24/7 Emergency Asbestos Response — Storm Damage, Fire, Renovation Exposure Call (561) 261-2250
Boca Asbestos Testing

Testing Methods

Asbestos Air Quality Testing: PCM, TEM, and Clearance Explained

Air testing is how we prove a space is safe to occupy after damage or abatement. Here is how it works.

Call (561) 261-2250Request a quote
5 min readUpdated June 20, 2025

Key takeaways

  • PCM is fast and inexpensive; TEM is more specific and used for clearance.
  • OSHA sets an 8-hour PEL of 0.1 fibers per cubic centimeter.
  • Air testing is different from bulk sampling — it measures what is actually in the breathing zone.

PCM vs. TEM

PCM (Phase Contrast Microscopy) counts total fibers and is used for occupational monitoring. TEM (Transmission Electron Microscopy) can distinguish asbestos from other fibers and is the method required for post-abatement clearance in most jurisdictions.

When to schedule air testing

After abatement work — before re-occupying the space.

After a suspected exposure event, such as a burst pipe soaking old joint compound.

As part of routine tenant safety monitoring in older commercial buildings.

Related services in Boca Raton

Ready to take the next step? Our licensed inspectors handle every stage.

Keep reading

Reviews

4.9★ average from 287+ Boca Raton neighbors

Real reviews from homeowners, property managers, and contractors across Palm Beach and Broward counties.

"Called at 8am about our popcorn ceiling before a sale. Inspector was here by 11 and I had the lab report the next morning. Professional and clear about what to do next."
Marcia D.Boca Raton, FL
"We manage 14 rental properties across Palm Beach. These are the only inspectors we use anymore — reports are always defensible and the pricing is transparent."
Andres R.Delray Beach, FL
"Honest people. They told us we probably didn't need to remove our floor tile if we weren't disturbing it — that saved us $8k. We used them for the clearance later."
Karen L.Boynton Beach, FL
"Needed a NESHAP demo survey on a tight permit timeline. They had the sealed report to my desk in 48 hours. Real pros."
Jason W.Deerfield Beach, FL

Get Answers Today

Ready to test? We can be on-site today.

Speak with a licensed inspector in under 60 seconds. No pressure, no obligation — just clear answers.

Call (561) 261-2250Request a free quote