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QuantiCheck User Guide
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QuantiCheck Quick Start Guide
Turn on QuantiCheck®
Press and hold power button until green light flashes then release.
![](https://ohdusa.com/wp-content/uploads/2020/09/Step-1.png)
Attach QuantiCheck® Device
Attach QuantiCheck® to the mask
![](https://ohdusa.com/wp-content/uploads/2020/09/Step-2.png)
Don Mask
Don your mask and tighten the appropriate straps.
![](https://ohdusa.com/wp-content/uploads/2020/09/Step-3.png)
Perform Fit Check
Squeeze or press and hold QuantiCheck® to perform check. Draw a breath until the blinking purple or yellow (dependent on Mode) light turns solid, at which point hold your breath static for up to 10 seconds and wait for result.
![](https://ohdusa.com/wp-content/uploads/2020/09/Step-4.png)
LED Indicator – Pass
A green light illuminates on the LED indicator for a passed test.
![](https://ohdusa.com/wp-content/uploads/2020/09/Step-5.png)
LED Indicator – Over Breathe
Rapid flashing purple light indicates over breath (too deep). Wait a few seconds for purple light to blink slowly. Try again but with a shallower breath.
![](https://ohdusa.com/wp-content/uploads/2020/09/Step-6.png)
LED Indicator – Fail
A red light blinking on the LED indicator for a failed check. Wait until the LED indicator flashes purple signalling a retest for the fit check.
![](https://ohdusa.com/wp-content/uploads/2020/09/Step-7.png)