ReadiMask® MR Safe Determination
MED Institute has determined that the ReadiMask® Strapless Respirator, with and without the Integrated Eye Shield, meets the definition of MR Safe under ASTM F2503-26 and can be labeled MR Safe.
This page hosts the independent MR safety documentation for the ReadiMask®. The full technical memorandum is provided first, followed by a one-page determination suitable for sharing with an MRI department, MR Safety Officer (MRSO), or radiology team.
Full technical memorandum
The complete MED Institute memorandum, detailing the materials of construction, supporting supplier documentation, and the scientific basis for the MR Safe determination under ASTM F2503-26.
View the full MED Institute memorandum (PDF) →
One-page MR Safe determination
A single-page summary of the determination — convenient to keep at the scanner desk or send ahead of an appointment.
View the one-page determination (PDF) →
What the determination covers
- Applies to the ReadiMask® Strapless Respirator, with and without the Integrated Eye Shield.
- Covers all available sizes and configurations manufactured using the evaluated materials of construction.
- Not limited by MRI system type or magnetic field strength — it applies to any MR environment.
- The ReadiMask contains no metallic structural components: no nose clip, no staples, no fasteners, no wires.
MED Institute is accredited to ISO/IEC 17025:2017 and certified to ISO 13485:2016. As always, each MRI facility screens and approves what enters the MR environment, so the final decision rests with the facility.