The air you
can't see
is the problem.
"This is the air inside an average American office right now."
Breathe traces particulate counts, volatile organic compounds, and CO₂ curves through the rooms where people spend ninety percent of their lives.
PM2.5
Fine particulate matter
VOCs
Volatile organic compounds
AHI
Air Health Index
Timeline Progression
A building's air quality story
From construction off-gassing on Day 1 to remediated clarity at Month 12 — every scroll advances the story.
Construction Off-Gassing
The invisible aftermath of renovation
Fresh paint, adhesives, new carpet, and sealants release a cocktail of VOCs at concentrations 5–10× higher than outdoor air. PM2.5 from drywall dust lingers for weeks. Formaldehyde from pressed-wood furniture peaks here.
PM2.5
68μg/m³
VOCs
1240ppb
AHI
18/100
Pollutant Trend
Day 1Occupancy Spike
People arrive and so does the problem
CO₂ climbs as occupancy increases. Cleaning chemicals add a second VOC layer. HVAC systems recirculate contaminants rather than diluting them. Sick days begin to cluster — facility managers notice but can't explain.
PM2.5
34μg/m³
VOCs
580ppb
AHI
38/100
Pollutant Trend
Month 3Assessment & Intervention
Breathe maps every invisible variable
A Breathe assessment deploys calibrated sensors across all zones, runs a 72-hour continuous log, and cross-references against ASHRAE 62.1 and EPA IAQ guidelines. The report identifies sources, quantifies exposure, and prescribes targeted interventions.
PM2.5
14μg/m³
VOCs
220ppb
AHI
61/100
Pollutant Trend
Month 6Remediated Clarity
What clean actually feels like
MERV-13 filtration, targeted ventilation upgrades, and VOC source elimination bring all readings to or below EPA recommended thresholds. The building earns a Breathe Certified Air Quality rating. Sick days drop 31%. Cognitive performance scores improve.
PM2.5
5.2μg/m³
VOCs
87ppb
AHI
89/100
Pollutant Trend
Month 12What We Measure
Every invisible variable,
made legible.
Breathe deploys calibrated sensor arrays covering all major indoor air quality parameters — not just the ones that are easy to sell.
Particulate Matter
PM2.5 & PM10
Fine particles from construction dust, cooking, printer toner, and outdoor infiltration. At 12 μg/m³ or above, cardiovascular and respiratory risk increases measurably.
Volatile Organic Compounds
VOCs
Benzene, formaldehyde, toluene — emitted by paints, adhesives, furniture, and cleaning products. The WHO classifies formaldehyde as a Group 1 carcinogen.
Carbon Dioxide
CO₂
Above 1,000 ppm, cognitive performance measurably declines. Most offices hit 1,400–1,800 ppm by mid-afternoon with standard HVAC.
Thermal Comfort
Humidity & Temperature
Below 30% RH, respiratory passages dry and viral transmission increases. Above 60%, mold spore counts climb within 48 hours.
Specialty Contaminants
Radon & Biologicals
Radon is the second leading cause of lung cancer in the US. Mold spores and bacteria require separate bioaerosol sampling — standard HVAC filters don't catch them.
Every assessment includes a 72-hour continuous monitoring period — not a single spot-check. Air quality fluctuates dramatically by time of day, occupancy pattern, and HVAC cycle. We capture the full picture.
Client Outcomes
When the data speaks,
the results follow.

Margaret Hollis
Facilities Director, Cascade Financial Group
Portland, OR
We had 23% above-baseline sick days for eight months. Three HVAC companies found nothing. Breathe's sensor array identified a formaldehyde source in the east-wing renovation within the first 24 hours. Four weeks after remediation, sick days normalized.
Air Health Index
Before AHI
After AHI
David Osei-Mensah
Homeowner, Residential Client
Austin, TX
Our daughter's asthma worsened after we renovated the basement. Pediatrician found nothing clinically. Breathe measured VOC levels 4× the EPA recommended maximum from the new epoxy floor coating. The fix cost $600. Her symptoms resolved within two weeks.
Air Health Index
Before AHI
After AHI

Priya Venkataraman
VP of Development, Meridian Properties
Chicago, IL
Pre-occupancy certification used to be a 6-week process with three separate consultants. Breathe handled the full IAQ certification for our 340,000 sq ft mixed-use development in 11 days. Tenants signed faster knowing the data was there.
Air Health Index
Before AHI
After AHI
340+
Buildings assessed
31%
Avg. sick day reduction
72hr
Monitoring period
98%
Client satisfaction
Assessment Packages
Inaction is more expensive
than the assessment.
Every package includes calibrated sensor deployment, a full written report, and a remediation roadmap. No guesswork, no vague recommendations.
Tier 01
Essential
Single-room focus assessment for targeted concerns.
- ✓Up to 1,500 sq ft coverage
- ✓24-hour monitoring period
- ✓PM2.5, VOC & CO₂ analysis
- ✓Written report within 48hrs
- ✓One remediation recommendation
- ✗Multi-zone sensor array
- ✗Certification letter
- ✗Follow-up assessment
Tier 02
Comprehensive
Full-building 72-hour assessment with remediation roadmap.
- ✓Up to 10,000 sq ft coverage
- ✓72-hour continuous monitoring
- ✓Full pollutant panel (8 parameters)
- ✓Multi-zone sensor deployment
- ✓Detailed remediation roadmap
- ✓Priority report in 24hrs
- ✓One follow-up call included
- ✗Certification letter
- ✗Re-assessment included
Tier 03
Certified
Pre-occupancy certification with Breathe Certified rating.
- ✓Unlimited sq ft coverage
- ✓72-hour + re-assessment included
- ✓Full pollutant panel + radon + biologicals
- ✓ASHRAE 62.1 compliance report
- ✓Official Breathe Certified letter
- ✓EPA & LEED documentation ready
- ✓Dedicated project manager
- ✓30-day post-remediation check
Book Your Air Assessment
Three steps. Immediate price confirmation.
Not ready to commit?
$29 DIY Air Testing Guide
A 48-page field guide covering consumer sensor selection, placement methodology, and interpretation of readings. Written by our lead environmental scientist. Includes a PM2.5 and VOC baseline reference chart for 12 building types.