Indoor air quality is crucial to ensure the health of the occupants of a house or building. In order to be fixed on this point, NADCA tests can be carried out. At Benjel, we can carry out these tests to check the effectiveness of your cleaning operations and evaluate the cleanliness of your ducts. Our service is distinguished by its reliability and speed. Depending on your specific needs, our expertise can extend to include sampling as well as microbiological or chemical analyzes of surfaces, dust and air. Take stock through this article.

What is NADCA?

The National Air Duct Cleaners Association or NADCA is a non-profit organization that began in 1989. Its central mission is to promote effective elimination of sources of complications in heating, ventilation and air conditioning systems . Through its efforts, NADCA is committed to maintaining high standards of cleanliness, efficiency and safety in these areas critical to indoor air quality and the proper operation of facilities.

The importance of NADCA lies in its role as an advocate for quality and professionalism within the ventilation duct maintenance industry. The association plays a key role in setting rigorous quality standards. It also provides specific guidelines for service providers specializing in the cleaning, maintenance and repair of ventilation systems. These standards ensure that providers who achieve NADCA certification are able to provide high-quality services, while helping to maintain healthy and comfortable indoor environments for end users.

To obtain NADCA certification, companies must meet several rigorous criteria. The first of these criteria is having at least one ASCS (Air Systems Cleaning Specialist) certified air duct cleaning specialist on their team. This certification ensures that the company has qualified and competent professionals to perform work that meets the standards established by NADCA.

Another essential criterion is the possession of liability insurance. This requirement is crucial to ensure the protection of customers and service providers in the event of accidents or damage occurring during cleaning and maintenance operations.

Finally, NADCA asks companies to carry out cleaning and maintenance operations in accordance with the standards defined by the association. This ensures that work is carried out consistently and efficiently, following industry best practices to keep ventilation systems clean and functioning properly. Additionally, businesses must adhere to NADCA’s codes of ethics, demonstrating their commitment to high professional and ethical practices.

Our NADCA testing services

At Benjel, our commitment translates into a complete range of services aimed at ensuring the indoor air quality of your spaces. We are proud to provide you with advanced expertise in gravimetric testing in your ventilation ducts, ensuring a healthy and safe environment.

Equipped with state-of-the-art equipment specially designed for precise sampling and measurements, we are able to perform gravimetry tests with unrivaled precision. Our experts are ready to respond quickly, providing reliable and meaningful results from our AIHA (American Industrial Hygiene Association) certified laboratory. This certification demonstrates our commitment to the highest standards of quality and professionalism.

Sampling and analysis

At Benjel, we consider sampling and analysis to be crucial steps in guaranteeing the quality of the indoor air in your spaces. Our in-depth expertise in the field allows us to offer you a complete service for collecting and analyzing samples taken from your ventilation ducts.

Our qualified specialists are at your disposal to carry out these steps with precision and rigor. Thanks to our state-of-the-art equipment and know-how, we ensure reliable and meaningful results, helping to create a healthy and safe indoor environment for you and your loved ones.

Provision of material for the client to carry out the tests themselves

We understand that some customers prefer to be directly involved in the evaluation process. This is why at Benjel we offer the possibility of providing you with the necessary equipment so that you can carry out the tests yourself.

Our goal is to empower you to actively contribute to improving the air quality in your living space. Our team will guide you through the necessary steps and ensure you have all the information and guidelines needed to complete the tests successfully.

Analysis of samples provided by the client

When you have taken samples of your ventilation ducts, our role at Benjel is to ensure that the results obtained are interpreted accurately and meaningfully. Thanks to our expertise in sample analysis, we are able to evaluate the levels of contaminants and particles present in your ventilation system.

By working with us to analyze the samples you provide, you benefit from our in-depth experience and knowledge of quality standards. Our goal is to provide you with a comprehensive and objective assessment, allowing you to take informed action to maintain indoor air quality at optimal levels.


We understand the critical importance of air quality in every space in your home. This is why our services include a complete analysis of the quality of the air circulating in all rooms. Our detailed analyzes provide essential information on air composition, ensuring your peace of mind about the safety and comfort of your indoor environment. At Benjel, our collaborative approach and our commitment to customer satisfaction drive us to offer you a complete range of solutions to guarantee a healthy, clean and safe indoor environment.