What must be done if there are any significant facial changes before a fit test?

If there are any significant facial changes before a fit test, rescheduling the fit test is crucial. Significant changes can include weight gain or loss, dental work, or the use of certain medical devices that affect the fit of the respirator. Such alterations can compromise the seal between the respirator and the wearer's face, leading to ineffective protection against airborne contaminants.

Rescheduling allows for the fit test to be conducted when the individual's face is in a condition that accurately reflects their usual state, ensuring that the respirator provides an adequate seal and protecting the user from potential exposure to hazardous materials. This step is essential for maintaining safety and compliance with health standards, ensuring that workers have the appropriate level of protection required for their tasks.

Conducting an immediate fit check or adjusting the respirator straps may not adequately solve the issues arising from significant facial changes, as these actions do not guarantee a proper fit or seal. Providing a different type of respirator could be necessary in other situations, but it doesn't address the need for a fit test under conditions where facial changes could impact the effectiveness of the originally selected respirator. Rescheduling the fit test ensures comprehensive consideration of the wearer's current circumstances.