The Canadian National Air Duct Cleaning Association (CNADCA)

The Canadian National Air Duct Cleaning Association (CNADCA) is a federally incorporated, non-profit organization established to protect Canadians by advancing safe, ethical, and scientifically grounded practices in air duct cleaning and indoor air quality (IAQ) services.

CNADCA exists to address long-standing gaps in consistency, oversight, and consumer protection within the HVAC and air duct cleaning industry. By developing national standards, delivering accredited training, and administering independent certification programs, CNADCA raises the level of professionalism across the industry while safeguarding public health.

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Why CNADCA?

Air duct cleaning directly impacts indoor air quality, occupant health, and HVAC system performance—yet for decades, the industry has operated with limited national oversight. CNADCA was formed to provide:

• A uniform national technical standard

• Independent certification for companies and technicians

• Clear consumer protections and ethical enforcement

• Verifiable cleaning and documentation requirements

• Ongoing compliance and accountability mechanisms

CNADCA operates as a neutral, non-commercial body, independent from any single service provider or manufacturer, ensuring decisions are made in the public interest.

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Our Mission

To protect Canadians by establishing rigorous national standards, training, and certification for air duct cleaning and indoor air quality services—ensuring work is performed safely, ethically, and in accordance with sound scientific principles

Our Vision

To be Canada’s trusted authority in air duct cleaning and IAQ excellence, enhancing public health outcomes while elevating the professionalism, accountability, and credibility of the industry nationwide

National Standards & Technical Authority

CNADCA is the author and steward of CNADCA Standard IAQ 100-2025, Canada’s national standard for the assessment, cleaning, and verification of HVAC and air duct systems. The Standard establishes minimum technical requirements for residential, commercial, institutional, industrial, and specialized facilities across Canada
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CNADCA Standard IAQ 100-2025 is designed to:

Protect the health and safety of building occupants

Promote effective, verifiable HVAC cleaning practices

Form the technical foundation for certification, auditing, and enforcement programs

Provide a consistent reference for building owners, engineers, insurers, and regulators

Support energy efficiency and system performance

Certification, Training & Accountability

CNADCA administers a tiered certification system for:

Certified Air Duct Cleaning Companies

Certified Technicians

Certified Indoor Air Quality Specialists

Certification is supported by structured training, examinations, continuing education, and annual compliance requirements. All certified members must adhere to CNADCA’s Code of Ethics, submit to audits, and participate in complaint resolution processes when required

Governance & Independence

CNADCA is governed by a Board of Directors and supported by independent advisory committees specializing in technical standards, training, compliance, ethics, and consumer protection. This structure ensures transparency, accountability, and balanced representation of public, technical, and industry interests

A Commitment to Canadians

At its core, CNADCA is committed to health, safety and ethics, to protect Canadian consumers and give them confidence in the best service possible.

By setting clear expectations and measurable standards, CNADCA empowers consumers to make informed decisions and provides professionals with a recognized framework for excellence.

Integrity in business practices

Safety backed by science and regulation

Compentency through education and certification

Accountability through oversight and enforcement

Innovation aligned with evolving Indoor Air Quality technologies

CNADCA Standard IAQ 100-2025

Canada's National HVAC assessment, cleaning and verification standard.

• Assessment

• Cleaning Procedures

• Verification

• IAQ Protocols

• Documentation Requirements

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