Each method below produces different data. We explain which is appropriate for your Markham, IL property situation before you commit.
Non-Viable
💨Spore Trap Air Sampling
The workhorse of mold air testing. Fast turnaround (24–48hr), genus-level ID, quantified indoor vs. outdoor comparison. Appropriate for most routine Markham residential and commercial testing scenarios.
Viable
🏭Viable Culture Air Sampling
When genus ID isn't enough, viable culture plates give species-level confirmation. Critical for Stachybotrys chartarum investigation and situations where CFU counts and exact species matter — typically health-concern investigations and some insurance scenarios in Markham, IL.
Surface
🎖Surface Swab & Tape Lift Sampling
Surface swab samples from visible growth areas are sent to an accredited lab for culture analysis or direct microscopy — confirming whether visible discoloration is mold and identifying the genus/species. Tape lifts provide a faster direct-microscopy option for surface assessment. Used when the presence of mold on a specific surface needs to be confirmed and identified before committing to a removal scope.
ERMI
🔋ERMI Floor Dust Sampling
Environmental Relative Moldiness Index (ERMI) sampling uses qPCR analysis on settled floor dust to identify and quantify 36 specific mold species — providing a historical picture of mold accumulation in a Markham, IL property rather than a snapshot of current airborne levels. Used for post-remediation verification, long-term occupant health investigation, and situations where previous mold activity may have settled into dust but isn't actively airborne.
HVAC
🏢HVAC Register & Return Air Testing
Testing directly at HVAC supply registers and return grilles identifies whether the air distribution system is distributing mold spores throughout the property. Elevated counts at registers compared to room-level samples confirm the AHU or ductwork as the amplification source — critical before any duct cleaning or coil remediation decision in your Markham building.
Clearance
📄Post-Remediation Clearance Testing
Post-remediation clearance testing for any Markham property — whether we did the remediation or another contractor did. Written clearance report from an independent accredited lab confirms the job is objectively complete.
