This adapter has a proprietary impermeable center core topped with an authentic 3M inhalation port gasket.
The 3M gasket is required for 3M filters as it allows the filter to "lock in" providing an airtight seal as designed by 3M.
This adapter is constructed of PETG. PETG is durable, impact resistant, and tolerates temperatures up to 160 F.
This product will not melt in your car in the summer, and is also resistant to chemicals.
The adapter is shown as an example adapting a 3M filter to an Israeli gas mask.
NO GAS MASK or FILTER ARE INCLUDED.
Modern 3M filters are superior to expired or questionable military filters that may actually harm you to breathe through.
