Needle point bipolar ionization: environmental safety and inactivation of airborne bacteria and corona virus.

Environ Sci Pollut Res Int · 2025 · PMC12098470 · PMID 40299178

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a decreasing trendno p-value reported

In the first 5–10 min after switching on the NPBI device, there is a small jump, especially for very fine PMs (< 1 μm), and then a decreasing trend starts.

also in 47,180 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.