Sundström SR298 Gas Filter 138-01356 (Each)

The Sundström SR298 (138-01356) is a class AX gas filter for organic gases and vapours with a boiling point below +65°C, such as certain solvents, and it can also be used as an A2 organic gas filter. It fits the filter holder on Sundström half and full face masks, an SR510 particle filter can be snapped onto the front, and two identical AX filters can be used on the SR500 powered respirator with filter adaptors.

Important

Used as an AX filter, the SR298 is single-use only: discard it after 8 hours' use, or sooner depending on the contaminant concentration.

Breakthrough times

• As AX, isobutane at 2,500 ppm: 65-70 min
• As AX, dimethyl ether at 500 ppm: 70-75 min
• As A2, carbon tetrachloride at 5,000 ppm: 60-65 min

Specifications

• Material: polypropylene, no metal parts
• Size: 106 mm diameter, 48 mm thick
• Weight: 145 g
• Pressure drop: 25-30 Pa at 30 l/min (requirement under 100 Pa); 120-140 Pa at 95 l/min (requirement under 400 Pa)
• Shelf life: 5 years with the seal unbroken; expiry date printed on the filter

Storage

Keep it at room temperature in a clean, dry place. Once the seal is broken, store it in an air-tight container away from contaminants.