QUICK STARTING INSTRUCTIONS
Step 2. Test for a minimum of 72 hours (3 full days)..
Insert the included foam filter into the “squared” opening of the packet. Push the foam in ONLY enough to fill the opening. Match up the top of the foam with the edge of the packet opening. Make sure the foam fills the opening and is holding the packet open as shown here. Now hang the packet, from the hook provided, at your normal breathing level. < Previous Step / Next Step >