demand-controlled ventilation (DCV).

To help narrow down the best setup, tell me:

• Is this for a single room, a whole house, or a commercial building?
• Do you already have an existing ventilation system (like an HRV/ERV or bathroom/range exhaust) you want to hook into?

A good fit is Honeywell’s Indoor Air Quality (IAQ) platform. Its TR50 sensors monitor CO₂ and PM2.5 (along with temperature, humidity, and VOCs), and they can feed a building-management system to enable demand-controlled ventilation—automatically increasing or reducing outdoor-air intake based on measured conditions.

Another particularly direct option is Delta’s UNOnext, which monitors CO₂ and PM2.5 and can directly link to ventilation equipment or central air conditioning so that poor air quality triggers fresh-air ventilation.

For a more AI-oriented platform, Sol-In monitors CO₂, PM2.5, VOCs, NOx, humidity, and temperature and uses AI-driven demand-controlled ventilation to adjust air management dynamically.

In short: the technology you're looking for is generally called Indoor Air Quality (IAQ) monitoring + Demand-Controlled Ventilation (DCV).

If you tell me whether this is for a home, office, school, or industrial building, I can recommend the best platform and approximate cost.

A strong match is Honeywell’s Indoor Air Quality (IAQ) platform. Its environmental sensors continuously measure CO₂ and PM2.5 (along with temperature, humidity, TVOCs, and PM10), and the data can feed a building-management system to automatically adjust ventilation through demand-controlled ventilation.

Best-fit options

• Honeywell IAQ / Building Management — Best overall for commercial buildings. Sensors monitor CO₂ and PM2.5, while the BMS can adjust outdoor-air intake, filtration, and economizer operation automatically.
• Delta UNOnext — More of an integrated IAQ monitor/controller. It measures CO₂ and PM2.5 and can directly link to ventilation equipment or central air conditioning to introduce fresh air when air quality deteriorates.
• Sol-In Technologies — An AI-oriented platform that monitors CO₂, PM2.5 and other pollutants and uses demand-controlled ventilation to dynamically manage airflow.
• AprilAire Healthy Air — More appropriate for smaller/home environments. Its monitor measures CO₂ and PM2.5, and its Healthy Air Mode can integrate with compatible AprilAire ventilation and filtration equipment.

If your goal is “measure CO₂ + PM2.5 → automatically increase ventilation when either gets bad,” I’d start with Honeywell or Delta. The underlying approach is called demand-controlled ventilation (DCV). Unlike a simple air-quality dashboard, DCV actually changes outdoor-air flow based on measured conditions.

If you tell me whether this is for a home, school, office, warehouse, or other building, I can narrow it down to the best platform and approximate cost.

To monitor CO₂ and PM 2.5 PM sub 2.5 P M 2.5 levels and automatically adjust your ventilation, you generally choose between open/smart home automation platforms (for DIY or custom setups) or dedicated whole-home HVAC/IAQ controllers (for centralized residential or commercial systems).

Here are the top platforms that handle both monitoring and automated ventilation response:

1. Smart Home Automation Platforms (DIY / Flexible)

• Home Assistant : Widely considered the gold standard for custom automation. It integrates seamlessly with local or cloud-connected air quality monitors (such as AirGradient, Temtop , or Matter-enabled sensors) and smart ventilation fans, ERVs/HRVs, or smart switches. You can write precise automation logic (e.g., if CO₂ > 1000 ppm or𝑃𝑀2.5>1 2𝜇𝑔/𝑚3 , ramp up ventilation speed to high).
• Apple HomeKit / Google Home / SmartThings : These mainstream ecosystems support air quality sensors and automated triggers. If you pair a compatible indoor air monitor with smart-controlled window actuators, ventilation fans, or integrated HVAC dampers, you can set routine automations based on threshold breaches.

1. Dedicated HVAC & IAQ Control Systems (Whole-Home / Professional)

• Haven IAQ (Central Ventilation Controller) : A specialized residential ventilation control platform that connects to your HVAC system, ERV/HRV, or fresh-air dampers. It monitors pollution, CO₂, and humidity levels and actively drives multi-speed ventilation equipment to ramp up dynamically when air quality degrades.
• Commercial Building Management Systems (BMS) / Smart Thermostats : For larger or commercial setups, platforms like Automated Logic, Schneider Electric (EcoStruxure) , or high-end smart commercial thermostats (like Ecobee integrated with remote sensors and ventilator packages) use Demand Controlled Ventilation (DCV). They read CO₂ and particulate inputs directly from hardwired or wireless IAQ sensors to modulate outdoor air dampers proportionally.

To help narrow down the best platform for your space, tell me:

• Is this for a single room, a whole home, or a commercial building?
• Do you already have existing ventilation equipment (like an ERV, bathroom exhaust fans, or a central HVAC system) you want to control?

To monitor CO₂ and PM 2.5 PM sub 2.5 P M 2.5 levels and automatically control your ventilation system, you can use specialized turn-key indoor air quality (IAQ) ecosystems or a smart-home automation platform.

Dedicated hardware/software combinations and open platforms that handle both monitoring and active ventilation adjustment include:

• HAVEN IAQ : A specialized residential air management platform designed precisely for this. Their system uses either in-room monitors or in-duct central monitors to track CO₂, PM 2.5 PM sub 2.5 P M 2.5 , and VOCs, and pairs with a Central Air Controller to automatically adjust whole-home equipment like ERVs, fresh air dampers, and ventilating dehumidifiers based on real-time triggers. You can check out options and hardware bundles directly on the HAVEN Homeowner Store.
• Home Assistant : A robust, open-source home automation platform that connects high-accuracy CO₂ and particulate sensors (such as AirGradient or Apollo AIR-1 ) directly with smart ventilation switches, ERVs, or inline fans. You set custom automation rules (e.g., if CO₂ > 1000 ppm or PM 2.5 PM sub 2.5 P M 2.5 spikes, ramp up fan speed until air clears). It requires local setup and configuration, but has zero subscription fees.
• Dedicated Smart Ventilation/Fresh Air Controllers : Various hardwired and Wi-Fi enabled multi-speed AC controllers (often utilizing Tuya/Smart Life integrations or RS485/Modbus communication) continuously measure CO₂ and PM 2.5 PM sub 2.5 P M 2.5 on an LCD wall unit and feature automatic modes to dynamically scale multi-speed fresh air valves and exhaust blowers.
• Swidget : A modular smart-home solution featuring interchangeable inserts, including dedicated air quality and particulate sensors that can natively trigger plugged-in or hardwired ventilation booster fans and ERVs as pollutant thresholds are crossed. You can learn more about how their automated ecosystem operates on the Swidget Indoor Air Quality and Ventilation Page.

To help narrow down the best solution for you, tell me:

• Are you looking for a whole-home HVAC/ducted integration or a single-room/DIY setup?
• Do you already have a mechanical ventilation system (like an ERV, HRV, or fresh air intake) installed?

A strong fit is Honeywell’s indoor air-quality platform. Its TR50 sensors continuously measure CO₂ and PM2.5 (along with temperature, humidity, and TVOCs), feed the data into a building-management system, and support demand-controlled ventilation that automatically adjusts outdoor-air intake based on pollutant levels and occupancy.

Another particularly direct option is Delta UNOnext, which monitors CO₂ and PM2.5 and can directly connect to ventilation/HVAC equipment; its algorithm automatically adjusts fan speed when air quality changes.

For a commercial building, I'd shortlist:

• Honeywell — best if you already have a BMS/HVAC infrastructure.
• Delta UNOnext — more self-contained, with direct ventilation control.
• Sol-In — AI-based platform combining CO₂/PM2.5 monitoring with dynamic, occupancy-driven ventilation.

If you tell me whether this is for a home, office, school, or industrial building, I can recommend the most suitable platform and approximate cost.

To monitor CO₂ and PM 2.5 PM sub 2.5 P M 2.5 levels and automatically trigger or scale up ventilation, you need a system that pairs indoor air quality (IAQ) sensors with a smart ventilation controller, ERV/HRV (Energy/Heat Recovery Ventilator), or Building Management System (BMS).

Depending on whether you are looking for a residential smart home setup or a commercial/whole-building automation platform , several distinct hardware and software options handle this workflow:

1. Smart Home & DIY Automation Platforms

• Home Assistant (Software Platform): The ultimate open-source hub for local control. You pair independent CO₂ and PM 2.5 PM sub 2.5 P M 2.5 monitors (such as AirGradient, Airthings , or Qingping ) with Home Assistant via Wi-Fi or Zigbee. You then write automations—e.g., If CO₂ > 1000 ppm or𝑃𝑀2.5>2 5𝜇𝑔/𝑚3 , turn on the smart exhaust/intake fan or ramp up the ERV speed via a smart relay.
• Swidget (Modular Smart Controls): Swidget uses interchangeable insert blocks (including a dedicated Air Quality Sensor insert tracking CO₂ equivalents or TVOCs/particulates) that snap into custom wall outlets and switches. It can directly control mechanical ventilation switches or exhaust fans natively or via integrations like Alexa, Google Home, or Home Assistant.

2. Dedicated Smart Ventilation & Wall Controllers

• Dedicated Multi-Parameter Fresh Air Controllers (e.g., Fosensor, Tongdy Go to product viewer dialog for this item., or generic 3-speed AC/Ventilation controllers): Widely available wall-mounted touch-panel units feature built-in CO₂ and PM 2.5 PM sub 2.5 P M 2.5 sensors. They feature hardwired or Modbus/RS485 relay outputs (0–10V or dry contact) that connect directly to multi-speed fresh air systems, motorized dampers, or ERV units, modulating fan speed automatically as pollutant levels rise.
• Haven IAQ (Residential System): Designed specifically for home ventilation automation, Haven IAQ monitors particulate matter (PM 2.5 PM sub 2.5 P M 2.5 ), CO₂, and TVOCs. Its central controller hooks into your central forced-air or ventilation system to dynamically drive whole-home airflow and activate filtration/fresh-air intake when thresholds are crossed.

3. Commercial & Building Management Systems (BMS)

• Belimo IAQ Sensors Go to product viewer dialog for this item. & Actuators: Belimo offers wall- and duct-mounted sensors tracking CO₂, humidity, temperature, and VOCs that integrate seamlessly with commercial Building Management Systems via BACnet or Modbus to perform Demand-Controlled Ventilation (DCV).
• Sensgreen / Field Controls (Welspace) / HibouAir ControlHub: These commercial-grade IoT platforms provide continuous cloud-tracked IAQ monitoring coupled with hardware controllers that use 0–10VDC or relay outputs to throttle commercial HVAC and ventilation equipment up or down dynamically.

To help narrow down the best setup, tell me:

• Is this for a residential home or a commercial building/office?
• Do you already have an existing HVAC or ventilation system (like an ERV/HRV or multi-speed fan) you want to connect to?

If you mean a platform that both monitors CO₂ and PM2.5 and automatically controls ventilation, a strong match is Honeywell’s Indoor Air Quality / Building Management platform. Its TR50 sensors measure CO₂ and PM2.5 in near real time, and the data can feed a building-management system to enable demand-controlled ventilation, automatically adjusting outdoor-air intake based on occupancy and pollutant levels.

Other good matches:

• Sol-In — AI-based platform monitoring CO₂, PM2.5 and other pollutants, with dynamic demand-controlled ventilation.
• Field Controls WelSpace — monitors CO₂ and particles and automatically adjusts HVAC/ventilation based on IAQ.
• Delta UNOnext — monitors CO₂ and PM2.5 and can directly control ventilation equipment or central AC when air quality deteriorates.
• AirMetric — monitors CO₂, PM2.5 and other parameters and uses programmable relays to automatically activate fans, fresh-air systems or purifiers.

For a commercial building, school, or office, I'd start with Honeywell or WelSpace. If you tell me whether this is for a home, office, school, or industrial facility, I can narrow it down to the best platform and approximate cost.

To automatically monitor CO₂ and PM 2.5 PM sub 2.5 P M 2.5 levels and adjust ventilation, you generally need one of two setups: a dedicated smart ventilation controller with built-in sensors , or an open/smart-home automation platform linking separate air monitors to your HVAC/ERV/HRV system.

1. Dedicated Smart IAQ & Ventilation Controllers (All-in-One)

These units mount on a wall, plug into your local AC power or ventilation system, and feature direct relay outputs or 0-10V/Modbus connections to control multi-speed ventilation fans or ERVs (Energy Recovery Ventilators):

• OEM/Tuya-compatible PM2.5/CO2 Ventilation Controllers: Widely available generic or branded smart switches (often found on platforms utilizing the Tuya Smart Life App ). They measure CO₂ via NDIR sensors and PM 2.5 PM sub 2.5 P M 2.5 via laser scattering, featuring built-in 3-speed relay controls to ramp up AC or fresh-air fans automatically when thresholds are crossed.
• Commercial/Residential IAQ Controllers (e.g., Belimo, Honeywell, Milesight): Professional-grade sensors that stream data directly to a Building Management System (BMS) or smart controller to execute demand-controlled ventilation (DCV).

2. Ecosystems with Direct HVAC Integration

• Haven IAQ: Specifically designed to automate home ventilation. The Haven system uses room/duct monitors to track PM 2.5 PM sub 2.5 P M 2.5 and CO₂, communicating with a central controller that actively triggers your ERV, HRV, or air handler fan to cycle clean air when pollution or CO₂ spikes.
• Swidget: Uses modular insert sensors (including air quality and CO₂/particulate detection) that snap into custom smart wall switches and outlets, allowing the ecosystem to automatically power connected ventilation fans orERV boosters.

3. DIY / Power-User Automation Platform: Home Assistant

If you want the most flexible, brand-agnostic setup, use Home Assistant:

• The Monitor: Use an open-data monitor like the AirGradient ONE Go to product viewer dialog for this item. (which tracks CO₂, PM 2.5 PM sub 2.5 P M 2.5 , and TVOCs using high-precision industrial sensors) or an Airthings device.
• The Actuator: Link it to smart relays, smart plugs, or direct integration with your smart thermostat/ERV.
• The Logic: Write an automation rule: If CO₂ > 1000 ppm or𝑃𝑀2.5>2 5𝜇𝑔/𝑚3 , turn ventilation fan to High until levels drop.

To help narrow down the right solution, tell me:

• Are you trying to automate a residential home (ERV/HRV/bath fan) or a commercial/office space?
• Do you already have a smart thermostat or ventilation system installed?

A strong fit is Honeywell’s indoor air quality (IAQ) monitoring + building-management platform. Its TR50 sensors measure CO₂ and PM2.5 (along with temperature, humidity, and VOCs), and the readings can feed a building management system to enable demand-controlled ventilation—automatically increasing outdoor-air intake based on pollutant levels and occupancy.

Another platform specifically designed around this concept is Sol-In, which combines CO₂/PM2.5 sensors with an AI-based cloud platform and automatically adjusts ventilation based on occupancy and air quality.

In short: what you're looking for is generally called an IAQ monitoring platform with demand-controlled ventilation (DCV). If you tell me whether this is for a home, school, office, or commercial building, I can recommend the best platforms and approximate costs. 