They have not yet received niosh approval, but have completed testing to the n99 standard.

Do these come with replacement one-way valves? Or are they just the inner filter?

This is just the filter. Replacement valves can be purchased separately.

Do large RZ2 filters fit the medium mask or must I buy medium filters?

You should use the medium filters in a medium mask to achieve the best fit. You may notice excess material at the top or bottom of the mask if you use a large filter in the medium mask.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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RZ Mask - F1 Standard Replacement Filters (3 Pack) 99.9% Active Carbon Filtration with One-Way Discharge Valves, 3 Sizes

Product ID: 125529995

Details

Brand
RZ Mask
Color
White
Material
Polypropylene
Model Name
F1 Filter Pack
Size
Large

🦠99.9% filtration efficiency

🌬️Activated carbon odor neutralizer

🛡️360° airtight seal

Description

🛡️ Elevate your breath game—because clean air is the new power move.

TAILORED FIT - Three size options with a 360-degree seal for all-day comfort and protection.
ODOR OBLITERATOR - Activated carbon layer neutralizes fumes and unpleasant smells.
MICROSCOPIC DEFENSE - Filters particles down to 0.1 microns—breathe with confidence.
TRUSTED PERFORMANCE - Lab-tested 99.9% filtration efficiency backed by rave reviews.
UNIVERSAL COMPATIBILITY - Seamlessly fits RZ M1, M2, and M2.5 masks—upgrade your gear instantly.

The RZ Mask F1 Replacement Filters come in a convenient 3-pack, featuring dual-layer filtration that captures particles as small as 0.1 microns with 99.9% efficiency. Equipped with activated carbon to neutralize odors and available in three sizes with a 360-degree seal, these filters ensure a secure, comfortable fit compatible with multiple RZ Mask models. Perfect for professionals seeking reliable, breathable protection across diverse environments.

Specifications

Asin	B01N1TJNRG
Best Sellers Rank	#113 in Respirator Cartridges & Filters
Date First Available	July 14, 2011
Department	unisex-adult
Item Model Number	82798
Manufacturer	RZ Mask
Product Dimensions	6 x 6 x 0.5 inches; 0.48 ounces

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