Finding F-0324

“Long-term (31-day) operation of the biofilter with the optimal parameters effectively reduced HCHO levels from 1.60 mg/m3 to 0.02-0.03 mg/m3, below China’s national standard, and maintained this level.”

Formaldehyde-Degrading Bacteria R1 Is Effective in Removing HCHO from the Air in an Indoor Environment (2024). Indoor Air. Page 1. CKB 0274

Structure

Factor: Formaldehyde (CH₂O)
Intervention: Air filtration and air purifiers
Setting: renovated room (sealed), CN (31 days)
Study design: laboratory and room experiments with a biofilter of sponge layers carrying the formaldehyde-degrading bacterium S-R1: sealed boxes, a prototype apparatus and a 31-day run in a renovated, closed room; co-authored by a biotechnology company (class 4)
Effect: difference
Caveat: co-authored by the company producing the bacterial preparation

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.