IRIS Field Sampling IRIS  SentinelAir™
PM2.5 · PM10 · TSI DustTrak DRX 8533 · Indoor & Outdoor IAQ

Dust or Particulate Concern?
We’ll Monitor It.

TSI DustTrak DRX 8533 EPA NAAQS Real-Time Monitoring ASHRAE Reference
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What we bring to your site

Equipment & Monitoring Media

Everything our field professionals arrive with — and everything the results will document.

Equipment & Media
TSI DustTrak DRX 8533 Real-time aerosol monitor: simultaneous PM1, PM2.5, PM4, PM10 & total
Gravimetric Filter Cassettes Time-weighted filter sampling for regulatory-grade PM reporting
Data Logging Module Continuous 24-hr or multi-day logging with time-stamp records
Outdoor Reference Monitor Ambient PM control station for indoor/outdoor ratio comparison
Zeroing Kit & Calibration Pre- and post-deployment calibration per TSI factory standards
Chain-of-Custody / Field Log Date-stamped instrument logs and field notes per deployment
What We Detect & Document
PM2.5 concentration (µg/m³) EPA NAAQS annual 9 µg/m³ and 24-hr 35 µg/m³ comparison
PM10 concentration (µg/m³) EPA NAAQS 150 µg/m³ 24-hr standard for coarse particles
Real-time aerosol trend Peaks correlated to site activities
Indoor vs. outdoor ratio (I/O) Identifies internal generation vs. infiltration from outside
Particle size fractions PM1, PM2.5, PM4, PM10, and total — DRX simultaneous readout
Health and regulatory comparison Reported against EPA NAAQS, ASHRAE, and OSHA TLV
Is this you?

Common Situations That Trigger a Monitoring Call

If any of these describe your situation — you need monitoring data, not guesswork.

Adjacent construction or demolition

Occupants concerned about dust infiltrating the building — real-time PM data identifies whether particles are entering from outside.

HVAC system distributing fine dust

Allergy symptoms or visible particulate settling on surfaces — monitoring pinpoints whether the HVAC is the generation source.

School or hospital IAQ monitoring

Baseline or ongoing PM documentation for sensitive occupant populations — provides defensible data for administration and regulators.

Industrial facility boundary monitoring

Perimeter PM measurement for regulatory compliance — documents that facility emissions stay within permit limits at the fence line.

Demolition or abatement clearance

Post-work PM monitoring confirms return to pre-activity baseline — required before reoccupancy in many abatement project specifications.

Litigation or insurance

Dust damage claims require documented PM data with a defensible exposure timeline — chain-of-custody logs and time-stamped data records.

Any of these match your situation? Fill out a quick inquiry — we’ll respond with the right monitoring approach within one business day.

Your client is your client. We don't compete with the contractors and consultants who send us work — we run the samples, you own the relationship.

Tell Us Your Problem.
We Come to You.

Dust source or concern, site address, when it started. Response within one business day.

What to include in your inquiry:

  • Your name, company & role
  • Site address and property type
  • Dust source or concern description and when it started
  • Indoor, outdoor, or both — affected areas
  • Have you had any prior air quality testing?

What happens next:

1
We review your situation and confirm the monitoring scope
2
Confirm the right approach — real-time DRX, gravimetric filter, or combined indoor/outdoor
3
Send you a quote & schedule a site visit
4
Field professional deploys equipment with full calibration and COC documentation
5
You get time-stamped PM data with EPA NAAQS comparison and a clear explanation of findings
TSI DustTrak DRX 8533 EPA NAAQS Reference Real-Time Monitoring ASHRAE IAQ Reference OSHA TLV Comparison