English - Scott Flowhood 25 Serie Instrucciones Para El Uso

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Hood/helmet Flowhood 25
064284 Flowhood 25 (AC PU)
064289 Flowhood 25 (AC EPDM)
064287 Flowhood 25 AS (anti-static) (PC EPDM)
064299 Flowhood 25 CS (AC EPDM)
1. General
The hood Flowhood 25 is designed to be used together with a powered blower device and fi lters to
protect the respiratory system and face against hazardous gases and particles.
o The Flowhood 25 consists of a hood, a helmet, a visor and a breathing hose.
o Air is drawn through fi lters connected to the blower, by an electronically-controlled fan and led
through the breathing hose into the facepiece (airduct). Exhaled air exits through an exhala-
tion valve found in the lower part of the hood.
2. Limitations of use
2.1 The fi ltering device must not be used if the environment and contamination are unknown.
In case of doubt, isolating respirators (air supply) which function independently of the atmo-
sphere must be used.
2.2 The fi ltering device must not be used in restricted spaces (e.g. cisterns, tunnels) because
of the risk of oxygen defi ciency or presence of heavy oxygen-displacing gases (e.g. carbon
dioxide).
2.3 The fi ltering device may be used only if the oxygen content of the air is 18–23 vol.%.
2.4 Gas fi lters do not protect against particles. Similarly, particle fi lters do not provide protection
against gases or vapours. In case of doubt, use combined fi lters.
2.5 Normal fi ltering devices do not protect against certain gases such as CO (carbon monoxide),
CO (carbon dioxide) and N
2
2.6 Particle fi lters are allowed only for single use if they are applied against radioactive agents or
micro-organisms (virus, bacteria, fungi and spores).
2.7 It is likely that adequate protection cannot be guaranteed if the user's beard, hair, spectacle
frames or clothing intrude into the faceseal.
2.8 When a breathing protector is used in explosive atmospheres, please follow the instructions
given for such areas. The use of Flowhood 25 is permitted when connected to an intrinsically
safe (ex) blower device.
2.9 The blower must be running while using the respirator. If the blower turns off by accident,
the device ceases to function as a respirator, and carbon dioxide levels may instantly rise.
This is considered an abnormal situation.
2.10 At a very intense working pace, the pressure in the facepiece can change into negative pres-
sure at peak inhalation.
2.11 Recommended Conditions -10 °C...+50 °C, relative humidity (RH) under 75 %.
3. Start-up
● See Instructions for Use of the blower device to be used and of the fi lters. Only use Pro2000
fi lters.
● Check intactness of hood, helmet and breathing hose.
● Fix the breathing hose of the helmet tightly to the blower device. (Flowhood 25 A/S + hose
PF80: Fix the adapter to the helmet and the hose to the adapter.)
● Screw the fi lters tightly to the blower device.
● Don the blower unit according to its instructions.
● Switch on the blower device, then check adequate air fl ow (see Instructions for Use of the
blower unit).
● Don the helmet and adjust the harness/headband with the ratchet knob (handwheel) so that
the helmet fi ts comfortably over the forehead.
It may be necessary to adjust the crown strap to position the visor to the correct height.
● The visor can be moved closer to, or further away from, the face by sliding the visor carrier
arms through the visor mounting posts.
● Tighten the hood by adjusting the drawstring around the neck. Check that hair and clothing
are not trapped in the face seal.
● The breathing hose trails freely down the back and is not kinked or looped and not likely to
snag.
(nitrogen).
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