USE
MSA
3.2. Testing for Tight Fit
In order to check that the fit is tight, a leak test must be carried out before each
use (Figures: 3S-R AirElite Mask as an example).
(1) Seal the mask connection piece with the palm of
your hand (hand ball test).
(2) Test the tightness by inhaling and exhaling.
Whilst doing so
when inhaling there must be negative pressure,
no inflowing air should be noticeable and
when exhaling there must be overpressure, no
breathable air should escape over the sealing
edge.
If necessary retighten the straps.
If the leak test fails the mask must not be used.
3.3. Removing the Mask
(1) Loosen the head harness, press the buckles
forwards using your thumbs.
(2) Grip the mask by the connection piece and pull
off backwards over your head.
10
3S-R AirElite / Advantage AirElite / Advantage 4000 AirElite Full Face Masks
