Honeywell Safety Sperian® /Survivair™ ValuAir® Respirator (Bayonet) to 40MM NATO (RD40x1/7) Adapter

This prototype design for a legacy Honeywell Safety Sperian® /Survivair™ ValuAir® bayonet non-disposable respirator to 40MM NATO (RD40x1/7”) gas mask thread adapter. Designed to help cross compatibility of commercial off the shelf (COTS) filters with other manufacturer’s respirators during this global PPE shortage. In this particular case, Honeywell Safety Sperian® /Survivair™ ValuAir® bayonet series respirators can now be compatible with any RD40x1/7” threaded canisters or step down adapters to other respirator manufacturer filter cartridges.

If you cannot source 40MM NATO (RD40x1/7”) thread filters, then you can step down to the following adapters below:

40 MM NATO to 3M™ Bayonet Adapter
https://www.thingiverse.com/thing:4245358

40 MM NATO to MSA® Bayonet Adapter
https://www.thingiverse.com/thing:4265715

40MM NATO to MSA® Comfo Classic Adapter
https://www.thingiverse.com/thing:4267676

40MM NATO to Honeywell/Honeywell North® Adapter
https://www.thingiverse.com/thing:4268775

40MM NATO to Honeywell Sperian® Filter Adapter
https://www.thingiverse.com/thing:4297348

40MM NATO to AOSafety® Threaded Adapter
https://www.thingiverse.com/thing:4273365

40 MM NATO to AOSafety® R5700 8051 Bayonet Adapter
https://www.thingiverse.com/thing:4265538

40MM NATO to Portwest® Bayonet Adapter
https://www.thingiverse.com/thing:4273464

40MM NATO to Moldex® 7000/9000 Series EasyLock® Bayonet Adapter
https://www.thingiverse.com/thing:4275446

40MM NATO to Secura BC Bayonet Adapter
https://www.thingiverse.com/thing:4294187

40MM NATO to JSP® Force™8 Filter Adapter
https://www.thingiverse.com/thing:4294203

40MM NATO to Delta Plus M3000 Mars Series Filter Adapter
https://www.thingiverse.com/thing:4311197

40MM NATO to Delta Plus M6000 Jupiter Series Filter Adapter
https://www.thingiverse.com/thing:4311200

40MM NATO TO GOST 8762-75 Adapter
https://www.thingiverse.com/thing:4321450

40MM NATO to Draeger X-plore® Filter (3000/5000 Series) Adapter
https://www.thingiverse.com/thing:4329276

40MM NATO to ENHA Rockman 7300 Series Filter Adapter
https://www.thingiverse.com/thing:4329610

40MM NATO to Sundstrom SR Series Filter Adapter
https://www.thingiverse.com/thing:4338105

40MM NATO to Milla EURMASK® ETNA (Bayonet) Series Filter Adapter
https://www.thingiverse.com/thing:4342320

40MM NATO to Milla EURMASK® (Uno/New) Series Threaded Filter Adapter
https://www.thingiverse.com/thing:4342343

And if no filter cartridges are still available to you, then there are many DIY filter solutions on thingiverse that are compatible with each of the major manufacturer’s respirators, for 3M, MSA, etc.

Part Description:

HONEYWELL_SPERIAN_VALUAIR_TO_40MM_NATO_ADAPTER_GEN1.stl

Initial model release.

Disclaimers/Risks:

1.) Requires 40 mm OD gasket or o-ring on the interior pocket for RD40x1/7 threads.

2.) Ensure to perform a proper negative pressure test. Follow SSPs established by your institution or workplace for further guidance. But in general, don your respirator, adjust straps till taught against face, ensuring no obstructions around the periphery of the seal against face either due from hair, facial hair, or otherwise. Exhale deeply. Cover all exhalation ports. (Typically, most full face or half face respirators have two filters, so cover those intake ports with your hands. If your running only one filter, ensure the opposite port has filter cap in place.) Now inhale deeply. The mask should suck tightly against your face without any air leakages. Re-test if adjustments are required at gasket/o-ring interfaces at the adapter.

3.) 3D printing materials are not resistant to many solvents, are water soluble, and degrade when exposed to chemicals, heat, and UV/sunlight. 3D printing this adapter is only a temporarily ad-hoc solution against biological contagions, Highly recommended users apply a thin layer of polyurethane clear coat on all exterior surfaces, spray or dip based, to help resiliency and durability for repeated sterilization and to reduce fomite transmission in printed infill layers. Although will increase print time, if possible perform hot nozzle pass on exterior surfaces, to further reduce surface porosity, Once supply chains return to normal, users should purchase OEM OSHA/NIOSH/EN standard approved adapters and respirator accessories for their institution and workplaces.

Dev. Notes:

05/07/2020 – Initial model release. In work, pending 3D printing community support for any fitment and model revisions.

Credits:

Thanks to NoSiGnAl-H3 for the Honeywell Valuair adapter to TentaCat0702 MK2 design. Used images and his ID/OD and depth dimensions to extrapolate the filter side attachment geometry.
https://www.thingiverse.com/thing:4334272