top of page
At the Dentist

Training the Fit Tester

We are a listed provider on the RCDSO website. 

Respirator Fit Testing Course

Our course is designed in accordance with CSA Z94.4 2018 Selection Use and Care of Respirators and is for the dental industry only. 

The course is delivered by a respiratory protection expert who is both a Canadian Registered Safety Professional (CRSP) and Registered Occupational Hygiene Technologist (ROHT). The expert delivering the course has conducted over 10,000 fit tests in Ontario hospitals, dental offices and in industrial settings. 

We are listed as an approved trainer on the RCDSO and ODA websites.


Course Duration and Delivery

Wherever you may be, in your home or office, Enviro will set up a Zoom meeting on a date and at a time convenient to you. To ensure your success you may ask questions or seek clarification at any time during the 2-hour online theory module. Following the theory module we will show you how to conduct qualitative fit testing for N95 and 1/2 face piece respirators.


Also, when you are ready to conduct actual fit testing at your facility we will set up a Zoom meeting, or visit your workplace and help you through the process to ensure your success.


Evaluation and Certification

The course includes a simple online examination in order to reinforce concepts and receive a certificate of competency. Enviro EH&S maintains the record of certification for 3 years from completion. 


Learning Objectives

By the end of this course, you will be able to conduct qualitative fit testing (QLFT) using a 3M Fit Testing Kit or similar and provide instruction and training as required by CSA Z94.4 2018. Attendees will learn

  • preliminary theory regarding N95 respirators, including use and limitations

  • necessary elements and protocols of a respiratory protection program; and

  • how to apply program requirements with regard to fit testing concerns; 

  • how to instruct/train an N95 respirator user regarding donning, performing user seal checks, and doffing;

  • how to conduct fit tests to verify the user’s ability to obtain an acceptable fit/seal

  • how to document a user’s competency and corresponding fit test results

  • how to manage the overall fit testing process: sensitivity screening and fit testing, interpret test results, documentation

  • how to properly clean and sanitize fit testing equipment used for fit testing


Do I need to Purchase any Materials?

No. After you register for the course we will deliver to you by email all course materials (education slides, example fit testing record and generic respiratory protection program). 

When you complete the course you may either call us to visit your workplace and conduct fit testing for you, or you may rent our fit testing kit and conduct your own fit testing. We do not provide N95 respirators but we can help you source them. 

What is the cost of the course?

$350 plus HST per person.


Payable 3-5 days after the course by Mastercard or Visa. Click here to inquire or tentatively register. You will not be charged to tentatively register.

How do I register for the course or book an in-person visit?

Click here or call 1-800-805-9204 x114. Or email our Canadian Registered Safety Professional (CRSP) for more information. 


May 21, 2020


"Thank you again for your time today. We were very happy with the service provided, you are very knowledgeable and explain everything very clearly. The course met our expectations and now we feel confident to do the testing in our office. Your personalized attention is the cherry on top of the cake. Thank you for letting us use your test kit and  making this course very enjoyable"

Dr. Sandra R.

bottom of page