Making a Corsi-Rosenthal box using computer fans (12-V 0.9A) that will serve as an economical air purifier that serves to reduce the risk of transmissions in classrooms. #COVIDisAirborne
@jcagar I still believe a network of such PC fan/filter fixtures within a space is compelling to explore (akin to lighting design). A factory roll of MERV-13 or MERV-14 can most economically/simply achieve a desired fan/filter surface area ratio through simple shapes and construction methods. Scale/array to achieve desired CADR. The question remains how performant such a design is compared an equivalent box filter. (I gave my supplies away in hopes of that answer.)
@WilliamRamsey wouldn’t the filters buckle under negative pressure?
@jcagar will cavitate some, but minor frame would hold, or cardboard/plastic slats.
@WilliamRamsey to prevent occurence of buckling, lateral bracings must be provided, along with support systems.
@jcagar Right, which can be achieved easy enough. I don't believe the force is particularly awesome.
@jcagar Using a traditional box filter. DC barrel plugs could allow for interoperability of various fixture designs.
@jcagar two last things, regarding arrays:
https://www.etsy.com/listing/1156864558/fan-joiner-connector-mining-rig-120mm