MHI Sells Beaver Masks to Celebrate 50th Anniversary
2021-03-01
In December 2020, Mitsubishi Heavy Industries Thermal Systems (MHI Thermal Systems) began selling single-use general purpose (non-medical) face masks called Beaver masks, which were created by utilizing ‘bio clear filter’ technology used for MHI room air conditioners (RACs), namely Beaver air conditioners.
