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Miller 4244955 LPR-100 Welding Respirator P100 Filters — main product image
Miller 4244955 LPR-100 Welding Respirator P100 Filters
Miller 4244955 LPR-100 Welding Respirator P100 Filters
Miller 4244955 LPR-100 Welding Respirator P100 Filters
Miller 4244955 LPR-100 Welding Respirator P100 Filters
Miller

Miller 4244955 LPR-100 Welding Respirator P100 Filters

★★★★★4.6 (340 reviews)

Miller LPR-100 P100 replacement filters deliver 99.97% particulate filtration designed to fit under welding helmets.

$46.25*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Miller 4244955 P100 replacement filters are designed for use with the Miller LPR-100 Half Mask Respirator, providing professional-grade respiratory protection in welding and fabrication environments. Rated at P100, these filters capture up to 99.97% of airborne particulates and aerosols, covering both oil-based and non-oil-based contaminants commonly encountered during welding, grinding, and cutting operations.

The filters are engineered to work with the LPR-100's low-profile form factor, which is specifically shaped to fit beneath most welding helmets and the Miller Weld-Mask 2 without interfering with the seal or sightline. The medium/large sizing matches the respirator's fit range. Sold as a two-pack, these filters are a necessary consumable for maintaining the respirator's protective performance — once breathing resistance increases or filters show signs of wear, timely replacement ensures continued compliance with workplace safety standards.

Key Features

LPR-100 Half Mask Respirator 2 - P100 Filters

Specifications

Brand
Miller
Model
4244955
Filter Type
P100
Filtration Efficiency
Up to 99.97%
Particulate Coverage
Oil-based and non-oil-based
Respirator Compatibility
Miller LPR-100 Half Mask Respirator
Size
Medium/Large
Quantity
2 Filters
Helmet Compatibility
Fits under most welding helmets and Weld-Mask 2

Pros & Cons

👍 Pros

  • P100 rating provides the highest level of particulate filtration at 99.97% efficiency
  • Compatible with both oil-based and non-oil-based airborne particulates and aerosols
  • Designed specifically for the low-profile LPR-100 respirator that fits under welding helmets
  • Simple replacement process allows quick filter changes between jobs

👎 Cons

  • Only compatible with the Miller LPR-100 respirator, limiting use if you have a different mask
  • Package contains only 2 filters, which may require frequent reordering in heavy-use environments
  • Filters are particulate-only and do not protect against gases or vapors
  • No indicator to signal when filter efficiency has degraded and replacement is needed

Frequently Asked Questions

These P100 filters are designed specifically for the Miller LPR-100 Half Mask Respirator.
The package includes 2 P100 replacement filters.
P100-rated filters capture up to 99.97% of airborne particulates and aerosols, including both oil-based and non-oil-based particles.
Replacement frequency depends on the working environment and exposure levels. Filters should be replaced when breathing resistance increases noticeably, when they become damaged, or according to your workplace safety guidelines.
No, these are proprietary Miller filters designed for the LPR-100 respirator and are not interchangeable with other brands.

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