Ventilation Duct Cleaning Training

Lesson 1 • HVAC System Overview and Components

Covers the role of HVAC systems in buildings and how ducts distribute conditioned air. Establishes the system context needed for all subsequent cleaning work.

Lesson 2 • Indoor Air Quality Fundamentals

Explains how contaminants accumulate in duct systems and affect occupant health. Links air quality science to the practical need for regular duct cleaning.

Lesson 3 • Types of Duct Contaminants

Identifies the full range of debris, biological, and chemical contaminants found in ducts. Prepares students to recognize what they will encounter during inspections and cleaning.

Lesson 1 • Chemical Safety and Waste Handling

Covers safe handling of cleaning agents, biocides, and collected debris. Ensures proper containment and disposal to protect workers and the environment.

Lesson 2 • Personal Protective Equipment Selection

Covers selection criteria and proper use of respirators, gloves, suits, and eye protection. Students match PPE to specific contaminant types and exposure levels.

Lesson 3 • Confined Space Entry Procedures

Addresses entry into large duct sections classified as confined spaces. Students apply permit requirements, atmospheric testing, and rescue planning.

Lesson 4 • Hazard Identification in Duct Work

Teaches recognition of physical, chemical, and biological hazards present in duct environments. Grounds all PPE and safety decisions in accurate hazard assessment.

Lesson 1 • Airflow and Pressure Measurement

Teaches use of manometers, anemometers, and pitot tubes to measure system performance. Airflow data reveals blockages and guides cleaning scope decisions.

Lesson 2 • Pre-Cleaning Assessment Reports

Guides students in compiling inspection findings into a structured assessment report. The report defines cleaning scope, method selection, and client communication.

Lesson 3 • Microbial and Particulate Sampling

Explains air and surface sampling methods for mold, bacteria, and particulate matter. Results inform cleaning decisions and verify post-cleaning effectiveness.

Lesson 4 • Visual Inspection Methods

Introduces direct and indirect visual inspection techniques for accessible and remote duct sections. Builds the observational foundation for all assessment decisions.

Lesson 1 • Access Panel Creation and Sealing

Covers cutting, sizing, and sealing access openings in duct walls for equipment entry. Proper sealing after cleaning maintains system integrity and pressure balance.

Lesson 2 • Air Whips and Pneumatic Agitation Tools

Introduces compressed-air agitation tools including air whips, skipper balls, and blow guns. Students control air pressure to dislodge debris without damaging duct surfaces.

Lesson 3 • Rotary Brush Systems

Teaches selection, assembly, and operation of rotary brush systems for mechanical agitation. Students match brush diameter and stiffness to duct material and contamination type.

Lesson 4 • Equipment Maintenance and Troubleshooting

Details routine maintenance schedules and common failure modes for cleaning equipment. Reliable equipment performance is essential for consistent cleaning quality.

Lesson 1 • Residential System Configuration

Reviews typical residential duct layouts including trunk-and-branch and radial systems. Understanding layout guides equipment placement and cleaning sequence decisions.

Lesson 2 • Supply and Return Duct Cleaning Sequence

Teaches the systematic cleaning order for supply and return duct branches in residential systems. A consistent sequence ensures complete coverage and prevents recontamination.

Lesson 3 • Job Site Setup and Protection

Covers protecting furnishings, flooring, and occupants before cleaning begins. Proper setup prevents property damage and maintains professional standards.

Lesson 4 • Post-Cleaning Verification and Closeout

Guides final inspection, filter replacement, and system restart after residential cleaning. Verification confirms cleaning quality before the technician leaves the site.

Lesson 1 • Kitchen Exhaust and Grease Duct Cleaning

Covers specialized procedures for commercial kitchen exhaust systems with heavy grease buildup. Grease duct cleaning reduces fire risk and meets fire safety standards.

Lesson 2 • Minimizing Business Disruption

Addresses scheduling, noise control, and containment strategies to protect building operations. Commercial clients require cleaning with minimal impact on occupants and business activities.

Lesson 3 • Large-Diameter Duct Cleaning Methods

Addresses cleaning of rectangular and round ducts exceeding standard residential dimensions. Larger ducts require different tool configurations and access strategies.

Lesson 4 • Commercial System Types and Layouts

Covers VAV, constant-volume, and rooftop unit systems common in commercial buildings. System type determines equipment selection, access strategy, and cleaning sequence.

Lesson 1 • Post-Treatment Verification

Covers sampling and visual methods to confirm treatment effectiveness after application. Verification protects clients and provides documentation of successful remediation.

Lesson 2 • Microbial Contamination Assessment

Reviews identification and severity classification of mold, bacteria, and biofilm in ducts. Accurate assessment determines whether chemical treatment is warranted and which products to use.

Lesson 3 • Encapsulant Application Techniques

Teaches application of encapsulants to seal friable insulation and residual contamination. Proper application prevents fiber release and contains surface contaminants long-term.

Lesson 4 • Duct Liner Repair and Replacement

Addresses assessment and remediation of damaged internal duct liner materials. Damaged liner harbors contamination and reduces system efficiency if not repaired.

Lesson 1 • Client Communication and Handover

Addresses professional delivery of findings, recommendations, and maintenance guidance to clients. Effective handover builds trust and supports long-term client relationships.

Lesson 2 • Post-Cleaning Inspection Procedures

Covers systematic post-cleaning inspection using cameras, sampling, and airflow measurement. Inspection confirms that all areas meet quality standards before project closeout.

Lesson 3 • Continuous Improvement Practices

Introduces feedback loops, job debriefs, and performance tracking to improve future work quality. Systematic improvement raises team standards and reduces repeat deficiencies.

Lesson 4 • Quality Control Standards and Metrics

Defines measurable cleanliness standards and inspection criteria for completed duct cleaning. Clear metrics allow objective evaluation of work quality and support client confidence.