respirator mask with 40mm tread for p100 filter

thingiverse

Human: This is a remake and summary taken directly from the original source. This is a one-piece model designed to accept a 40mm HE/P100 filter using threads. DISCLAIMER: Although not approved by any regulatory agency, this model can be used as a last resort if other homologated protection options are unavailable. However, use it at your own risk and follow these recommended measures to protect yourself from COVID-19: • Stay home and avoid contact with others • Avoid touching your face with your hands • Wash your hands frequently Note: This model includes the mask structure (3 pieces) but does not include a filter to block virus spread. Additional isolation measures may be necessary for proper fit without air gaps. Check comments for user-shared information about suitable filters, such as P3 particle filters or HEPA 12/13. However, effectiveness cannot be confirmed due to lack of analysis means. Use this model at your own risk.