At Eoleaf, transparency and scientific rigor are at the heart of everything we do. That’s why we’re delighted to share the results of an independent performance test conducted by air-Q, one of the leading European manufacturers of high-precision indoor air quality monitors.
They tested our NeoPur 400 air purifier in their laboratory. Their findings?
The Eoleaf NeoPur 400 delivers fast, effective, and measurable purification — even in challenging, smoke-filled conditions. You will find the full results of the independent test of the NeoPur 400 here. Read the resume below.
Test procedure
Air purifiers are far too often presented and compared purely based on marketing claims or manufacturer specifications, but the true measure of performance comes from independent evaluations using professional, high-precision instruments. air-Q conducted this test using their own laboratory and equipment. For anyone seeking an objective assessment of the NeoPur 400, these results provide valuable validation.
Their methodology, simple and universally reproducible, involved intentionally polluting a 10 m² (108 sq ft) room with an incense stick, generating high concentrations of:
Using their air-Q Pro monitor, they repeated the experiment twice and compared two scenarios: 1) the natural dissipation of the pollution, and 2) the filtration of the same pollution using Eoleaf’s NeoPur 400 air purifier.
The results: what air-Q measured
Ultra-fast PM2.5 removal
Smoke particles are among the most harmful indoor pollutants — and one of the best measures of a purifier’s strength.
- Without the NeoPur 400: PM2.5 took nearly 14 hours to fall to safe levels.
- With the NeoPur 400: PM2.5 dropped from heavily-concentrated smoke levels to under 10 µg/m³ in just 12 minutes, then continued all the way down to 0 µg/m³ shortly after.
air-Q’s conclusion: The NeoPur 400 cleans particulate pollution extremely quickly and thoroughly.
Strong VOC Reduction
VOCs are known to take longer to remove than fine particles, yet the NeoPur 400 produced a significant improvement.
- VOC concentrations dropped from over 14,000 ppb to around 2,200 ppb in only 8 minutes.
What this means for you
These independent results reaffirm what we strive to deliver to our clients:
- Powerful protection against air pollutants like PM2.5 and smoke particles
- Fast improvement in everyday indoor air quality
- Effective VOC reduction with natural, safe filtration
- Reliable performance validated by expert testing and independent certifications
We design our purifiers with a unique 8-step multi-layer filtration technology, so that clean air is not just a promise — but a reality achievable through proven performance.
Breathe better with Eoleaf
Eoleaf devices are built to offer clean, safe, and extremely effective air purification — and this independent test confirms their performance. This is why our air purifiers are all equipped with our 8-step air purification technology designed to remove all types of indoor air pollution (fine particles, chemical pollution, and biological pollution). Read more about Eoleaf's certifications and tests here.
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