supply of auto darkening welding face shield with respiratory system along with spares as per specification at annexure-a, 1. auto darkening welding face shield with powered air purifying respiratory system-05 nos. 2. pre- filter- 125 nos.. 3. particle filter-10 nos. 4. outer protection plate-50 nos. 5. inner protection plate- 25 nos. 6. n 95 welding respirator 05 nos. 7. shade 5 ir safety goggles 05 nos. [ s. n. 1 to 7 make one set only ] . make: ador / esab / 3m / kemppi / messer, procurement from any oem or oems authorized distributor only, tenderer to submit oem tender specific authorization while submitting e-bid. [ warranty period: 12 months after the date of delivery ]