Description
The 3M 5203/5303 is a 5000 Series half facepiece disposable (maintenance-free) respirator assembly with the cartridges permanently attached; 3M names it "3M Half Facepiece Disposable Respirator Assembly 5203, Organic Vapor/Acid Gas, Medium 12 EA/Case". Ships in 1–2 business days; most orders arrive in 3–7 business days. 5000 Series: every version, filter and NIOSH approval on one page.
3M 5000 Series specifications
| Item | Manufacturer data |
|---|---|
| Series | 3M Half Facepiece Disposable Respirator Assembly 5000 Series (cartridges permanently attached) |
| Type | half facepiece, disposable (maintenance-free), bayonet filter retainer 501 on top |
| Sizes | 5201 (OV), 5203 (OV/AG), 52P71 (OV/P95) (Medium), 5301 (OV), 5303 (OV/AG), 53P71 (OV/P95) (Large) |
| Our part numbers | 5203 (7000051847 Medium, 12 EA/Case), 5303 (7000051848 Large) |
| Filters | built-in cartridges; 5N11/5P71 filters held by 501 retainer (3M 6000 Series half facepiece user instructions Table 7 row 501) |
| Use limits (3M) | 3M Reusable Respirator Catalog (NIOSH) "Assigned Protection Factor" table: Half facepiece respirators and full facepiece respirators that have been qualitatively fit tested, have an APF of 10. Full Facepieces respirators, when quantitatively fit tested, have an APF of 50. (OSHA 29 CFR 1910.134 as quoted by 3M) |
Source: 3M.com product listings (November 2026); 3M 6000 Series half facepiece user instructions; NIOSH CEL.
3M stock numbers on this page
| 3M stock number | 3M part number | 3M.com listing name | UPC | Previous stock number |
|---|---|---|---|---|
| 7000051847 | 5203 | 3M Half Facepiece Disposable Respirator Assembly 5203, Organic Vapor/Acid Gas, Medium 12 EA/Case | 50051138215731 | 70070314482 |
| 7000051848 | 5303 | 3M Half Facepiece Disposable Respirator Assembly 5303, Organic Vapor/Acid Gas, Large 12 EA/Case | 50051138215793 | 70070314540 |
Source: 3M.com product listings (November 2026); distributor product pages where 3M.com returned no card.
Filters for the 5000 Series
The 5N11 and 5P71 filters are held over the cartridges by the 3M 501 filter retainer (501).
| Part number | 3M name | NIOSH class |
|---|---|---|
| 5N11 | Particulate Filter 5N11, N95 | N95 |
| 5P71 | Particulate Filter 5P71, P95 | P95 |
Source: 3M 6000 Series half facepiece user instructions, Table 7.
NIOSH approvals naming the 5000 Series
The NIOSH Certified Equipment List carries 22 current 3M Company approvals whose product line names it: 4 chemical cartridge (TC-23C), 18 air-purifying particulate (TC-84A). The first 12:
| Approval | Product line | For protection against | Facepiece |
|---|---|---|---|
| TC-23C-0859 | 5000 Series | — | Half Mask |
| TC-23C-0865 | 5000 Series | — | Half Mask |
| TC-23C-0869 | 5000 Series | — | Half Mask |
| TC-23C-1318 | 5000 Series | — | Half Mask |
| TC-84A-0017 | 5X01 with 2091 filter | — | Half Mask |
| TC-84A-0019 | 5X03 with 2091 filter | — | Half Mask |
| TC-84A-0335 | 5X01 with 5N11 filter | — | Half Mask |
| TC-84A-0337 | 5X03 with 5N11 filter | — | Half Mask |
| TC-84A-1027 | 5X01 with 2096 filter or 2097 | — | Half Mask |
| TC-84A-1029 | 5X03 with 2096 filter or 2097 | — | Half Mask |
| TC-84A-1641 | 5X01 w/2071 filter | — | Half Mask |
| TC-84A-1643 | 5X03 w/2071 filter | — | Half Mask |
Source: NIOSH Certified Equipment List (November 2026), manufacturer 3M Company.
Assigned protection factor
| Respirator type (OSHA Table 1) | APF |
|---|---|
| Air-purifying half mask | 10 |
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)).
Catalog data
| Item | Manufacturer data |
|---|---|
| Material | Thermoplastic elastomer |
| Valve | Exhalation valve |
| Body Material | Thermoplastic Elastomer |
| Resistance | Organic Vapors/Acid Gases |
| Includes | Cartridges |
| Protected Area | Half Facepiece |
Source: Manufacturer published product data as carried in our catalog.
Organic vapor and acid gas half facepiece respirator, 3M model 5203, with permanently attached cartridges, for cleaning, stripping and chemical handling. This OV/AG disposable respirator covers chlorine, hydrogen chloride, sulfur dioxide, hydrogen sulfide and hydrogen fluoride.
- Model 5203, thermoplastic elastomer half facepiece
- Built-in organic vapor and acid gas cartridges
- Exhalation valve; low profile design for wider vision
- Compatible with NIOSH P95 and P100 filters using 501 retainers or 502 adapters
- NIOSH approved; includes resealable storage bag
Environmental and industrial cleaning contractors working around acids and solvents use it as a simple, maintenance-free mask. Available in Medium (7000051847) and Large (7000051848). Manufacturer item number: 7000051847. Sold individually.
3M 5000 Series questions
What is a 3M 5000 Series respirator? A half facepiece with the gas and vapor cartridges permanently attached, sold as a maintenance-free assembly; filters 5N11 (N95) and 5P71 (P95) fit over the cartridges with the 501 retainer (3M user instructions Table 7).
What sizes are there? 5201 (OV), 5203 (OV/AG), 52P71 (OV/P95) (Medium), 5301 (OV), 5303 (OV/AG), 53P71 (OV/P95) (Large).
Guides: half mask vs full facepiece · assigned protection factors · what OSHA requires for fit testing · cleaning and storing respirators · cartridge change schedules · P100 vs N95 vs R95 · all respirators by model and hazard.
