Independent lab test #687
Well-Before Well Before Adults KN95 Mask Review - Independent Lab Test Results
Well-Before KN95 mask passed its KN95 benchmark with 98.2% filtration and 167 Pa airflow resistance.
- Standard
- KN95
- Origin
- China
- Source
- Wellbefore
TL;DR
What the lab found
- Well-Before KN95 mask measured 98.2% filtration versus all Armbrust-tested masks (n=365).
- At 167 Pa, Well-Before KN95 mask had lower breathing resistance than 45.2% of KN95 masks (n=85).
- Its construction score of 20 ranked better than 60.8% of all Armbrust-tested masks (n=363).
Lab results
Test results table
| Measurement | Result | Status |
|---|---|---|
| Overall result | Passed | Passed |
| Filtration efficiency | 98.2% | Pass |
| Airflow resistance | 167.0 Pa | Pass |
| Construction score | 20/25 | Lab score |
| Smell score | 20/25 | Lab score |
Verdict
Why it passed
Well-Before KN95 mask passed because its filtration was 98.2% and airflow resistance was 167 Pa.
Construction
Construction & Materials
The construction score was 20/25 in the Armbrust lab review. This score is kept separate from filtration and airflow so the physical build does not hide the protective result.
Fit notes
How it feels
When we tested this model we were impressed by the build quality, fit, and filtration.
FAQ
Common questions
Does Well-Before KN95 mask pass Armbrust's lab test?
Well-Before KN95 mask passed Armbrust's lab test.
What filtration score did Well-Before KN95 mask get?
Well-Before KN95 mask measured 98.2% filtration in the lab test.
How breathable is Well-Before KN95 mask?
Well-Before KN95 mask measured 167 Pa airflow resistance in the lab test.
Mask safety newsletter
Get 30% off your first order + quarterly mask safety updates
Lab result summaries, failed-mask alerts, and practical mask safety notes from Armbrust.
Want quick mask safety updates? Add your number.
Optional. We use Attentive for secure SMS opt-in.
Secure Attentive signup opened. Finish there to confirm SMS.
Check your inbox for your 30% off code.
Email updates are set.
Related masks