Milla EURMASK® ETNA (Bayonet) Respirator to 40MM NATO (RD40x1/7) Adapter

thingiverse

MILLA EURMASK ETNA BAYONET TO 40MM NATO ADAPTER GEN1 ================================================================ This innovative prototype design allows for a seamless connection between Milla EURMASK ETNA (Bayonet) respirators and 40MM NATO (RD40x1/7") threaded canisters or step-down adapters to other respirator manufacturer filter cartridges. This adapter ensures cross-compatibility of commercial off-the-shelf (COTS) filters with various manufacturers' respirators during the global PPE shortage. If you cannot source 40MM NATO (RD40x1/7") thread filters, consider stepping down to the following adapters: * 40 MM NATO to 3M Filter Adapter + https://www.thingiverse.com/thing:4245358 * 40MM NATO to Scott 742 Series Filter Adapter + https://www.thingiverse.com/thing:4347531 * 40 MM NATO to MSA Bayonet Filter Adapter + https://www.thingiverse.com/thing:4265715 * 40MM NATO to MSA Comfo Classic Filter Adapter + https://www.thingiverse.com/thing:4267676 * 40 MM NATO to Honeywell/Honeywell North Filter Adapter + https://www.thingiverse.com/thing:4268775 * 40MM NATO to Honeywell Sperian Filter Adapter + https://www.thingiverse.com/thing:4297348 * 40MM NATO to Honeywell Safety Sperian/Survivair ValuAir (Bayonet) Filter Adapter + https://www.thingiverse.com/thing:4345345 * 40MM NATO to AOSafety Threaded Filter Adapter + https://www.thingiverse.com/thing:4273365 * 40 MM NATO to Milla EURMASK ETNA (Uno/New) Series Threaded Filter Adapter + https://www.thingiverse.com/thing:4342343 And if no filter cartridges are available, explore DIY filter solutions on Thingiverse compatible with major manufacturers' respirators. Part Description: ============== MILLA_EURMASK_ETNA_BAYONET_TO_40MM_NATO_ADAPTER_GEN1.stl Initial model release. Disclaimers/Risks: =============== 1. Use Proper Gaskets Requires 40 mm OD gasket or o-ring on the interior pocket for RD40x1/7 threads. Requires gasket underneath the bayonet, nominal ID of 25.596 MM. 2. Perform Proper Negative Pressure Test Follow SSPs established by your institution or workplace for further guidance. 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 inhalation ports. Now inhale deeply. The mask should suck tightly against your face without any air leakages. 3. Use At Own Risk – Temporarily Solution Only Until Supply Chain Normalizes 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. Dev. Notes: ======== 05/05/2020 - Initial model release. In work, pending 3D printing community support for any fitment and model revisions. Credits: ====== Thanks to drzejkopf for his Milla EURMASK ETNA to DAR filter adapter design. https://www.thingiverse.com/thing:4318660