SEC 02 // PART RECORD

287172 Miller PAPR II Blower Assembly (Gen 2)

Verified against primary source · 2026-07-06 blower · current · US

Fits these systems

Systems this part fits, with compatibility status and evidence
SystemCompatibility statusEvidence
Miller Miller PAPR II (Gen 2) T1 Officially approved
  1. [01] www.millerwelds.com manufacturer manual Miller owner's manual OM-OTC-287373 Rev D (2024-07), "Powered Air-Purifying Respirator (PAPR) Blower Units," Section 4 "NIOSH Approval, Cautions, and Limitations" (p.12): "The Miller PAPR2 Powered Air Purifying Respirator Blower Assembly is one component of a NIOSH approved respiratory system... manufactured by OTOS Tech. Co. Ltd. for Miller Electric Mfg. LLC under NIOSH approval numbers TC21C-1239, TC21C-1342, TC21C-1345, and TC21C-1198." Blower assembly itself listed as item 1, part 287172, in Section 8 "Parts List," Figure 8-1 "Powered Air Purifying Respirator (PAPR) Gen 2 Blower Assembly" (p.26). Archived in repo at sources/miller-o287373d_mil.pdf. 2026-07-06

Specifications

Technical specifications
Size8.25 x 7 x 3.25 in. (210 x 178 x 76 mm)
Weight (assembly w/ filters, belt, shoulder straps, and battery)48 oz. (1362 g)
Air flowLow: 6.18+ CFM (175+ LPM); Medium: 6.89 CFM (195 LPM); High: 7.59 CFM (215 LPM)
Operating temperature23° to 131°F (-5° to 55°C)
Storage temperature14° to 176°F (-10° to 80°C)
Battery typeRechargeable lithium (287178), ~3 h charge time, 500-charge rated life
NIOSH approval numbersTC-21C-1239, TC-21C-1342, TC-21C-1345, TC-21C-1198 (blower + T94iH-R/T94i-R/T94i-R XL/T94-R/Face Shield hood combinations), manufactured by OTOS Tech Co. Ltd. for Miller Electric Mfg. LLC

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No exact store listing is recorded for this part. Continue with the documented system parts record, the supplier directory, or contact the affiliated UK store or US store to identify the correct regional SKU. An enquiry is not a claim of current stock or that another SKU is a substitute.

The Face Mask Store (UK), USA Face Mask Store and this site have the same owner. These links are commercial enquiry routes.

Listing ≠ endorsement. Confirm availability, approval status and source evidence before purchase or regulated workplace use.

Notes

This manual (OM-OTC-287373 Rev D, 2024-07) is scoped entirely to the "Gen 2 PAPR" blower — every operating-instructions figure is explicitly labelled "Gen 2 PAPR." It does not contain a Gen-1 parts section, so no Gen-1 fitment rows are added from this source. The manual's troubleshooting table (Section 7, p.25) does cross-reference Gen 1: "Use charger 244132 for battery 244131. Use charger 282077 for battery 282076 and battery 287178" — useful confirmation that the 282077 charger serves two battery part numbers (287178 already on file; 282076 not yet a record).

Record sources

Evidence — dated sources
  1. [01] www.millerwelds.com manufacturer manual OM-OTC-287373 Rev D (2024-07), Section 4 (p.12), Section 5-1 Respirator Specifications (p.13), and Section 8 Parts List Figure 8-1 (p.26). Archived at sources/miller-o287373d_mil.pdf. 2026-07-06