Moldex 4700N100 AirWave N100 Respirator Review — 99.97% Non-Oil, Easy Breathing

Is the Moldex 4700N100 the highest-filtration non-oil disposable worth buying?

Published June 20, 2026 · Last updated July 27, 2026

Short answer: If your hazard is non-oil, yes. The Moldex 4700N100 is a NIOSH N100 — 99.97% efficiency against non-oil particulate — on the low-resistance AirWave design, so you get near-absolute filtration of dusts, fumes, lead, and silica without the hard breathing N100s are known for. If any oil mist is present, choose the P100 4400P100 instead.

Moldex 4700N100 AirWave N100 Respirator with SmartStrap and Valve Review (2026)

The Moldex 4700N100 is the non-oil top-filtration AirWave. This review covers where it fits the N99 & N100 respirators and Moldex disposable respirators ranges. Ratings background is in our complete disposable respirator & N95 mask guide.

Editorial verdict — 4.4/5
The Moldex 4700N100 delivers N100's 99.97% non-oil filtration in the comfort-focused AirWave platform. The wave design keeps breathing resistance low despite the dense N100 media, SmartStrap dials the fit, and the Ventex valve vents heat — a strong pick for lead, heavy metal fume, and high silica where no oil is present.VIEW ON WC SAFETY →CHECK PRICE ON AMAZON →

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Who it is for

• Lead, heavy metal fume, or high silica (non-oil) needing 99.97% filtration
• Workers who need N100 protection but hate hard-breathing masks
• Anyone comparing the N99 & N100 respirators

What the Moldex 4700N100 AirWave does well

99.97% non-oil filtration

N100 captures essentially all non-oil particulate — a step beyond N95/N99 for the most demanding dust and fume. See P100 vs N100 vs N95 guide.

AirWave low resistance

The wave design keeps breathing effort low despite the dense N100 media — the comfort edge.

SmartStrap + Ventex valve

Adjustable fit and heat-venting valve for long, heavy work.

It is worth explaining why that comfort claim is more than marketing. N100 media is dense by necessity — to capture 99.97% of particles it presents more resistance to airflow than the looser media in an N95, which is the reason the highest-filtration disposables have a reputation for hard breathing. Moldex's answer is geometric rather than chemical: the AirWave's three-panel "wave" face increases the total surface area of filter media presented to the breath. More area means each square inch carries less of the airflow, so breathing resistance drops even though the media itself is the demanding N100 grade. For a worker wearing an N100 across a full shift in lead abatement or a foundry, that lower inhalation effort is the difference between a respirator that gets worn correctly all day and one that gets tugged loose for relief — which is exactly when protection is lost. Pairing that with the Ventex exhalation valve, which dumps warm, moist exhaled air, addresses the other long-wear complaint: heat and humidity build-up inside the facepiece.

Where the Moldex 4700N100 AirWave falls short

Non-oil only

N100 is not oil-rated; if oil mist is present, choose the P100 4400P100.

Premium price

Reserve N100 for jobs that justify it; N95 covers general dust for less.

Valved, single-use

No source control; a consumable.

The non-oil limitation deserves to be understood, not just noted. The "N" in N100 means the respirator is not resistant to oil; its 99.97% rating is validated against a non-oil aerosol only. In the presence of oil mist — machining coolants, certain lubricants, some pesticide carriers — an N-series filter can degrade in performance over time, which is why NIOSH defines the R (oil-resistant) and P (oil-proof) series separately. This is not a flaw in the 4700N100; it is a class definition, and it is the single most important selection question for this mask. If you cannot rule out oil in your atmosphere, the answer is not "buy the N100 anyway" — it is the identically built P100 4400P100, which gives the same 99.97% efficiency with oil-proof media. Getting this one decision right matters far more than any comfort feature.

Moldex 4700N100 AirWave vs the competition

The most useful comparison is the one inside the AirWave family itself: the 4700N100 and the 4400P100 are the same mask in two filter classes, so the decision between them is purely about whether oil mist is present, not about comfort, fit, or build. Against the cup-style 3M 8233 the trade is structural: the 3M is a rigid molded cup that some faces seal against more readily and that holds its shape well, while the Moldex flat-fold wave prioritizes low breathing resistance and packs flatter for storage. Neither is universally "better" — fit is individual, which is why a fit test, not a spec sheet, settles it. If your face is smaller and the regular Moldex fails the seal, the 4701N100 small is the same protection in a reduced size rather than a different product.

Compare prices on Amazon →Moldex 4700N100Moldex 4400P1003M 8233

When to step up from the Moldex 4700N100 AirWave

Oil mist present? The P100 4400P100. Smaller face? The 4701N100 small. General dust only? Save with an N95. Filtration classes in our P100 vs N100 vs N95 guide.

Fit, fit testing, and correct use

No disposable respirator protects beyond its seal, and that is doubly true for an N100 — buying 99.97% media is wasted money if air leaks around the edges of a poor fit. Under OSHA 29 CFR 1910.134 any required use means a medical evaluation first, then an annual fit test on the exact make, model, and size you will wear, and a user seal check every time the respirator is donned. The 4700N100's SmartStrap helps a wearer dial in tension consistently, but it does not substitute for the formal fit test. Facial hair across the sealing surface is disqualifying — a beard along the seal line will fail the fit test, and the OSHA-compliant alternatives are clean-shaven wear or a loose-fitting PAPR. Our respirator sizing guide and how to fit-test a respirator walk through the measurement and the QLFT/QNFT protocols; the beard question specifically is covered in can you wear a respirator with a beard?.

Category context

The 4700N100 is the non-oil top-filtration AirWave in the disposable respirators range. When N100 is warranted is covered in our disposable respirator guide and N95 vs P100.

Total cost of ownership

A premium max-protection consumable. Replace when soiled, damaged, or hard to breathe through (see can you reuse an N95?). For constant N100 use, weigh a reusable half mask with P100 filters.

The cost case turns on duty cycle. For intermittent or task-based N100 work — a periodic abatement job, occasional foundry exposure — a disposable like the 4700N100 is the economical choice because there is no facepiece to clean, store, or maintain, and no filter inventory to manage. The math flips for daily, all-shift N100 exposure: there, the per-day cost of disposables adds up, and a reusable half mask fitted with P100 cartridges amortizes its higher up-front price over months of use while also covering oil mist. The honest guidance is to match the consumable to the cadence — do not pay N100 disposable prices for routine dust an N95 would handle, and do not run a high-frequency N100 program on disposables when a reusable would cost less over a quarter.

Final verdict

The Moldex 4700N100 AirWave earns 4.4/5 — near-absolute non-oil filtration that breathes easy. Buy it for lead, heavy fume, and high silica with no oil; step to the P100 4400P100 if oil mist is present, or the 4701N100 for smaller faces.

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Moldex 4700N100 AirWave FAQ

What does N100 mean on the Moldex 4700N100?

N100 is 99.97% minimum filtration efficiency against non-oil particulate — the highest non-oil disposable class, a step above N95 (95%) and N99 (99%).

Moldex 4700N100 vs 4400P100 — what is the difference?

Both filter 99.97% on the AirWave platform; the 4700N100 is non-oil (N100), the 4400P100 is oil-proof (P100). Choose P100 if oil mist is present.

Is the Moldex 4700N100 good for lead abatement?

Yes for non-oil lead exposure — its 99.97% efficiency suits high particulate (with required controls and a written program). For constant use also consider a reusable half mask.

Does the Moldex 4700N100 protect against oil?

No — N100 is non-oil; it filters 99.97% of non-oil particulate. For oil mist use an R95 or P100.

Is the Moldex 4700N100 good for silica or lead?

Yes for non-oil exposure — N100's 99.97% efficiency suits high silica, lead, and heavy fume where no oil is present; if oil is present choose P100. See silica dust respirators.

Can you reuse the Moldex 4700N100?

Single-use with limited reuse when constrained; discard when soiled, damaged, or hard to breathe through. See can you reuse an N95?.

Does the Moldex 4700N100 require fit testing?

Yes for OSHA-regulated use — medical evaluation, annual fit test, and seal check per OSHA 29 CFR 1910.134.

Can I wear the Moldex 4700N100 with a beard?

No — facial hair across the seal fails the fit test; clean-shaven along the seal is required, or use a PAPR.

Is the Moldex 4700N100 latex-free?

Yes — Moldex respirators are made 100% PVC-free and latex-free, reducing irritation and contamination risk.

How long does the Moldex 4700N100 last?

No fixed hours — replace at end of task or when dirty, damaged, or breathing resistance rises.

Is the Moldex 4700N100 a surgical respirator?

No — it is an industrial respirator without FDA clearance. See surgical N95 respirators.

Where is the Moldex 4700N100 made?

Moldex is a US-based respirator manufacturer, and its masks are produced PVC-free and latex-free. Browse the full Moldex disposable respirators line.

Moldex 4700N100 vs 4701N100 — which size?

Same N100 AirWave mask; the 4701N100 is the small size for smaller faces that fail the regular fit. Fit-test to confirm.

Can the Moldex 4700N100 be used for source control?

No — the valve releases unfiltered breath; use an unvalved respirator to protect others.

Moldex 4700N100 vs 3M 8233 — which N100 disposable?

Both are valved N100s; the Moldex emphasizes low-resistance AirWave breathing and SmartStrap, the 3M 8233 a molded cup with face seal. Choose by breathing feel and fit.

What does the Ventex valve on the Moldex 4700N100 do?

The Ventex exhalation valve opens on the out-breath to release warm, moist exhaled air, cutting heat and humidity build-up inside the facepiece. Inhaled air is still drawn through the N100 media, so the valve improves comfort without reducing the protection you breathe in. Because it vents unfiltered exhaled breath, a valved mask is not for source control.

What assigned protection factor (APF) does the Moldex 4700N100 carry?

As a filtering facepiece (a disposable, not a tight-fitting elastomeric half mask), it carries the OSHA assigned protection factor of 10 — the same APF as any properly fitted filtering facepiece regardless of N95 versus N100 class. The higher filter efficiency reduces penetration through the media, but the APF is set by the facepiece type and seal, so confirm your exposure assessment requires no more than an APF of 10 before relying on it.

How should the Moldex 4700N100 be stored before use?

Keep unused masks in their original packaging, in a clean, dry place away from contamination, crushing, sunlight, and extreme heat until the moment of use. Do not store a worn mask loose in a pocket or hung where it collects dust; if it must be set aside briefly between uses, protect it from contamination and discard it once it is soiled, damaged, or harder to breathe through.