Persium Indoor Air Quality Monitoring for LEED Buildings

LEED Rewards What Buildings Actually Do


LEED v5 is moving away from checklists and snapshots. It increasingly rewards how indoor environments perform once people are inside.

Indoor air quality is central to this shift. Under LEED v5 O+M, up to 10 points are tied to Indoor Air Quality Performance, not intent, but outcomes measured over time.

LEED Rewards What Buildings Actually Do


LEED v5 is moving away from checklists and snapshots. It increasingly rewards how indoor environments perform once people are inside.

Indoor air quality is central to this shift. Under LEED v5 O+M, up to 10 points are tied to Indoor Air Quality Performance, not intent, but outcomes measured over time.

LEED Rewards What Buildings Actually Do


LEED v5 is moving away from checklists and snapshots. It increasingly rewards how indoor environments perform once people are inside.

Indoor air quality is central to this shift. Under LEED v5 O+M, up to 10 points are tied to Indoor Air Quality Performance, not intent, but outcomes measured over time.


Persium Turns Indoor Air Into Evidence


Our indoor sensors measure the key pollutants and environmental conditions that matter for occupant health and operational performance. Data is automatically collected and visualised through Persium’s platform, creating a clear, time-stamped record of indoor air quality.

This allows building teams to move beyond one-off tests and instead understand:

How is the building performing over time?


LEED Indoor Air Quality Performance Credit


LEED v5 introduces the Indoor Air Quality Performance credit, which awards points based on how well a building demonstrates indoor air quality performance, not just design intent or one-off tests.

Persium’s continuous monitoring supports the highest-value pathway under this credit.


Persium Turns Indoor Air Into Evidence


Our indoor sensors measure the key pollutants and environmental conditions that matter for occupant health and operational performance. Data is automatically collected and visualised through Persium’s platform, creating a clear, time-stamped record of indoor air quality.

This allows building teams to move beyond one-off tests and instead understand:

How is the building performing over time?


LEED Indoor Air Quality Performance Credit


LEED v5 introduces the Indoor Air Quality Performance credit, which awards points based on how well a building demonstrates indoor air quality performance, not just design intent or one-off tests.

Persium’s continuous monitoring supports the highest-value pathway under this credit.


Persium Turns Indoor Air Into Evidence


Our indoor sensors measure the key pollutants and environmental conditions that matter for occupant health and operational performance. Data is automatically collected and visualised through Persium’s platform, creating a clear, time-stamped record of indoor air quality.

This allows building teams to move beyond one-off tests and instead understand:

How is the building performing over time?


LEED Indoor Air Quality Performance Credit


LEED v5 introduces the Indoor Air Quality Performance credit, which awards points based on how well a building demonstrates indoor air quality performance, not just design intent or one-off tests.

Persium’s continuous monitoring supports the highest-value pathway under this credit.


LEED v5 places the strongest emphasis on continuous indoor air quality monitoring, particularly for Operations & Maintenance (O+M) projects.


Under this pathway, buildings earn points by:


  • Installing permanent indoor air quality sensors

  • Continuously monitoring key IAQ parameters

  • Demonstrating sustained performance over time


Point potential (LEED v5 O+M):

  • Up to 10–12 points, depending on certification type and performance levels


Persium supports this option by continuously monitoring the primary IAQ parameters referenced by LEED:

  • PM2.5

  • CO₂

  • TVOCs


Temperature & Relative Humidity

Data is recorded at regular intervals, creating a time-stamped dataset suitable for LEED documentation and review.


This pathway offers the greatest point potential and reflects LEED’s preferred approach under v5.




LEED also allows projects to earn limited IAQ points through one-time or baseline testing, typically conducted before occupancy.


This approach focuses on meeting minimum concentration limits for selected pollutants, which may include:


  • PM2.5 and PM10

  • Carbon monoxide (CO)

  • Nitrogen dioxide (NO₂)

  • Ozone (O₃)

  • Specific VOCs such as formaldehyde


Point potential:

  • Up to ~2 points in LEED v4.1

  • Up to ~2–3 points in LEED v5, depending on scope and parameters tested

While valid, this pathway provides only a snapshot in time and does not demonstrate ongoing indoor air quality performance.

Reporting Data for LEED Certification


To support LEED IAQ credits, project teams must submit verifiable documentation as part of their certification review.


Persium supports LEED reporting by providing:


  • Time-stamped IAQ datasets covering the required monitoring period

  • Exportable data files (e.g. CSV or API access) for sustainability consultants

  • Clear dashboards showing trends, averages, and exceedances

  • Sensor specifications to support equipment and performance requirements


Persium does not submit data directly to LEED or award points.


Instead, we provide the monitoring infrastructure and documented evidence that project teams and LEED assessors rely on during certification review.


Built for Performance-Based LEED Projects


Persium helps buildings move beyond compliance checklists toward measured indoor air quality performance.

 

By delivering continuous, auditable IAQ data, Persium supports the LEED pathways that matter most, today and as standards continue to evolve.


LEED v5 places the strongest emphasis on continuous indoor air quality monitoring, particularly for Operations & Maintenance (O+M) projects.


Under this pathway, buildings earn points by:


  • Installing permanent indoor air quality sensors

  • Continuously monitoring key IAQ parameters

  • Demonstrating sustained performance over time


Point potential (LEED v5 O+M):

  • Up to 10–12 points, depending on certification type and performance levels


Persium supports this option by continuously monitoring the primary IAQ parameters referenced by LEED:

  • PM2.5

  • CO₂

  • TVOCs


Temperature & Relative Humidity

Data is recorded at regular intervals, creating a time-stamped dataset suitable for LEED documentation and review.


This pathway offers the greatest point potential and reflects LEED’s preferred approach under v5.




LEED v5 places the strongest emphasis on continuous indoor air quality monitoring, particularly for Operations & Maintenance (O+M) projects.


Under this pathway, buildings earn points by:


  • Installing permanent indoor air quality sensors

  • Continuously monitoring key IAQ parameters

  • Demonstrating sustained performance over time


Point potential (LEED v5 O+M):

  • Up to 10–12 points, depending on certification type and performance levels


Persium supports this option by continuously monitoring the primary IAQ parameters referenced by LEED:

  • PM2.5

  • CO₂

  • TVOCs


Temperature & Relative Humidity

Data is recorded at regular intervals, creating a time-stamped dataset suitable for LEED documentation and review.


This pathway offers the greatest point potential and reflects LEED’s preferred approach under v5.




LEED also allows projects to earn limited IAQ points through one-time or baseline testing, typically conducted before occupancy.


This approach focuses on meeting minimum concentration limits for selected pollutants, which may include:


  • PM2.5 and PM10

  • Carbon monoxide (CO)

  • Nitrogen dioxide (NO₂)

  • Ozone (O₃)

  • Specific VOCs such as formaldehyde


Point potential:

  • Up to ~2 points in LEED v4.1

  • Up to ~2–3 points in LEED v5, depending on scope and parameters tested

While valid, this pathway provides only a snapshot in time and does not demonstrate ongoing indoor air quality performance.


LEED also allows projects to earn limited IAQ points through one-time or baseline testing, typically conducted before occupancy.


This approach focuses on meeting minimum concentration limits for selected pollutants, which may include:


  • PM2.5 and PM10

  • Carbon monoxide (CO)

  • Nitrogen dioxide (NO₂)

  • Ozone (O₃)

  • Specific VOCs such as formaldehyde


Point potential:

  • Up to ~2 points in LEED v4.1

  • Up to ~2–3 points in LEED v5, depending on scope and parameters tested

While valid, this pathway provides only a snapshot in time and does not demonstrate ongoing indoor air quality performance.

Reporting Data for LEED Certification


To support LEED IAQ credits, project teams must submit verifiable documentation as part of their certification review.


Persium supports LEED reporting by providing:


  • Time-stamped IAQ datasets covering the required monitoring period

  • Exportable data files (e.g. CSV or API access) for sustainability consultants

  • Clear dashboards showing trends, averages, and exceedances

  • Sensor specifications to support equipment and performance requirements


Persium does not submit data directly to LEED or award points.


Instead, we provide the monitoring infrastructure and documented evidence that project teams and LEED assessors rely on during certification review.


Built for Performance-Based LEED Projects


Persium helps buildings move beyond compliance checklists toward measured indoor air quality performance.

 

By delivering continuous, auditable IAQ data, Persium supports the LEED pathways that matter most, today and as standards continue to evolve.

Reporting Data for LEED Certification


To support LEED IAQ credits, project teams must submit verifiable documentation as part of their certification review.


Persium supports LEED reporting by providing:


  • Time-stamped IAQ datasets covering the required monitoring period

  • Exportable data files (e.g. CSV or API access) for sustainability consultants

  • Clear dashboards showing trends, averages, and exceedances

  • Sensor specifications to support equipment and performance requirements


Persium does not submit data directly to LEED or award points.


Instead, we provide the monitoring infrastructure and documented evidence that project teams and LEED assessors rely on during certification review.


Built for Performance-Based LEED Projects


Persium helps buildings move beyond compliance checklists toward measured indoor air quality performance.

 

By delivering continuous, auditable IAQ data, Persium supports the LEED pathways that matter most, today and as standards continue to evolve.