STEP 1
STEP 2
TEST FOR A MINIMUM OF 72 HOURS (3 FULL DAYS).
2. 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.
STEP 3
3. Remove and discard the foam-filter-plug. Fold back the envelope flap. Remove the adhesive's protective cover and press flaps together to seal. DO NOT REMOVE from the test area until the packet is sealed. Make certain the packet is sealed air-tight. Repair any tears with a small piece of plastic tape. Leaks will invalidate the test.
STEP 4