{"product_id":"allegro-9935-blw-ez-air-papr-blower-assembly","title":"Allegro 9935-BLW EZ Air PAPR Blower Assembly","description":"\u003cdiv style=\"background:#1a1a1a;color:#e0e0e0;font-family:Arial,sans-serif;padding:24px;max-width:900px;\"\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Allegro 9935-BLW EZ Air PAPR Blower Assembly\",\n  \"sku\": \"9935-BLW\",\n  \"gtin13\": \"0741851993539\",\n  \"brand\": { \"@type\": \"Brand\", \"name\": \"Allegro Industries\" },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"900.00\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/wcsafety.com\/products\/allegro-9935-blw-ez-air-papr-blower-assembly\"\n  }\n}\n\u003c\/script\u003e\n\n\u003cdiv style=\"background:#2a2520;border-left:4px solid #ff9800;padding:18px 22px;margin:18px 0;color:#f5e6d3;font-family:Arial,sans-serif;\"\u003e\n\u003cstrong style=\"color:#ffb74d;\"\u003eDisclosures \u0026amp; editorial standards\u003c\/strong\u003e\u003cbr\u003eWC Safety participates in the Amazon Services LLC Associates Program. Outbound Amazon links are affiliate links. We accept no manufacturer payment, sponsorship, or product samples. \u003cstrong style=\"color:#ffffff;\"\u003eThis content is not medical, legal, or regulatory advice.\u003c\/strong\u003e Safety equipment selection is governed by applicable OSHA standards and your facility's safety program.\n\u003c\/div\u003e\n\n\u003ch2 style=\"color:#ff9800;font-size:1.5rem;margin-top:0;\"\u003eAllegro 9935-BLW EZ Air PAPR Blower Assembly — Replacement Motorized Blower Unit\u003c\/h2\u003e\n\n\u003cp\u003eThe Allegro 9935-BLW is the motorized blower assembly for the Allegro EZ Air powered air-purifying respirator (PAPR) system. It delivers a continuous flow of NIOSH-filtered positive-pressure air to the supplied hood or helmet, eliminating the need for fit testing and negative-pressure breathing effort. The 9935-BLW is the core blower unit of the EZ Air system — it attaches to compatible Allegro PAPR hoods and filter cartridges to form a complete respiratory protection assembly. As a replacement blower component, it is ordered separately from the hood, hose, and filter. UPC: 741851993539. Shop the full \u003ca href=\"\/collections\/powered-air-purifying-respirators\" style=\"color:#4fc3f7;\"\u003epowered air purifying respirators collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eVendor: \u003cstrong\u003eAllegro Industries\u003c\/strong\u003e | SKU: \u003cstrong\u003e9935-BLW\u003c\/strong\u003e | UPC: \u003cstrong\u003e741851993539\u003c\/strong\u003e | \u003ca href=\"https:\/\/www.amazon.com\/dp\/B077GJCX9S?tag=wcsafety04-20\" style=\"color:#4fc3f7;\" rel=\"nofollow\" target=\"_blank\"\u003eView on Amazon\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3 style=\"color:#ff9800;\"\u003e9935-BLW Blower Assembly Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin-bottom:1.2rem;\"\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"padding:8px 12px;border:1px solid #333;text-align:left;color:#ff9800;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding:8px 12px;border:1px solid #333;text-align:left;color:#ff9800;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eComponent Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eReplacement PAPR blower assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eSystem\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eAllegro EZ Air PAPR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eApproval\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eNIOSH-approved (used with compatible NIOSH-approved filters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003ePressure Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003ePositive pressure delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eFit Test Required\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eNo (positive pressure PAPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eFacial Hair Compatible\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eYes (hood-based system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eUPC\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003e741851993539\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#ff9800;\"\u003eHalf-Mask APR vs. Allegro EZ Air PAPR: Key Differences\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin-bottom:1.2rem;\"\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"padding:8px 12px;border:1px solid #333;text-align:left;color:#ff9800;\"\u003eFactor\u003c\/th\u003e\n\u003cth style=\"padding:8px 12px;border:1px solid #333;text-align:left;color:#ff9800;\"\u003eHalf-Mask APR\u003c\/th\u003e\n\u003cth style=\"padding:8px 12px;border:1px solid #333;text-align:left;color:#ff9800;\"\u003eAllegro EZ Air PAPR\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eFit Testing Required\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eYes (annual)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eFacial Hair\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eNot permitted at seal\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003ePermitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eBreathing Resistance\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eNegative pressure (user draws air through filter)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003ePositive pressure (blower delivers air)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eAssigned Protection Factor\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003e25 (LF hood) or 1000 (TH3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eComfort for Extended Wear\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eModerate (face pressure, breathing effort)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #333;\"\u003eHigh (no face contact, cool airflow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"color:#ff9800;\"\u003eFrequently Asked Questions — Allegro 9935-BLW\u003c\/h2\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eWhat is the 9935-BLW — is it a complete PAPR system?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003eThe 9935-BLW is the blower motor assembly only — it is not a complete PAPR system. The full Allegro EZ Air PAPR system requires the blower unit (9935-BLW), a compatible PAPR hood or helmet, a supply hose, and NIOSH-approved filter cartridges. The 9935-BLW is sold as a replacement blower for existing EZ Air systems or as the blower component when building a PAPR assembly from individual parts.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eDoes the Allegro EZ Air PAPR require fit testing?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003eNo. Positive-pressure PAPRs do not require respirator fit testing under OSHA 29 CFR 1910.134. Because the blower maintains positive pressure inside the hood, air leaks outward rather than inward — contaminated air cannot enter through minor gaps the way it can with negative-pressure tight-fitting respirators. This makes the EZ Air system appropriate for workers who cannot achieve a reliable half-mask seal due to facial hair, facial features, or medical conditions.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eWhat is the APF for the Allegro EZ Air PAPR?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003eThe Assigned Protection Factor (APF) for the Allegro EZ Air PAPR depends on the hood or helmet used. Loose-fitting hood PAPRs (LF classification) have an APF of 25. TH3-classified tight-fitting or helmeted units have an APF of 1000. OSHA Table 1 in 29 CFR 1910.134 Appendix A defines APFs for each respirator class. For most industrial particulate applications, the LF PAPR (APF 25) provides substantially more protection than a half-mask APR (APF 10) without requiring fit testing.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eWhat filters are compatible with the 9935-BLW blower?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003eThe 9935-BLW blower is designed to work with Allegro EZ Air PAPR filter cartridges — both particulate and combination organic vapor\/P100 filters are available in the EZ Air filter line. Always use NIOSH-approved filters with any PAPR assembly. Using non-approved or incompatible filters voids the NIOSH approval of the assembly and the OSHA compliance status of the respiratory protection program.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eCan the Allegro EZ Air PAPR be used for welding?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003eThe Allegro EZ Air PAPR system can be used for welding fume protection when equipped with the appropriate NIOSH-approved particulate filter (P100 or HEPA). For welding operations with a PAPR, you also need a compatible welding helmet or shield that integrates with the PAPR hood to provide both arc flash and UV protection. Allegro offers PAPR-compatible welding accessories. For a fully integrated welding PAPR helmet, see the \u003ca href=\"\/collections\/powered-air-purifying-respirators\" style=\"color:#4fc3f7;\"\u003ePAPR welding systems\u003c\/a\u003e in the collection.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eWhat OSHA standards govern PAPR use?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003ePAPR use is governed by OSHA 29 CFR 1910.134 (Respiratory Protection) in general industry. Key requirements include: a written respiratory protection program, a medical evaluation before use, training, and proper maintenance and storage procedures. PAPRs are exempt from fit testing (29 CFR 1910.134(f)(1)(ii)(C)) but are not exempt from the medical evaluation or program requirements. Employers must also ensure the PAPR selected provides an APF adequate for the contaminant concentration present.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eHow long does the blower battery last on the 9935-BLW?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003eRun time depends on airflow speed and battery charge. Allegro EZ Air systems typically provide several hours of continuous operation at standard airflow rates. For shift-length wear, users should confirm battery run time at their operating speed and keep spare batteries or a charging solution available. The battery is part of the complete EZ Air system — refer to Allegro Industries product documentation for specific run-time data for the 9935-BLW configuration.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:10px;\"\u003e\u003csummary style=\"background:#2a2a2a;padding:10px 14px;cursor:pointer;color:#ff9800;border-radius:4px;\"\u003eIs the 9935-BLW the same as the Allegro 9935 complete kit?\u003c\/summary\u003e\n\u003cdiv style=\"background:#222;padding:12px 16px;border:1px solid #333;\"\u003eNo. The 9935-BLW is the blower assembly component only. The Allegro 9935 series complete PAPR kits include the blower, hood, hose, and filter(s) as a packaged system. The \"-BLW\" suffix designates the blower-only variant. If you need a replacement blower for an existing EZ Air system, the 9935-BLW is the correct SKU. If you are building a new PAPR program from scratch, the complete kit may provide better value and ensure component compatibility.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdiv style=\"background:#2a2a2a;border-left:4px solid #ff9800;padding:16px 20px;margin-top:24px;border-radius:4px;\"\u003e\n\u003cstrong style=\"color:#ff9800;\"\u003eRelated Respiratory Protection\u003c\/strong\u003e\u003cbr\u003e\n\u003ca href=\"\/collections\/powered-air-purifying-respirators\" style=\"color:#4fc3f7;\"\u003eAll PAPRs\u003c\/a\u003e  | \n\u003ca href=\"\/collections\/half-mask-respirators\" style=\"color:#4fc3f7;\"\u003eHalf-Mask Respirators\u003c\/a\u003e  | \n\u003ca href=\"\/collections\/respirator-filters-and-cartridges\" style=\"color:#4fc3f7;\"\u003eCartridges \u0026amp; Filters\u003c\/a\u003e  | \n\u003ca href=\"\/collections\/disposable-respirators\" style=\"color:#4fc3f7;\"\u003eDisposable Respirators\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"Allegro Industries","offers":[{"title":"Default Title","offer_id":44151573184600,"sku":"9935-BLW","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/416eyW0jpLL._SL500.jpg?v=1779978845","url":"https:\/\/wcsafety.com\/products\/allegro-9935-blw-ez-air-papr-blower-assembly","provider":"WC Safety","version":"1.0","type":"link"}