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All posts tagged hepa.

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
Fire restoration technician inspecting smoke residue near HVAC grille with HEPA vacuum and odor control supplies staged nearby

Fire & Smoke

Why Fire Odor Comes Back After the Job Is "Done"

Smoke odor returns when residue reservoirs, pressure pathways, and HVAC deposits survive the first cleaning pass. Deodorization cannot replace source removal.

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
Soot-stained HVAC return with HEPA air scrubber staged in foreground under emergency work lights

Fire & Smoke

The Fire Is the Easy Part: Why Smoke Restoration Fails in HVAC, Not in the Burn Zone

IICRC S700 treats smoke as chemistry. Most crews treat it as cleaning. Sub-micron residue doesn’t care which one you picked.

Stampede DistributionApril 18, 202612 min read