ATN PS15 Operator's Manual page 48

6.3. CLEANING THE ATN PS15
CAUTION
The ATN PS15 is a precision optical instrument and must be
handled carefully at all times to prevent damage.
Do not scratch the external lens surfaces or touch them with
your fingers.
Wiping demisting shield with lens paper while wet or with wet
lens paper can damage the coating.
Clean goggles with water, if necessary, and dry thoroughly. Clean
lenses with lens paper (and water, if necessary, except for demist-
ing shields).
6-10