Blue Heaven Technologies performed an EN-1822-5 study on nine commercially-available air purifiers to determine the most penetrating particle size (MPPS) at a defined fan setting. 

The EN1822-5 test standard, evaluates a filters’ particle removal efficiency in a size range between (20 nm – 300 nm).

Download our Whitepaper for a full report on how to truly measure an air purifier's ability to clean your air. 

The test procedure was performed to evaluate the BFE of test articles at an increased challenge level. 

The air purifier was challenged with three VOCs representative of what are found in homes: formaldehyde, toluene, and D-limonene.

The test procedure was performed to evaluate the VFE of test articles at an increased challenge level.