2
①
Install fit tester type F (option),
composed of two pieces: a lid-shaped
piece and a pipe-shaped piece. Insert a
lid-shaped piece into an opening on one
side, and a pipe-shaped piece into an
opening on the other side.
②
Don the respirator, pinch the end of the
pipe-shaped piece with fingers, and inhale.
③
Good fit is obtained if the facepiece is
pressed against the wearer’s face.
④
Good fit is not obtained if the wearer feels the leakage of air between
facepiece and face. Re-inspect various parts of the respirator (mainly
exhalation valve), adjust headband, adjust the position of the
respirator, etc. and perform
①
〜
③
again.
⑤
If good fit is obtained, make sure to remove the fit tester from the
respirator before entering into the workplace.
Performing fit test
Perform fit test in safe place without hazardous substance.
Fitting instructions
Don or doff the respirator in safe place without hazardous substance.
1
2
3
Hook
<B
u
ckle>
D-Ring
4
5
Pl
as
tic
molded
cr
a
dle
h
a
rne
ss
q
Place the plastic
molded cradle har-
ness on the crown of
your head.
w
Hold the buckle (hook
and D-ring) and pull
them evenly so that the
respirator approaches
to your face.
e
Fasten the buckle on
the back of your neck.
r
Adjust the length of the head-
band according to the
<Adjustment of headband
length>. Place the facepiece
over the bridge of your nose so
that it stays completely over
face, and then, place it over chin.
t
Adjust the respi-
rator position on
face for stable
position by align-
ing it left and
right, up and
down.
y
Make sure to per-
form fit test after
donning is com-
pleted.
u
To doff the respira-
tor, remove the
buckle.
Replacement of headband
l
Do NOT wear the respirator on towel applied over face.
Particulates may leak into the facepiece.
l
Make sure that the left and right sides of the headband are even
in length.
There is a possibility that over-extended headband and/or longer side
of the headband than the other side may be caught up in a machine.
l
The wearer with allergic tendency and/or fragile skin may suffer
from rough skin surface, eczema, etc. by using the respirator.
And the similar symptom may occur due to sweat, particulates
and/or dirt attached on the surface of the facepiece. In such
case, stop using the respirator and consult with a doctor.
l
In case proper donning cannot be maintained, such as dislocation
of the respirator while working, move to a clean area without
hazardous substance and don the respirator properly again.
l
Do NOT apply vibration or excessive force onto the filtering material.
It may result in decrease in performance and/or damage to the
filtering material.
<Adjustment of headband length>
Adjust the length of the headband so that there is no slight opening between
respirator and face. Also make sure not to over-tighten the headband to avoid
oppression. Perform the adjustment of the headband length according to the
following procedure.
*Make sure that the headband is evenly tightened.
q
To tighten, pull the headband on both the hook side and the D-ring side.
w
To loosen, release the tension of the headband by lifting both tabs of the
hook and D-ring.
Replacement schedule
Replace the headband with a new one when:
◎
Remarkable dirt and/or sticky surface due to rubber deterioration is
observed on the headband;
◎
The headband is not fully elastic or it does not have enough strength to
hold the respirator;
◎
Crack, distortion, damage, missing parts, etc. are found on the buckles
and/or plastic molded cradle harness; and/or,
◎
The buckles cannot be securely fastened or cannot be disconnected easily.
Replacement procedure
q
Remove the headband straps from the strap slit located on the left/right
sides.
w
To install a new headband, insert the straps of the new headband through
the strap slits from the facepiece side.
Hook
To tighten
D-Ring
T
ab
To loo
s
en
T
ab
l
If the length of the headband is too short or too long, make
adjustment following <Adjustment of headband length>.
l
Make sure that the headband is well elastic and not over-
extended.
l
If the headband is over-tightened, feeling of good fit may be lost,
and the wearer may experience a feeling of discomfort after
working for a long time.
l
After adjustment, make sure to perform fit test.
WARNING
CAUTION
l
Make sure to perform fit test prior to each use.
If not donned properly, hazardous substance may leak through
the opening created between face and facepiece, and be inhaled.
l
If air leakage into the facepiece is perceived when performing
fit test, do NOT use the respirator.
Hazardous substance may leak and be inhaled.
l
Make sure that the respirator would not be dislocated when
removing the fit tester.
DANGER
• Replace the headband in safe place without hazardous substance.
• Make sure to use only the Koken genuine headband.
Caution: Be sure with strap direction. Do NOT twist the
headband.
Document No. NS OM D-486 (E-001). Translation of Japanese User Instruction on Model 1021R as of July, 2013. Contents described in this User Instruction
may differ from the requirements/specifications exercised outside Japan. In such case, make sure to follow local laws and regulation.
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a
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