Manufacturer: KOKEN LTD.
Model: High Scope V

Supplies clean air into the mask through a hose

Supplied-Air Respiratory Protective Equipment

Supplied-air respirators (airline masks) are a system of respiratory protective equipment that supplies clean air to the wearer through a hose. There are types that use an air compressor or blower as an air source, and there are also types that rely on the wearer’s own lung suction power. By correctly selecting the appropriate type from various supplied-air respirators, the equipment can be used in:

• “Oxygen-deficient environments”
• “Environments generating high concentrations of toxic substances”
• “Environments generating highly toxic substances”

Please accurately understand the working environment and use a supplied-air respirator with the appropriate performance.

Pressure Demand Type Airline Mask

Possesses high protection performance

The pressure demand type maintains positive pressure inside the mask. Even if there is a gap at the face contact part, air will blow out from the inside of the mask to the outside, making it difficult for outside air to enter.

The pressure demand type airline mask is structured to supply the necessary amount of air according to the breathing rate, while maintaining positive pressure (pressure higher than the outside) inside the mask regardless of whether inhaling or exhaling. Therefore, in the worst-case scenario where a gap occurs between the mask and the face, air will blow out from the inside of the mask, helping to prevent the ingress of outside air and allowing for safer work.

Focus on safety Pressure Demand Type

Even if a gap appears in the face contact area, air will blow out forcefully from there, helping to prevent the ingress of oxygen-deficient air, toxic gases, and harmful dust.

● Air supplied by the pressure demand valve maintains a positive pressure state inside the mask thanks to a balance spring at the exhalation valve unit.

Examples of supplied-air respirator applications

A mask that easily and snugly fits the face

High Scope V type mask with HAWC lip structure

The product applies the “HAWC lip※” technology with a wide, flexible, and special curved face contact shape, helping to create a “suction cup effect” to enhance the seal. This provides high airtightness, a wide field of vision, and lightweight.

※Abbreviation for High Adaptable Wide Concave (The company’s proprietary face contact structure).

The HAWC lip face contact part can fit snugly to the face like a suction cup.

List of types

For Sakai type supplied-air respirators, please confirm the working environment, equipment, and number of users in advance to select the most suitable product for the workplace.

Compressed air supply (Using equipment such as an air compressor)

Airline Mask

The system is divided into 3 main groups:

1. Pressure Demand Type

• Features: Used for work in environments requiring high airtightness.
• Style: Facepiece Type.
• Example: Model 17HVG-ZW, etc.

2. Demand Type

Features: A type that supplies only the necessary amount of air to the wearer.

3. Constant Flow Type

Features: Used for continuous work over a long period, in a wide and fixed range.
Classification by style:

A. Facepiece Type

• Portable filter type: e.g., Model 12HV-Y, etc.
• Fixed filter type: e.g., Model 12D-Z, etc.

B. Hood Type

• Portable filter type: e.g., Model M5-Y, etc.
• Fixed filter type: e.g., Model S1-Z, etc.

C. Face Shield Type

• Fixed filter type: e.g., Model AFP-1.

Blowing or suctioning air from the atmosphere

No equipment such as an air compressor is required
Hose Mask

The system is divided into 2 main groups:

1. Electric Blower Type

• Features/Applications: Used for repairing plant equipment, working in manholes, pits, etc.
• Style: Facepiece Type.
• Example: Model SHV-105, etc.

2. Lung Power Suction Type

• Features/Applications: Used for tasks where a suitable breathing air source can be obtained within a 10m range.
• Style: Facepiece Type.
• Example: Model 1 H-C, etc.

DANGER

• Half-face masks, hood types, face shield types, and lung power suction types (both full-face and half-face) MUST NOT be used in cases of short-term exposure to hazardous substances that pose an immediate danger to life or health.
• Individuals with beards, sideburns, or bangs that interfere with the face seal, or with mustaches or chin hair that hinder the operation of the exhalation valve, MUST NOT use facepiece-type supplied-air respirators.

Equipment Related to Air Respirators

Vision Correction Glasses

Glasses for High Scope V model

These are specialized glasses that can be used with a feel very similar to regular glasses.

For the glasses used with the High Scope V model, thanks to the structure of the frame itself combined with the compatibility of the High Scope V mask, the distance between the eyes and the lenses is always kept constant.

We can deliver the product with the lenses already installed. (Please order with the prescription of your everyday glasses).