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#iicrc s520

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Negative-air machine and manometer staged outside sealed poly containment on a commercial remediation job

Mold Remediation

The Negative-Air Math Most Jobs Get Wrong

A containment does not care how many machines are on site. It cares about cubic footage, true CFM under load, and whether pressure holds when the work starts.

Stampede DistributionApril 24, 20266 min read
Sealed poly containment with negative-air machine venting through HEPA exhaust duct inside a mold remediation work zone

Mold Remediation

The Clearance Test That Fails at 3 PM: Three Failure Modes That Kill Mold Remediation Jobs

IICRC S520 Condition 1 is not subjective. Neither are the three ways crews keep missing it.

Stampede DistributionApril 18, 202613 min read