Hearing Protection · Howard Leight · Maximum

Howard Leight Maximum Ear Plugs

Every Howard Leight Maximum ear plug we stock: 10 styles, 10 part numbers; NRR 33 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.

Maximum styles

Part number	Item	Price
MXM-1-D	Howard Leight Maximum MXM-1-D Ear Plugs, NRR 33, Uncorded, Dispenser Refill NRR 33	$343.00
MXM-LS4-REFILL	Howard Leight Maximum MXM-LS4-REFILL Ear Plugs, NRR 33, Uncorded NRR 33	$326.00
MXM-30	Howard Leight Maximum MXM-30 Ear Plugs, NRR 33, Corded NRR 33	$364.00
MXM-5-H5	Howard Leight Maximum MXM-5-H5 Ear Plugs, NRR 33, Uncorded, 5 Pair NRR 33	$580.00
MXM-30-REFILL	Howard Leight Maximum MXM-30-REFILL Ear Plugs, NRR 33, Corded, Dispenser Refill NRR 33	$565.00
MXM-5-30	Howard Leight Maximum MXM-5-30 Ear Plugs, NRR 33, Corded NRR 33	$548.00
MXM-1	Howard Leight Maximum MXM-1 Ear Plugs, NRR 33, Uncorded NRR 33	$381.00
HL400-MXM-REFILL	Howard Leight Maximum HL400-MXM-REFILL Ear Plugs, NRR 33, Uncorded NRR 33	$148.00
HL400-MXM-30-AM	Howard Leight Maximum HL400-MXM-30-AM Ear Plug Dispensers, Prefilled, NRR 33 NRR 33	$185.00
HL400-MXM-INTRO-AM	Howard Leight Maximum HL400-MXM-INTRO-AM Ear Plug Dispensers, Prefilled, NRR 33 NRR 33	$99.99

Source: PIP Rich Product Data, October 2026.

Maximum ratings by style

Style	NRR	SNR	Type	Material	Box count	Sold by
MXM-1-D	33	37	Uncorded earplug	Polyurethane Foam	500	Case
MXM-LS4-REFILL	33	37	Uncorded earplug	Polyurethane Foam	200	Case
MXM-30	33	37	Corded earplug	Polyurethane Foam	100	Case
MXM-5-H5	33	37	Uncorded earplug	Polyurethane Foam	5	Case
MXM-30-REFILL	33	37	Corded earplug	Polyurethane Foam	400	Case
MXM-5-30	33	37	Corded earplug	Polyurethane Foam	5	Case
MXM-1	33	37	Uncorded earplug	Polyurethane Foam	200	Case
HL400-MXM-REFILL	33	37	Uncorded earplug	Polyurethane Foam	400	Case
HL400-MXM-30-AM	33	37	Corded earplug	Polyurethane Foam	400	Case
HL400-MXM-INTRO-AM	33	37	Uncorded earplug	Polyurethane 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.

Maximum 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 Maximum Ear Plugs questions

What are Howard Leight Maximum ear plugs made of? PU foam, as PIP lists them.

What NRR do Howard Leight Maximum ear plugs have? NRR 33 dB (EPA label, ANSI S3.19-1974) across the 10 styles, as PIP publishes it.

Which Howard Leight Maximum styles do you stock? MXM-1-D, MXM-LS4-REFILL, MXM-30, MXM-5-H5, MXM-30-REFILL, MXM-5-30, MXM-1, HL400-MXM-REFILL, HL400-MXM-30-AM and HL400-MXM-INTRO-AM.

How are Howard Leight Maximum ear plugs sold? By the case; the part number on each style page is what you order.