Fit testing to a mask system (N95, half mask, full face) is necessary to ensure the worker has an adequate seal with the respirator to provide the required protection from a potentially dangerous atmosphere. Required by Occupational Health and Safety in all jurisdictions of Canada, Second Chance CPR utilizes the CSA Standard Z94.4 – 18, Selection, Use and Care of Respirators standard.

Second Chance CPR uses a qualitative fit test machine called a Portacount.  This equipment provides accurate and repeatable results and is specifically recognized by the CSA standard.

Our Portacount Fit Test system can provide fit testing for many different mask systems through the use of adapters, allowing for efficient testing of multiple mask types during a single test appointment.


The basic elements of a respiratory protection program are:

  • hazard identification and discusses engineering controls
  • exposure assessment
  • education of employees on airborne hazards in the workplace
  • selection of appropriate respirators;
  • respirator fit testing
  • provision of training in the proper use of respiratory protection;
  • procedures for cleaning, inspecting and storing respirators;
  • medical surveillance for workers using 
respiratory protection;
  • maintenance of training, fit testing and medical 
surveillance records;


Employers must choose respirators based on the selection criteria:

  • Respiratory protective equipment must be properly fitted to the wearer’s face.
  • Employers must comply with standard when fit testing respiratory protective equipment.
  • Employers must use the assigned protection factors (APFs) specified in that standard.
  • Employers must develop a written code of practice 
governing the selection, maintenance and use of respirator

    PLEASE NOTE: Participants attending Fit Testing  must not eat, smoke, brush their teeth, wear perfume/cologne, chew gum or eat candy for ½ hour before the fit test.  The equipment works by evaluating particles inside the mask, causing the participant to fail the test if any of the above are present during the test.

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