North RU8500 Series Half Mask
The North RU8500 Series half mask: Soft, flexible silicone with dual sealing flange, sizes S, M, L, n-series threaded cartridge connectors. Below: every version with a live price, the 17 N-Series cartridges and filters whose manufacturer NIOSH approval labels list this series, the replacement parts, the NIOSH approvals and the OSHA assigned protection factors. Ships in 1–2 business days; most orders arrive in 3–7 business days.
RU8500 Series facepieces
| Part number | Item | Version | Price | |
|---|---|---|---|---|
| RU85001S | North RU8500 Series RU85001 Half Mask Respirator with Speech Diaphragm, Blue | Small | $550.00 | |
| RU85001M | North RU8500 Series RU85001 Half Mask Respirator with Speech Diaphragm, Blue | Medium | $550.00 | |
| RU85001L | North RU8500 Series RU85001 Half Mask Respirator with Speech Diaphragm, Blue | Large | $550.00 |
Source: North RU8500 Half Mask product family sheet; PIP Rich Product Data, October 2026.
Cartridges and filters NIOSH-approved with the RU8500 Series
| Part number | Item | Version | Price | |
|---|---|---|---|---|
| 75SCL | North 75SCL Defender Multi-Gas Vapor Cartridge Organic Vapor, Ammonia, Methylamine, Formaldehyde and Acid Gas (Chlorine, Hydrogen Chloride, Sulfur Dioxide, H…; label Olive | $16.99 | ||
| N75001L | North N75001L Organic Vapor (OV) Cartridge Organic Vapor; label Black | $15.49 | ||
| N75002L | North N75002L Acid Gas (AG) Cartridge Acid Gas (Chlorine, Hydrogen Chloride, Sulfur Dioxide, Hydrogen Fluoride, Chlorine Dioxide) and Formaldehyde; label White | $17.49 | ||
| N75003L | North N75003L Organic Vapor and Acid Gas (OV/AG) Cartridge Organic Vapor and Acid Gas (Chlorine, Hydrogen Chloride, Sulfur Dioxide, Hydrogen Fluoride, Hydrogen Sulfide, …; label Yellow | $16.49 | ||
| N75004L | North N75004L Ammonia and Methylamine Cartridge Ammonia and Methylamine; label Green | $17.99 | ||
| N750052L | North N750052L Mercury Vapor and Chlorine Cartridge with ESLI Mercury Vapor and Chlorine, with End-of-Service-Life Indicator (ESLI) for Mercury Vapor; label Olive | $49.49 | ||
| 75SCP100L | North 75SCP100L Defender Multi-Contaminant Cartridge with P100 Filter Organic Vapor, Ammonia, Methylamine, Formaldehyde and Acid Gas (Chlorine, Hydrogen Chloride, Sulfur Dioxide, H…; label Olive and Magenta | $30.99 | ||
| 7581P100L | North 7581P100L Organic Vapor (OV) Cartridge with P100 Filter Organic Vapor, with a P100 particulate filter (99.97% minimum filter efficiency) for all particulates; label Black and Magenta | $25.49 | ||
| 7583P100L | North 7583P100L Organic Vapor and Acid Gas (OV/AG) Cartridge with P100 Filter Organic Vapor and Acid Gas (Chlorine, Hydrogen Chloride, Sulfur Dioxide, Hydrogen Fluoride, Hydrogen Sulfide, …; label Yellow and Magenta | $26.99 | ||
| 7584P100L | North 7584P100L Ammonia and Methylamine Cartridge with P100 Filter Ammonia and Methylamine, with a P100 particulate filter (99.97% minimum filter efficiency) for all particulate…; label Green and Magenta | $32.99 | ||
| 75852P100L | North 75852P100L Mercury Vapor and Chlorine Cartridge with ESLI and P100 Filter Mercury Vapor and Chlorine, with End-of-Service-Life Indicator (ESLI) for Mercury Vapor, with a P100 particula…; label Olive and Magenta | $64.99 | ||
| 7586P100L | North 7586P100L Nitrogen Dioxide Cartridge with P100 Filter Nitrogen Dioxide, with a P100 particulate filter; label — | $43.99 | ||
| 7580P100 | North 7580P100 P100 Filters, Pack of 2 P100 particulate filter (99.97% minimum filter efficiency) for all particulates; label Magenta | $8.91 | ||
| 75FFP100 | North 75FFP100 Flexible Low-Profile P100 Filters, Pack of 2 Low profile P100 particulate filter (99.97% minimum filter efficiency) for all particulates; label Magenta | $8.29 | ||
| 75FFP100NL | North 75FFP100NL Flexible Low-Profile P100 Filters with Odor Relief, Pack of 2 Low profile P100 particulate filter (99.97% minimum filter efficiency) for all particulates; with odor relief …; label Magenta | $12.99 | ||
| 7506N95 | North 7506N95 N95 Pad Filters, Pack of 10 N95 non-oil particulate filter (95% minimum filter efficiency) for non-oil based aerosol particulates; label — | $14.49 | ||
| 7506R95 | North 7506R95 R95 Pad Filters, Pack of 10 R95 particulate filter (95% minimum filter efficiency). The chart notes R class filters are limited to 8 hours…; label — | $34.99 |
Source: The manufacturer's NIOSH approval label for each cartridge and filter (PIP Global Holdings, the North brand) lists the RU8500 Series facepieces as approved components; protection wording from the North Cartridge & Filter Reference Chart.
Filter retainers, adapters and caps
Source: North Cartridge & Filter Reference Chart.
RU8500 Series replacement parts and accessories
| Part number | Item | Version | Price | |
|---|---|---|---|---|
| 77BAG | North 77BAG Nylon Carrying Bag for Half Mask Respirators | $23.99 | ||
| B140001 | North B140001 Spare Inhalation Valves, Bag of 6 | $15.49 |
Source: North RU8500 Half Mask product family sheet and the North parts lists.
NIOSH approvals naming the RU8500 Series
The NIOSH Certified Equipment List carries 90 current approvals whose product line names the RU8500 Series: 11 chemical cartridge (TC-23C), 79 air-purifying particulate (TC-84A). The first 15:
| Approval | Product line | For protection against | Facepiece |
|---|---|---|---|
| TC-23C-3082 | RU8500 series halfmask respirator with mask mount cartridge | Organic Vapor | Half Mask |
| TC-23C-3083 | RU8500 series halfmask respirator with back pack mount cartridge | Organic Vapor | Half Mask |
| TC-23C-3084 | RU8500 series halfmask respirator with mask mount cartridge | Chlorine, Chlorine Dioxide, Formaldehyde, Hydrogen Chloride, Hydrogen Fluoride, Hydrogen S | Half Mask |
| TC-23C-3085 | RU8500 series halfmask respirator with back pack mount cartridge | Chlorine, Chlorine Dioxide, Formaldehyde, Hydrogen Chloride, Hydrogen Fluoride, Hydrogen S | Half Mask |
| TC-23C-3086 | RU8500 series halfmask respirator with mask mount cartridge | Chlorine, Chlorine Dioxide, Hydrogen Chloride, Hydrogen Fluoride, Hydrogen Sulfide, Organi | Half Mask |
| TC-23C-3087 | RU8500 series halfmask respirator with back pack mount cartridge | Chlorine, Chlorine Dioxide, Hydrogen Chloride, Hydrogen Fluoride, Hydrogen Sulfide, Organi | Half Mask |
| TC-23C-3088 | RU8500 series halfmask respirator with mask mount cartridge | Ammonia, Methylamine | Half Mask |
| TC-23C-3089 | RU8500 series halfmask respirator with back pack mount cartridge | Ammonia, Methylamine | Half Mask |
| TC-23C-3090 | RU8500 series halfmask respirator with mask mount cartridge | Chlorine, Mercury Vapor | Half Mask |
| TC-23C-3091 | RU8500 series halfmask respirator with mask mount cartridge | Ammonia, Chlorine, Chlorine Dioxide, Formaldehyde, Hydrogen Chloride, Hydrogen Fluoride, H | Half Mask |
| TC-23C-3092 | RU8500 series halfmask respirator with back pack mount cartridge | Ammonia, Chlorine, Chlorine Dioxide, Formaldehyde, Hydrogen Chloride, Hydrogen Fluoride, H | Half Mask |
| TC-84A-7529 | RU8500 series halfmask respirator with mask mount filter | P100 | Half Mask |
| TC-84A-7530 | RU8500 series halfmask respirator with back pack mount filter | P100 | Half Mask |
| TC-84A-7531 | RU8500 series halfmask respirator with mask mount cartridge and filter | Organic Vapor, P100 | Half Mask |
| TC-84A-7532 | RU8500 series halfmask respirator with back pack mount cartridge and filter | Organic Vapor, P100 | Half Mask |
Source: NIOSH Certified Equipment List (October 2026).
Assigned protection factor
| Respirator type (OSHA Table 1) | APF |
|---|---|
| Air-purifying half mask | 10 |
| Powered air-purifying half mask | 50 |
| Supplied-air respirator, continuous flow, half mask | 50 |
Source: OSHA 29 CFR 1910.134 Table 1 (Assigned Protection Factors). The APF applies only when the respirator is used in a program that meets the standard, including fit testing of tight-fitting facepieces (29 CFR 1910.134(f)) and a cartridge change schedule (29 CFR 1910.134(d)(3)(iii)).
RU8500 Series NIOSH approval statement: NIOSH approved as an air-purifying respirator with mask-mount and backpack-mount N-Series cartridges and filters (NIOSH CEL) (North RU8500 Half Mask product family sheet).
Guides: half mask vs full facepiece · assigned protection factors · cartridge change schedules · P100 vs N95 vs R95 · what OSHA requires for fit testing · cleaning and storing respirators.
North RU8500 Series Half Mask questions
Which cartridges and filters are approved with the North RU8500 Series? 75SCL, N75001L, N75002L, N75003L, N75004L, N750052L, 75SCP100L, 7581P100L, 7583P100L, 7584P100L, 75852P100L, 7586P100L, 7580P100, 75FFP100, 75FFP100NL, 7506N95, 7506R95 (manufacturer NIOSH approval labels).
What sizes does the RU8500 Series come in? S, M, L: RU85001S, RU85001M, RU85001L.
What is the RU8500 Series face seal made of? Soft, flexible silicone with dual sealing flange.
What is the assigned protection factor of the RU8500 Series? Air-purifying half mask 10; Powered air-purifying half mask 50; Supplied-air respirator, continuous flow, half mask 50 (OSHA Table 1).
What is the part number for the organic vapor cartridge for the 7700 North half mask? The part number is N75001L This is an N-series cartridge, so it will fit all the North series respirators. (North support article 000001190.)
What is the part number for the Quantitative fit test adatper (QNFT) for the North RU6500, RU8800, RU8500, 5400, 7600, 5500, 7700, 7800 series respirators? And what is the part# for the P100 filter that will be needed also to perform a Quantitative fit test? All the North half mask and full face respirators can be fit tested. The part number for the Quanititive Fit Test (QNFT) Adapter for the North RU6500, 5400, 7600, 5500, 7700, 7800 and the HM500 series is part# 770021. The filter you will have to use to perform the fit test is part number 7580P100. (North support article 000005675.)