RY-SAR-10 Self-Priming Long Tube Respirator with Full-Face Mask and 5 m to 20 m Hose Options

Product Overview

The RY-SAR-10 is a self-priming long-tube respirator: there is no blower and no power supply. A full-face mask with a yellow frame is connected by a short corrugated breathing hose to a long corrugated air hose, whose far end carries an intake fitting with a perforated strainer that is placed in clean air outside the work area. The long hose is carried on an orange and black striped waist belt so its weight does not hang on the facepiece. The set is offered with 5 m, 10 m, 15 m or 20 m of hose, and each length is supplied as a complete kit: mask, short hose, long hose, intake end and belt.

What Self-Priming Means — and Why Hose Length Is a Resistance Number

Self-priming sounds like a convenience. It is really a trade: you remove the blower and you hand the work of moving air to the wearer's lungs. Everything that matters about this set follows from that single fact.

Every metre adds resistance. Air has to be drawn down the whole length of the hose on every breath, and the resistance rises with length and falls with diameter. That is why the 5 m, 10 m, 15 m and 20 m options are not simply a choice of how far you want to walk: they are a ladder of breathing effort. A wearer who is comfortable on 5 m may be labouring on 20 m, and the difference shows up as rapid shallow breathing, a feeling of suffocation and early fatigue — which in a hot suit is exactly when mistakes happen.

The mask is under negative pressure. Because the air is pulled rather than pushed, the pressure inside the mask is below ambient while inhaling. If the mask seal leaks, contaminated air is drawn in through the leak. A blower-fed set holds the mask at positive pressure and leaks outward, which is why positive-pressure sets are preferred wherever the atmosphere is genuinely hazardous. This set relies entirely on a good seal, correctly fitted, every time.

It is not for oxygen-deficient or immediately dangerous atmospheres. There is no independent air supply and no escape cylinder. If the far end of the hose ends up in the contaminant, or is buried, kinked or dropped into a pit, the wearer breathes whatever is at that end. The intake end is the whole system's air supply, and it is the part most often treated casually.

20 m needs a fit and trained wearer. Long hoses are specified in standards with limits precisely because of resistance. Where a job genuinely needs 15 m or 20 m, the honest questions are whether a blower-fed set would be better, and whether the wearer is medically fit and trained for that resistance — not simply whether the hose reaches.

Key Features

• No blower, no battery and no mains supply: nothing to fail electrically and nothing to charge.

• Full-face mask with a wide visor, yellow frame and exhalation valve.

• Short corrugated breathing hose between mask and long hose, with metal quick-fit couplings.

• Long corrugated hose in 5 m, 10 m, 15 m or 20 m, coiled for transport.

• Intake end fitting with a perforated strainer, keeping debris and insects out of the air path.

• Orange and black striped waist belt with rings, carrying the hose weight off the facepiece and staying visible in low light.

• Everything mechanical and nothing electrical, so the kit can be stored for long periods and used where power is not available at all.

• Few parts to fail: mask, two hoses and the belt, all replaceable individually.

• Packs small enough to be carried by the wearer and laid out at the entry point.

Technical Specifications

Deployment and Use

1. Choose the shortest hose that will do the job; treat every extra metre as breathing effort added to the wearer's shift.

2. Place the intake end in clean air, upwind of the work, and secure it so it cannot fall, be buried or be dragged into the contaminated area.

3. Lay the long hose on a route free of traffic, sharp edges, doors and standing water, with no sharp bends; support it or run it overhead where it crosses a walkway.

4. Fit the mask, carry out a fit check, and confirm the wearer can breathe without strain at the full hose length before entering.

5. Attach the waist belt and adjust it so the hose is carried on the hips rather than pulled by the facepiece.

6. Brief the exit signal and appoint someone outside who watches the intake end and the hose, and who can free a snagged hose immediately.

Care of the Hose and Intake End

Before each use: run a hand along the full hose looking for cracks, flattening, cuts and damaged couplings; check the strainer is clean and undamaged; check the mask visor, gasket and exhalation valve.

After each use: clean and disinfect the mask, wipe the hoses, coil them without sharp bends, and store the intake end capped so debris cannot enter.

Monthly: inspect the hose ends and couplings for cracking, check the belt webbing and rings, and confirm the strainer is clear.

Annually: replace the mask gasket and exhalation valve, pressure-check the hose for leaks, and review whether the hose lengths in service still match the jobs they are used for.

Standards and Compliance

A self-priming long-tube respirator is a negative-pressure device: it does not generate oxygen, it provides no positive pressure inside the mask, and it must not be used in oxygen-deficient or immediately dangerous to life or health atmospheres, nor where an escape air supply is required. Protection depends on two things that are easy to get wrong — a correctly fitted mask with a good seal, and an intake end that is genuinely in clean air. Standards limit hose length for self-priming sets and require the wearer to be fit and trained for the resistance of the length in use; the shortest length that does the job is the correct length. Each mask must be fit tested to its own wearer and must not be shared without cleaning and disinfecting. Local rules on confined-space entry, permit-to-work and standby arrangements apply on top of the equipment.

Applications

Work in tanks, pits, sewers, silos and vessels where the outside air is clean and the entry point is within hose reach; painting, solvent and dust work in open workshops; and sites with no power available where a blower-fed set cannot be supported. It is not the right choice where the atmosphere outside the work area is also suspect.

Ordering

State the model RY-SAR-10, the hose length required (5, 10, 15 or 20 m), the mask size, and whether additional masks, a spare hose or a hose reel are to be included. Confirm the atmosphere at the intake position and the distance from it to the furthest working point, since that distance sets the minimum hose length and the resistance the wearer will breathe against. Where the job needs long hoses and a heavy workload, ask about a blower-fed set as the alternative — this respirator transfers that work to the wearer's lungs by design.