The RY-SAR-09 is a two-person electric long-tube respirator built on a stainless steel blower housing with louvred ventilation on the side face and a detachable IEC power cord plugged into a socket on the front. The front face carries a red and a green push button and a rocker switch, with two hose ports on the lower edge feeding two coiled corrugated hoses, two full-face masks with yellow frames and two orange and black striped waist straps. The kit is supplied with the manual, an inspection report and the certificate card. It is the general industrial version of the two-person set, for works where a mains supply is available and the blower can stand in a normal, non-classified area.
The louvres are the most important thing to understand about this unit, because they tell you both why it is built this way and where it may not be used.
Why they are there. A blower motor in a closed stainless box makes heat, and heat shortens the life of the motor and the wiring. Cutting louvres into the side face lets air move through the housing and keeps the inside cool without adding a fan for the enclosure itself. On a general industrial set that is a sensible, cheap, effective solution.
What they rule out. A louvred housing is ventilated by definition, so it cannot be a flameproof enclosure: an internal ignition would vent straight into the surrounding atmosphere. That means this unit must not be assumed to be explosion-proof, must not be placed inside a classified zone on the strength of "it looks like the other one", and must not be substituted for an Ex-rated set in a hazardous area. The housings in this range look similar at a glance; the louvres are the difference, and the rating has to be confirmed in writing against the zone rather than read off a photograph.
The detachable cord is a benefit and a risk. An IEC inlet means the cord can be replaced in a minute without opening the box, and the same blower can be used on a different supply by changing the lead. It also means the lead can be lost, borrowed or substituted with one of the wrong rating. Keep a spare lead with the set and treat a missing or damaged lead as a stoppage, not as a reason to borrow one from a kettle.
No display, so the checks move elsewhere. There is no battery gauge to read here, because the unit runs from the mains; the checks that matter are the supply itself — that it is live, protected, and not the same circuit as the equipment being worked on. A blower that stops because someone isolated the wrong breaker is the mains equivalent of a flat battery.
And the constants: the blower moves ambient air rather than making it, so the intake must stand in clean air and upwind; and neither wearer has an escape cylinder, so an interruption means both leave.
Stainless steel housing with side ventilation louvres, keeping the motor and wiring cool without an enclosure fan.
IEC inlet with detachable power cord, so a damaged lead can be replaced without opening the housing.
Red and green push buttons and a rocker switch on the front face.
Two hose ports on the lower edge feeding two wearers from one blower.
Two coiled corrugated hoses with quick-fit metal couplings at both ends.
Two full-face masks with yellow frames, wide visors and exhalation valves; sizes per wearer.
Two orange and black striped waist straps with rings, carrying hose weight off the facepieces and staying visible in low light.
Carry handle on top, so one person can move the unit between work points.
Supplied with manual, inspection report and certificate card; no cylinder, fuel or compressed air line required.
| Model | RY-SAR-09 |
| Type | Mains-powered long-tube supplied-air respirator, two persons |
| Housing | Stainless steel enclosure with side ventilation louvres and carry handle |
| Electrical | IEC inlet with detachable power cord, red and green push buttons, rocker switch; supply voltage confirmed on order |
| Hazardous area suitability | Ventilated housing, not a flameproof enclosure; the rating must be confirmed in writing and must not be assumed from appearance |
| Breathing hoses | Two coiled corrugated hoses with quick-fit metal couplings; lengths to order |
| Facepieces | Two full-face masks with wide visors, exhalation valves and yellow frames; sizes per wearer |
| Hose support | Two orange and black striped waist straps with rings |
| Air source | Ambient air drawn at the blower intake; intake must stand in clean air upwind of the work |
| Escape supply | None for either wearer; loss of power removes protection, so an escape route and standby person are required |
| Air distribution | Two hose ports on the housing, one per wearer; both must be used or the spare port plugged |
| Documents and packing | Manual, inspection report and certificate card supplied; complete two-person kit packed for transport |
Site the blower in clean air, upwind of the work, on a surface where it will not be knocked over and where the louvres are not blocked by a wall or a bag.
Confirm the rating of the unit suits the place it will stand; a ventilated housing is not flameproof and must not be taken into a classified area.
Connect the IEC lead to a protected supply, route it clear of traffic and water, and check the cord and plug for damage before energising.
Run the two hoses on separate supported routes with no shared crossing, and plug the unused port if the unit is run for one wearer.
Fit each mask, fit check both, and confirm airflow at each mask before either wearer enters.
Appoint a standby person at the blower who knows which breaker feeds it, and brief the rule that both wearers leave if the blower stops.
Before each use: inspect the IEC lead and plug, confirm the supply is live and protected, and check that the blower runs and delivers at both masks.
During use: keep the lead out of walkways and away from water, and keep the louvres unobstructed; a blocked intake or a blocked louvre both overheat the unit.
Isolation discipline: identify and tag the breaker feeding the blower so that nobody isolates it during the work; this is the mains equivalent of guarding the battery.
After use: clean the housing, check the louvres for dust and process debris, and coil the hoses without sharp bends.
Annually: check the earth continuity, inspect the inlet and cord gland, replace mask gaskets and exhalation valves, and review the rating against the area where the unit is actually used.
This is a supplied-air respirator: it does not generate oxygen and must not be used in an oxygen-deficient or immediately dangerous to life or health atmosphere unless the intake air is guaranteed clean and the assessment says so in writing, and it must never replace self-contained apparatus where an escape supply is required. Each mask must be fit tested to its own wearer and must not be shared without cleaning and disinfecting. The ventilated housing is not a flameproof enclosure, so the unit must not be installed in a classified area unless its rating has been confirmed in writing for that zone; the certificate card supplied with the set states what the unit is, not what a site hopes it is. Loss of mains power is a loss of protection for both wearers and must be written into the site's procedure as an evacuation trigger. Local rules on confined-space entry, permit-to-work and standby arrangements apply on top of the equipment.
Two-man work in non-classified industrial areas: tank and pit entry with the blower standing in clean air outside, spray painting and coating in general workshops, grinding and dust work where a full-face mask with a clean air supply is wanted, and any site with a reliable mains supply where a cable can be routed safely.
State the model RY-SAR-09, the length of each hose, the supply voltage and plug type for the IEC lead, the mask size for each wearer, and the area where the blower will stand so the rating can be confirmed in writing. Confirm whether a spare lead, spare masks or a hose reel are to be included, and state the language required for the manual. If the blower has to stand in a classified area, specify the flameproof version instead — this ventilated housing is not a substitute for it.