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United Kingdom • www.clasohlson.co.uk

English

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Diving Mask and Snorkel Set, 
Junior/Senior

Art.no  31-6557-1, 31-6557-2

Please read the entire instruction manual before using the product 
and then save it for future reference. We reserve the right for any 
errors in text or images and any necessary changes made to 
technical data. In the event of technical problems or other queries, 
please contact our Customer Services .

Safety

 

Attention

•  Children using the snorkel must be under the constant 

supervision of an adult.

•  Do not subject the glass of the mask to heavy impacts.  

Never jump or dive into water with the mask and snorkel 
on. The stress of a forceful impact might crack the glass 
or otherwise damage the mask and snorkel and injure 
the wearer. 

•  Never try to modify the mask or snorkel (e.g. lengthen 

the snorkel). Doing so could result in serious injury or death. 
The snorkelling set must only be used under the supervision 
of an experienced person.

•  Never swim/snorkel alone. Always have someone nearby. 
•  Never attempt to modify the product in any way.
•  Persons shorter than 1.5 m should use a snorkel designed 

for children. Persons taller than 1.5 m should use a snorkel 
designed for adults.

•  Always check the depth and conditions in the water in which 

you intend to snorkel or dive to be prepared for strong 
currents, obstacles or other hazards.

•  Be aware of how far out you swim so that you have enough 

strength to swim back.

•  Take no more than three deep breaths before diving.  

Taking more than three deep breaths could cause you to  
faint underwater and drown.

•  The inherent buoyancy of a human body reduces the deeper 

one dives. This might mean that you won’t float back to 
the surface but will need to swim up.

•  The orange marking at the top of the snorkel makes it easier 

for other water-goers (swimmers, boaters, etc.) to see you. 
The snorkel should be replaced if this marking is damaged or 
missing.

Product description

•  The mask and snorkel are classed as Category I personal 

protective equipment, and comply with PPE Regulation (EU) 
2016/425 and harmonised standards EN 1972:2015 and EN 
16805:2015. The Declaration of Conformity is available in 
electronic format at www.clasohlson.com. 

•  The mask is made to protect the eyes from direct and 

prolonged contact with water and is only intended for use in 
water in the manner described in this instruction manual.

•  The mask has a polycarbonate frame with a silicone skirt and 

a tempered glass lens.

•  The snorkel has a purge valve, wave guard and silicone 

mouthpiece.

Instructions for use

•  If you intend to dive deeper than three metres, you must take 

a suitable diving course. Contact your local diving club for 
advice.

•  When diving/snorkelling, water pressure can cause a pain in 

your ears. To compensate and ‘pop’ your ears – hold your 
nose and blow air into your nose until your ears click and 
the pain disappears. 

•  Always inspect the straps and buckles before use. Make sure 

that the mask does not leak. Do not use the mask or snorkel 
if they are defective or in any way faulty.

Fitting and adjusting 

Mask

•  Before snorkelling/diving: Test the mask in shallow water to 

make sure that it works.

•  Hold the mask against your face without using the strap and 

breathe in through your nose. If the mask stays on your face 
without you holding it, it means that it fits and is airtight.

•  Hold the mask in place and adjust the head strap. Make sure 

that there is nothing (e.g. hair) between the mask and your 
face. Adjust the strap until the mask fits comfortably.

•  To reduce the risk of the mask glass fogging up: Spit on 

the glass, rub the saliva around to coat the glass and 
then rinse it off once with water. If the glass fogs up, let 
a little water inside the mask and shake your head to clear 
the glass.

Snorkel

•  Before snorkelling/diving: Test the snorkel in shallow water to 

learn how it works and make sure that air passes through it 
with ease. When snorkelling, water can get into the snorkel, 
you should practise blowing the snorkel clean.

•  Fasten the snorkel to the headband of the mask using 

the clip. Your lips should go over the flange while your teeth 
bite on the lugs.

 

Note:

• 

Warning:

 Class A snorkels are suitable for people with large 

lung capacities. Adult use only. Use the snorkel only in water. 

• 

Warning:

 Class B snorkels, are suitable for people with small 

lung capacities. Child use only. Use the snorkel only in water.

•  The non-return purge valve is most useful for a person 

snorkelling on the surface. For persons who use the snorkel 
to breathe between dives, it can be safer and quicker to blow 
water out of the top of the snorkel.

Care and maintenance

•  Rinse the product in clean water after use. 
•  Do not use solvents, alcohol or oil-based solvents to clean 

the product.

•  Do not expose the product to direct sunlight for long periods.
•  Store the product in a cool, dry place and make sure that it is 

not squashed by other objects.

Responsible disposal

The product should be disposed of in accordance with local 
regulations. If you are unsure how to proceed, contact your local 
council.

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