Official 3M guide explaining proper use, fit testing and specifications for the HPM‑528‑D N95 respirator.
This guide, prepared for healthcare providers, explains why N95 respirators are essential in medical settings and describes the standards that the 3M HPM‑528‑D mask meets. It covers mask types, filter efficiency and the importance of a proper seal to protect against airborne infections such as tuberculosis and COVID‑19.
The document details qualitative and quantitative fit‑testing procedures, recommended testing frequency, and how to perform a user‑seal check. It also provides practical tips for donning and doffing the mask and interpreting fit‑test results. This manual is written in Japanese.
| Filter efficiency | 95 % |
|---|---|
| Fit factor passing criterion | FF ≥ 100 |
| Recommended fit‑test frequency | At least once per year |
A quantitative fit test passes when the fit factor (FF) is 100 or higher.