Sundström SR500 powered air-purifying respirator

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The Sundström PAPR (powered air-purifying respirator) has had a number of significant improvements made to its exterior design and performance.

The fan unit now delivers 240 L of air/min in its high-power mode, which means users can choose air flows of 175 or 240 L/min. The higher setting can be used to satisfy breathing requirements during heavier work and can also be applied for effective demisting of the visor, which is available in one of nine head-top models.

Another design feature is a new-look panel that is clear, easy to read and displays information such as flow rate, battery charge, spent particle filters, drop in air flow and other alerts that may require the attention of the user.

The product recently received an Ingress Protection rating of IP67 that certifies the assembled unit is completely dust-tight and also resistant to immersion in water to a depth of 1 m for 30 min.