450M BIBS Mask

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New 450M BIBS Mask is the perfect combination of performance, durability and comfort. The 450M BIBS Mask was specifically designed to meet the rigorous Norsok U-101 breathing standard and has been successfully performance tested by NUI and validated by DNV. Unlike other BIBS on the market today, 450M BIBS Mask is built to withstand the extreme conditions found in a saturation diving environment.The 450M BIBS Mask demand regulator is fully adjustable to allow for easy breathing from surface decom...

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  • Third party Tested and Certified by NUI to Norsok U-101:1999 and Verified by DNV
  • Easy Breathing (light inhalation and exhalation resistance, resulting in a low work of breathing)
  • Rugged Regulator Housing with Stainless Steel Valve Assemblies
  • Tool-less Removal of Demand and Exhaust Valve Assemblies for ease of maintenance and service
  • Pneumatically Balanced Demand Regulator with fine tune adjustment
  • Pneumatically Balanced Exhaust Regulator with overboard dump, permits minimum ventilation of the chamber
  • Vacuum Relief Valve Included
  • Gas Router and CO2 Purge Mechanism Attached to the Valves
  • Double Diaphragm Design with Removable Diaphragms and locking Diaphragm Covers for proper alignment and compression
  • Ultrafit, Hi-Comfort Silicone Oral Nasal, designed to fit most faces and designed to accommodate a microphone option
  • Full Head Harness for added comfort during long administration
  • Pressure and Collapse tested 10 ft. Hose Assembly with Quick Disconnects included
  • For use with Air, Oxygen, or Heliox
  • A unique microphone (Part #: 550-0010-01) can be linked to an Amcom ™ series communicator, allowing the person inside the chamber to clearly communicate with people outside the chamber
  • CE 607930
  • US Patent No. 8,336,547
  • Int. PCT. Pat. App. No. US2012/066144 pending350M BIBS Mask - P/N: 350M-01 Includes (1) 10 Foot Hose Assembly - P/N: 540-0004-01
  • (1) Oxygen Cleaned Quick Disconnect Socket - Brass - P/N: 59853-00
  • (1) Oxygen Cleaned Quick Disconnect Socket - P/N: 18969-00
  • (1) 350M BIBS Mask User's Manual - P/N: 350M-UM
  • (1) Certificate of Conformance

Delivery, Returns & Instore Collection

When will I receive my order?

International Delivery Times

Monday – Friday 3 – 5 Working Days

UK Mainland Delivery Times

Monday – Friday before 2pm Next Working Day
Monday – Friday after 2pm 2 Working Days
Saturday & Sunday 2 Working Days

UK Extended Areas Delivery Times

Monday – Sunday 3 – 5 Working Days

Please note delivery times may be extended during busy periods.

EU Areas

Please note that due to changes by HMRC, orders being shipped to EU countries will not be shipped on the same day as they are invoiced. EU Orders will now be shipped on the next working day. This only applies to E.U. orders. Domestic and Worldwide shipments remain the same.

Collect In Store?

When you go to the online checkout, you can opt to collect your items in store. We'll let you know when your order is ready for you to collect. Your order will normally be ready to collect the next working day.

Returns, refunds or exchanges?

You can return any item within 28 days of receipt for a refund, provided the item is unused, in its original packaging and in 'as new' condition.

Items will be refunded in full (less postage) if received within 28 days from the date of despatch.


We aim to deal with all returns and exchanges on the day they arrive, however please allow longer during peak periods.

You can return the item(s) by dropping them off in store or by returning the item(s) by post. We do not insist on a specific courier service for the return, so please use the most economical or appropriate method for returning the item(s).

Northern Diver (Int) Ltd
Appley Lane North
Appley Bridge

If an item becomes faulty after a period of time then please contact customer services (01257 254 444 or info@ndiver.com) prior to returning the item. We will either repair or replace the item at our discretion.

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Trade Customers

Northern Diver offers trade accounts to commercial organisations and to those who work in or around water. Please click here to register your details and find out if you qualify. Once your trade account has been confirmed you can view all trade prices and shop easily online when logged into your account. Please note when you are not logged in to your trade account retail prices are shown. If you have any queries please do not hesitate to contact us. Tel: +44 (0) 1257 25 44 44.