Suitable for a wide variety of work conditions

The Sundström SR500 powered air purifying respirator (PAPR) is an alternative to negative-pressure filter respirators in situations where these are recommended. The fan-assisted air flow may be of benefit during extended periods of work in warm conditions. The fan can be used with Sundström hoods, face shields or full face masks.

• Two speeds (175 and 240 l/min)
• Lithium-ion battery
• Standard Battery (STD) 
• Battery recharge time: approximately 1.5 h (STD)
• Supplied with 2 filters/filter combinations
• Operating time up to 13 h
• Single control for on, off and operating status
• Automatic air flow control
• Can be used with hood, shield or full face mask

Visual display:

• Normal operation
• Boost fan operation
• Dip in air flow/clogged particle filters
• Battery low
• Air flow obstruction

Air flow rate:

• 175 l/min (normal operation)
• 225 l/min (boost operation)

Battery: 

• 14.8 V, 2.2 Ah, lithium-ion (STD)

Temperature range 

• Operation: –10°C to +55°C at <90% RH
• Storage: –20°C to +55°C at <90% RH

Low flow warning: <175 l/min

Filter thread: Rd 44 x 1/7"

IP rating:

• IP67 (Ingress Protection)
• Particles: 6 — protected against all dust — 'dust-tight'
• Liquids: 7 — protected against immersion for 30 minutes in water to a depth of 1 metre)