3M 40mm GOST(NATO) adapters

thingiverse

This is a collection of adapters designed specifically for use with both 3M masks and Russian masks, enabling the seamless integration of 40mm filters across these two mask types. To achieve optimal results, it's essential that these adapters are used in conjunction with rubber rings for a tight seal. When printing parts, supports should be utilized to ensure structural integrity; however, it's recommended that any supports present in threaded areas be removed to prevent damage to the thread. Some double-mounted components may contain unavoidable supports that contribute to improved filtration performance. Please note that users assume all risk when employing these adapters.