Manufacturer: KOKEN LTD.
Model: 18 HVT-Z

Supplies clean air into the mask through a hose

Supplied-Air Respiratory Protective Equipment

A supplied-air respirator (airline mask) is 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 assess the working environment and use a supplied-air respirator with the appropriate performance specifications.

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 rhythm, 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 mask with HAWC lip structure

The product applies the “HAWC lip※” technology with a flexible, wide, and specially curved face contact shape that creates a “suction cup effect” to enhance the seal. This ensures high airtightness, a wide field of vision, and a lightweight design.

※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 within a 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.

Suction or Blowing of Ambient Air

No air compressor required
Hose Mask

The system is divided into 2 main groups:

1. Electric Blower Type

• Features/Applications: Used for plant equipment maintenance, 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 reached within a 10m range.
• Style: Facepiece Type.
• Example: Model 1 H-C, etc.

DANGER

• Half-face masks, hoods, face shields, and lung power suction types (both full and half-face) MUST NOT be used in cases of short-term exposure to toxic substances that are immediately dangerous 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 exhalation valve operation, MUST NOT use facepiece-type supplied-air respirators.

Touden Airline Mask (Conductive)

Airline mask designed to prevent static electricity buildup

Industrial Safety and Health Regulations – Article 286-2: Anti-static products

In areas with a risk of explosion from steam, gases, or dust, it is necessary to implement measures to eliminate static electricity.

In environments where flammable substances are present, static electricity accumulated on the human body can discharge, igniting flammable substances and causing explosions or fires.
The Sakai Type Conductive Earth Type has been treated with conductive materials on rubber and plastic parts to prevent this electrostatic discharge. Static electricity accumulated on the human body is forcibly conducted to the ground through the mask, connection hose, filter unit, and pressure hose to be dissipated, allowing the product to be used more safely even in environments with flammable gases.

Sakai Type – Model 18 HVT-Z

<Patented>

Complies with JIS T 8153 : 2002 standard
Double coiled breathing tube type
Fixed filter type
Assigned Protection Factor: 1000

Components for safe operation

To prevent the buildup of static electricity on components, we have applied conductive treatment measures to forcibly release static electricity externally.

★ Mask: Conductive materials are used for the parts, and metal components are covered with rubber coating.
★ Flow Control Valve: Metal parts are covered with conductively treated rubber coating, preventing discharges from components or sparks generated by impact.

The image shows the version with 2 coiled tubes. A 1-tube version is also available. Additionally, a portable filter type is available.

Pressure Hose with Grounding Wire (sold separately)

At the end of the conductively treated hoses (available in 3 lengths: 10m, 20m, 30m), a grounding wire is attached to discharge static electricity to the ground.

Conductive Earth Type (Optional)

Hose reel with pressure hose (with grounding wire) specifically for the conductive earth type.
Neatly stores the hose. Includes conductive earth type pressure hose (20m or 30m).

Vision cover for HVT.
Protects the eyepiece of the full-face mask from paint dust, scratches, etc.

DANGER: Cannot be used in environments with flammable substances having a minimum ignition energy of less than 0.1mJ (millijoule), such as Hydrogen or Acetylene.

WARNING: The conductive earth type airline mask will completely lose its anti-static effectiveness if combined with parts from other manufacturers or other types of airline masks; therefore, always use the correct dedicated parts.

• For models No. 18 HVT-Y and Z, please use the dedicated pressure hose and hose reel designed specifically for the conductive earth type.
• The hose cannot be extended using intermediate couplers.
• Safety will be further enhanced when used in combination with anti-static products (such as anti-static clothing).