Howard Leight FirmFit Ear Plugs
Every Howard Leight FirmFit ear plug we stock: 5 styles, 5 part numbers; NRR 30 dB. Ratings below are as published by PIP for each style. Ships in 1–2 business days; most orders arrive in 3–7 business days.
FirmFit styles
Source: PIP Rich Product Data, October 2026.
FirmFit ratings by style
| Style | NRR | SNR | Type | Material | Box count | Sold by |
|---|---|---|---|---|---|---|
| FF-1-D | 30 | 37 | Uncorded earplug | PVC Foam | 500 | Case |
| FF-30 | 30 | 30 | Corded earplug | PVC Foam | 100 | Box |
| HL400-FF-INTRO-AM | 30 | 30 | Uncorded earplug | PVC Foam | 400 | Case |
| HL400-FF-30-AM | 30 | 37 | Corded earplug | PVC Foam | 400 | Case |
| HL400-FF-REFILL | 30 | 37 | Uncorded earplug | PVC Foam | 400 | Case |
Source: PIP Rich Product Data, October 2026; PIP, "Ear Muffs" brochure (May 2023, page 1: What is NRR?). Ratings are as published by the manufacturer, not a recommendation for any task.
FirmFit literature
PIP publishes "Howard Leight Hearing Conservation Guide" (PDF) for this series.
Guides: what NRR means · how to insert ear plugs · reusable vs disposable · when hearing protection is required · NRR vs SNR · every ear plug and ear muff by NRR.
Howard Leight FirmFit Ear Plugs questions
What are Howard Leight FirmFit ear plugs made of? PVC foam, as PIP lists them.
What NRR do Howard Leight FirmFit ear plugs have? NRR 30 dB (EPA label, ANSI S3.19-1974) across the 5 styles, as PIP publishes it.
Which Howard Leight FirmFit styles do you stock? FF-1-D, FF-30, HL400-FF-INTRO-AM, HL400-FF-30-AM and HL400-FF-REFILL.
How are Howard Leight FirmFit ear plugs sold? By the case and box depending on the style; the part number on each style page is what you order.