Moldex 7740 IonicAir P100 Particulate Filter — Moldex 7000/9000 (Low Breathing Resistance)

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Read our hands-on Moldex 7740 IonicAir review for field-tested buyer notes.

Moldex 7740 IonicAir P100 Particulate Filter Overview

The Moldex 7740 IonicAir is a NIOSH-approved P100 particulate filter for Moldex respirators. It captures at least 99.97% of airborne particles and is oil-proof. Its IonicAir electrostatically-charged media lowers breathing resistance for easier, longer-wearing comfort. Start with our filter types explained and organic vapor vs P100 guides, then see the Moldex P100 filter guide.

As a Moldex P100 filter the Moldex 7740 IonicAir belongs to the Moldex respirator cartridges and filters range and fits Moldex 7000 and 7800 series half-mask respirators and 9000 series full-face respirators. Use it for particulate-only work, or pair it with a Moldex gas cartridge when vapors are present.

Where the Moldex 7740 IonicAir Fits

The Moldex 7740 IonicAir handles airborne particulate only. For gases you need a Moldex cartridge such as the 7100 organic vapor or 7200 acid gas, or a combination cartridge like the 7367 OV/AG / P100.

What Does the Moldex 7740 IonicAir Protect Against?

What the Moldex 7740 IonicAir Does NOT Protect Against

The Moldex 7740 IonicAir does not capture harmful gas or vapor concentrations. Add the 7100 for organic vapor, the 7200 for acid gas, or use the all-in-one 7367.

No air-purifying cartridge makes a dangerous atmosphere safe. Never use the Moldex 7740 IonicAir in an oxygen-deficient or IDLH (immediately dangerous to life or health) atmosphere, in unknown concentrations, or against gases with no warning properties — those conditions require a supplied-air or SCBA system, not a cartridge respirator.

Best Applications

Long-wear particulate work

Where comfort and breathing ease matter over a full shift, the IonicAir media lowers resistance.

Pairing with a gas cartridge

Add a Moldex gas cartridge for vapors, or use a 7367 combo.

Pros & Cons

Moldex 7740 IonicAir vs Other Moldex Filters

Moldex 7740 IonicAir vs the Alternatives

How it compares to the closest Moldex options:

• 7740 IonicAir vs standard 7740: same P100 protection; the IonicAir media lowers breathing resistance for easier, longer wear. Filter guide →
• 7740 IonicAir vs 7760: the 7760 adds nuisance OV/AG odor relief; the IonicAir prioritizes breathing comfort.
• 7740 IonicAir vs 7367: the 7367 adds OV/AG gas protection; the IonicAir is particulate only.

Moldex 7740 IonicAir Quick Answers

Does the Moldex 7740 IonicAir stop gases?

No — pair it with a Moldex gas cartridge such as the 7100 for vapors.

Does the Moldex 7740 IonicAir fit Moldex 7000 and 9000 respirators?

Yes — it fits the 7000 series half-mask and 9000 series full-face.

Is the Moldex 7740 IonicAir oil-proof?

Yes — P100 is the oil-proof particulate class.

Moldex 7740 IonicAir Specifications

Compatible Moldex Respirators

The Moldex 7740 IonicAir uses the Moldex bayonet connection, so it mounts on the Moldex 7000 series half-mask (and 7800 series) and the Moldex 9000 series full-face respirators. It does not fit 3M, Honeywell North or MSA facepieces.

Helpful Buying Guides

• Moldex 7000 vs 3M 6000 series
• How to choose a respirator cartridge
• Moldex 7100 vs 7300 vs 7600 upgrade guide
• organic vapor vs P100
• respirator cartridge color chart
• respirator filter types explained

Moldex 7740 IonicAir Frequently Asked Questions

What does the Moldex 7740 IonicAir protect against?

It is a P100 particulate filter: it captures at least 99.97% of airborne particles — dust, mist, fume, lead — and is oil-proof. It does not filter gases on its own.

Does the Moldex 7740 protect against gases?

No. For gases or vapors, pair it with a Moldex gas cartridge such as the 7100 (organic vapor), or use a combination cartridge like the 7367.

Which respirators does the Moldex 7740 fit?

It fits Moldex 7000, 7800 and 9000 series respirators via the Moldex bayonet connection. It does not fit 3M, Honeywell North or MSA facepieces.

What does IonicAir mean?

IonicAir media is electrostatically charged, which lets it capture P100-level particulate at a lower breathing resistance for easier, longer-wearing comfort.

Is the Moldex 7740 oil-proof?

Yes. P100 filters are oil-proof, so it can be used against oil-based mists as well as solid particulate.

Is the Moldex 7740 NIOSH-approved?

Yes, as a P100 filter under 42 CFR Part 84. Verify against the NIOSH Certified Equipment List.

How does the Moldex 7740 attach?

It snaps onto the Moldex bayonet, on its own for particulate-only work or in front of a Moldex gas cartridge.

How often should I replace the Moldex 7740?

Replace it when breathing resistance rises as particulate loads it, or when it is damaged or soiled.

Is the Moldex 7740 reusable?

The filter is used until its particulate service life is reached; the respirator is reusable across many filter changes.

Can I pair the Moldex 7740 with a gas cartridge?

Yes — snap it in front of a Moldex gas cartridge such as the 7300 OV/AG for gas plus particulate.

Is this the genuine Moldex 7740?

Yes. We link only to authentic, NIOSH-approved Moldex 7740 filters through legitimate supply channels.

How should I store the Moldex 7740?

Store it sealed in its original packaging, away from dust and moisture.