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The air pressure inside the mask or hood is higher than the surrounding air, which means that outside air cannot leak into the head piece. Components The SR500ex PAPR is made up of three main parts: • The fan unit with filters, motor, fan, and a waist belt.
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Other types of safety equipment that may be required *) The breathing rate is important, because the SR500ex delivers air at a maximum flow rate of 175 litres per minute (normal mode) or 225 l/min (boost mode). If you are using a...
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You must not fit one type of filter to one port, and another type of filter to the other. When should the SR500ex respirator NOT be used? • When the fan motor is turned off for any reason •...
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Before using the respirator: • Make sure the SR500ex PAPR and all its parts are clean, intact, and correctly assembled • Make sure the appropriate filters are fitted to the fan unit • If gas filters are used, particle filters...
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