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Balance air flow testin real-time uses the power of digital analysis and lab grade sensors to provide highest quality measures for low cost.

BreatheScore Certify.
Building air safety testing, meet new ASHRAE Standard 241 and increase returns.

Facility managers discuss air change rates and methods for ASHRAE 241

Real-time eACH and ECA results give you the insights needed to optimize your space and meet Standard 241.

What are eACH and ECA?


Building air safety testing app running clean air testing in real-time. eACH measures and ECA testing ASHRAE 241

One million square feet monitored and optimized. 

Know your building's clean air rate, measure against ASHRAE Standard 241. 

BreatheScore Certify's air tracer technology is the industry’s most innovative and advanced ventilation monitoring and air health certification system, and the only method with fully digital testing for ASHRAE Standard 241 providing fast, precise, zone-by-zone ventilation performance assessment and optimization.


Having worked with hundreds of commercial real estate buildings and their owners, we have learned that inefficient, costly testing leads to tenant and occupant concerns, directly impacting KPIs, sustainability, and revenue.

Poppy provides easy, one day testing and instant results to demonstrate what’s working and what’s not while uncovering ways to save without increasing risk.

Better results. Less cost.  More profit.

BreatheScore gives you instant results, in the palm of your hand, as well as comparison data in our dashboard, allowing you to optimize, retest, run scenarios, validate assumptions, identify challenges and opportunities, as well as quantify the impact of air purifiers, UVC, open windows, and HVAC seasonal settings.


BreatheScore quantifies the effects of all products that impact air health to gauge the ongoing health of your spaces. 

Why does building air safety matter?

Picture this:



In just 20 minutes, our cutting-edge technology not only provides you with equivalent clean air (ECA) and effective air changes per hour (eACH), but we're taking it a step further.


We're thrilled to introduce a groundbreaking addition inspired by ASHRAE Standard 241 – the ability to measure and determine the precise number of occupants a space is safely suited for. This is a game-changer that sets a new standard for safety and compliance.

If that is not enough, how about saving 15% on your energy bill? For a typical 200,000 sqft Class A building, that is 52,000 savings, annually. 

Open window image shows how BreatheScore take natural and mechanical ventilation into account when calculating clean air and equivalent air change rate
Image of an advanced ventilation system with text "New building standards are here. It's time to go.

advantage and optimization

Manage your building’s health, energy costs, and sustainability
like never before.

Poppy’s breakthrough particle tracer technology measures eACH in 15 minutes and is the industry’s fastest and most accurate measurement system.

Uncover areas of over-ventilation (common in 70% of commercial buildings) to quickly reduce energy costs and meet ESG goals.

Assess how you measure up against new occupant safety building standards

Accurately quantify the contribution of all ventilation and healthy air investments, including filters, purifiers, recirculated air, and more, in a single measurement.

Showcase what sets your building apart by communicating your Silver, Gold, or Platinum certification to internal and external stakeholders with tailored reports, scorecards, benchmarks, and social media assets.

BreatheScore Certify cost is less that $.02 per sqft.

and reduces energy costs by at least $.15 per sqft.*

*Energy savings comes from areas of over-ventilation or inefficiencies illuminated by BreatheScore Certify data, this level of savings is likely only found in Class A or B buildings

Certify your building today 
No Installation. No need for Infosec. No up front costs. 

Three tiers of certification (Silver, Gold, Platinum) with associated percentages of spaces covered.


100% of general gathering spaces (lobby, cafeteria, multipurpose room, hallways, classrooms, etc.)

20% of smaller group spaces (cubical areas, private offices, training room, conference rooms, restrooms, etc.)

2 year air health certification

100,000 sqft building 

$349 Month

Example: NA Customer, in USD. Actual Pricing Based on Building Layout


100% of general gathering spaces (lobby, cafeteria, multipurpose room, hallways, classrooms, etc.)

40% of smaller group spaces (cubical areas, private offices, training room, conference rooms, restrooms, etc.)

2 year air health certification 

100,000 sqft building


$499 Month

Example: NA Customer, in USD. Actual Pricing Based on Building Layout


100% of general gathering spaces (lobby, cafeteria, multipurpose room, hallways, classrooms, etc.)

60% of smaller group spaces (cubical areas, private offices, training room, conference rooms, restrooms, etc.)

2 year air health certification 

100,000 sqft building


$749 Month

Example: NA Customer, in USD. Actual Pricing Based on Building Layout

New ASHRAE building
standards are here.
It's time to go. 

For property owners, adhering to these new standards at scale and cost-effectively will be key to this transition. Poppy will support your efforts to make your team more productive, proactive, and ready to tackle what comes next.

Visualization of BreatheScore's continuous validation and insights process.


are now held to
a higher standard.

Graph Diagram showcasing the modern approach to ventilation testing compared to traditional methods.
A modern approach
to ventilation testing.


Measuring ventilation performance is due for a massive upgrade. For decades, most buildings are only tested when needing to meet occupancy building codes. The process has been manual, costly, and time-consuming, often resulting in incomplete evaluations.

Icon balanced indoor air flow digital 241
Test, measure, and optimize more often.


Tenants and occupants are more concerned about indoor air health than ever. Additionally, changing standards requires organizations to test more frequently. With a quick and accurate way to measure ventilation performance, businesses can take advantage of opportunities to reduce costs and increase building health.

Icon An illustration of a 3D scan capturing infectious aerosol dynamics.
Get an actionable, complete picture
of your healthy air strategy.


BreatheScore provides accurate, fast, actionable data for continuous validation and insights. It considers your HVAC system, air purifiers, and other disinfection methods to provide a comprehensive look into your healthy building strategy by collecting data across all these systems anytime performance adjustments are made.

Our comprehensive, proactive testing approach allows you to access and quantify your air health strategies to determine which work and which aren’t worth the energy or effort.

We're ready when you are. 
Let us know how we can help. 

Thank you for your message, we will get back to your shortly.


BreathScore Professional Scan:

the industry's most advanced infectious aerosol pathway technology — in 3D.



With unmatched spatial intelligence, BreatheScore Professional Scan uses a high-density sensor network to provide 3D tracking of how infectious particles build up, travel, and clear over time.

BreatheScore Professional Scan can be added to a certification test and combines Matterport scans and sensor data to capture unprecedented airflow and aerosol dynamics data at the room, between-room, and floor-to-floor level. Each scan renders a 3D digital twin which can be explored intuitively using Poppy’s BreatheScore Professional Scan browser based web application. 

Diagram building balance air flow easy fast 241

Heathy, integrated and
smart ecosystem.

Part of being the best choice for air safety monitoring is being a good collaborator in the healthy building and smart building ecosystems.


Whether it’s contributing to new standards, driving industry research, or integrating with building management systems, Poppy’s committed to working together to create healthier, more advanced buildings.

Ask about how we integrate with your building system.

BreatheScore Certify
Frequently asked questions

  • Help me understand what BreatheScore sensors can monitor, analyze, and detect?
    To make indoor commercial spaces infection-resilient and overall more healthy, Poppy’s inspects the air down to the particles and consolidates millions of data points to give you charts that measure how infectious particles will clear from the air, how long it will take, and where infection is likley to linger. BreatheScore Certify system provides real-time data during testing periods giving instant airborne-infection clearance data, showing changes, improvements and areas of concern. BreatheScore Monitor provides an installed version of our technology and certification that provides 24/7 continuous data and alerts, as well as capability to detect vaping and other specialized monitoring needs that can be added to you customized install system. BreatheScore Certify and BreatheScore Monitor tracks effective Air Changes per Hour Testing (eACH) for diffused particles instantly during testing, this data shows you how long it takes to clear viruses, bacteria, and molds from the air. It allows benchmarking against standards like ASHRAE 241 in your industry, and sharing real-time safety with occupants using digital signs. When used in calculations ECA or eACH can also provides data as to how much airborne risk is present in the room based on number of people occupying the room at that time, our BreatheScore app uses this type of calculation to determine risk level, and allows you to set capacity controls per room to determine the level of safety and need for aerosol pathogen mitigation is needed. During monitoring, reporting, and testing organizations can see the effects of ventilation changes as they happen, and monitor safety across many rooms, floors and buildings simultaneously. BreatheScore is also the most advance way to measure HVAC balancing and duct balancing, using a fully digital system to analyze, balance and see the airflow in a room. BreatheScore uses air tracing as outlined and recommended in ASHRAE indoor air quality standard to measure air change rate and clean air analysis in digital, real-time.
  • How does Poppy measure air safety in real-time and what does it actually measure?
    The Poppy system uses sensors and nebulizers to measure how viruses in human breath travel and are cleared from an indoor space like an office. We mimic respiratory particles with Poppy Nebulizers, and release them in a water-based tracer mist into the air. Poppy sensors accurately measure how quickly the 1 micron sized tracer droplets are removed from each space. These droplets contain bar coded particles, designed to mimic the behavior of virus-containing human breath in each indoor space. Sensors are located at the height of a typical adult's breathing zone to be as accurate as possible - giving you confidence and precision.
  • What is effective Air Changes per Hour (eACH) and how is it different than ACH?
    The effectiveness of a building’s ability to remove pathogens from the air is measured using effective Air Changes per Hour (eACH). This score is related to how quickly respiratory 1um aerosol particles (human breath) are removed through ventilation and dilution with clean air. An eACH score of 6 means effectively all the air in the room is replaced every 10 minutes (6/60 mins = 10 mins). The higher the eACH score, the safer staff and visitors are from respiratory viruses that can cause infections, such as COVID-19. The Center for Disease Control (CDC), recommends at least 5 eACH or higher for most types of spaces.
  • Why are Poppy sensors better than C02 (IAQ) monitors to measure ventilation safety, perform building air quality testing, drive actionable insights, and monitor potential health impacts?
    Carbon Dioxide (CO2) monitors can provide an indication if an area has poor ventilation compared to the number of people present. However CO2 is a gas which doesn't behave the same as biological particles in human breath. CO2 sensors don't take into account the value of air filtration. Spaces are often safer than CO2 monitors indicate. Poppy's system takes into account air purification, ventilation, and occupancy for a more direct measure of airborne viruses can make people sick.
  • I need a view of all of my building's places of ventilation. Can I get a 3D map of how air flows and where pathogens will likely pool or clear?
    Poppy Professional For high priority spaces, Poppy’s system provides high resolution, 3D tracking of how airborne pathogens travel, pool, and clear over time including: - Transmission pathways to validate the effectiveness of the investments in indoor pathogen safety such as air filtration, fresh air - dilution, masking, cleaning, etc. - Pathogen hotspots to uncover unexpected and important transmission paths that would otherwise be missed. - Overventilated zones to reveal areas where heating & cooling costs can be safely recouped.
  • How to measure indoor air quality to ASHRAE standards and compliance (also known as ASHRAE 241p Standard) in commercial spaces with precision and measurable outcomes?
    Measuring air quality should not be just around one metric, it is a holistic view of the space, its function and most importantly the air change rate in both air movement, as well as filtering and disinfecting. Using a tracer particle system (nebulizers with salt solution and highly precise sensors). Gives a much more complete view of air quality. Rapid certification tests take 20 minutes to perform and cover 5,000 sq ft - certify to test, adjust, retest and evaluate. BreatheScore Certify gives a complete view of how healthy people will be in the indoor space. We commonly refer to this as air health as apposed to air quality, as air quality is commonly tied to C02 measures. CO2 is Only Accurate to Monitor Infection Risk Under a Narrow Set of Conditions. CO2 is easily misinterpreted when used for infection risk monitoring because, fundamentally, respiratory gas measurements are not reflective of respiratory particle exposure and removal rates in buildings that use filtration to clean the air. In North America and Europe this is the dominant mode for CRE buildings. Therefore when CO2 levels are high in a space, and there is high density occupancy, the risk may actually be low with sufficient air change rates and appropriate filtration. On the other hand, when CO2 levels are low, at low occupancy, the risk may still be high if there is insufficient air motion. It only takes 2 people for virus transmission to occur.
Certify your building for 2 years of support and verification

Supporting happy customers 
across the US and Canada

We've got your back when it comes to making the indoor spaces we inhabit safe, functional, and productive.

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Promote a sense of Healthy confidence 

BreatheScore Certify badge platinum

Demonstrate your commitment to air safety and sustainability with communication templates, digital badges, and social media assets promoting your building's certification.

In addition to signage highlighting your Silver, Gold, or Platinum certification, occupants can view digital room-by-room safety statuses and learn more about your commitment to healthy air and sustainability with interactive guides.

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