We have completed evaluating our prototypes and are assembling our presentation. We were delayed by a computer crash, but we will be able to re-assemble the lost data.
Our best prototype will clean the air in an 1100 square foot home to US hospital standards for a $50 investment up front and an ongoing cost of 1.5 cents per day. The $50 investment came with a 5-year warrantee, so it should outlast the current crisis.