Koken BL-1180H Dust Respirator

Manufacturer: KOKEN LTD.
Model: BL-1180H

Usable for a wide variety of tasks!

Replaceable Dust Respirator
Sakai Model BL-1180H

The BL-1180H is the highest-performing dust respirator in our protective mask lineup, featuring an RL3 classification (particle collection efficiency over 99.9%).

This mask can be used for both indoor and outdoor construction site operations. Featuring replaceable filters, it fits the profile of a half-face dust mask. Additionally, the filter can be swapped with a chemical cartridge for use as a gas mask in toxic environments.


National Model Assay Certificate No. TM788	Alpha Ring Filter Model RD-8

RL3
Primary Applications

Asbestos removal operations (Level 1 tasks) ※1
Indium compound manufacturing and handling operations
Dioxin handling operations
Welding operations
Grinding operations

Note: Usage may be restricted depending on conditions such as workplace concentration levels.
For details, please refer to the “Examples of Applicable Work” below.

Examples of Applicable Work
Dust types and work descriptions

Work with risk of Dioxin exposure:
Level 1 tasks utilizing asbestos removal masks classified under “Category 3” or “Category 4” for asbestos abatement.
Indium compound manufacturing and handling:
Tasks where indium compound concentrations are below 3 µg/m³.
Metal-related operations:
Tasks generating metal fumes (including welding fumes) in areas where metal fumes are present.
Work generating dust from substances with concentrations below 0.1 mg/m³:
Tasks in areas where dust is generated from substances at concentrations lower than 0.1 mg/m³.

※1: When removing Level 1 plasterboards using cutting methods, powered air-purifying respirators (PAPR) must be used.
※2: Welding operations requiring a protection factor below 10.

Replace Filter with a Chemical Cartridge for Gas Mask Usage

Painting, washing, and degreasing operations, as well as solvent handling tasks.

By exchanging the filter for an absorbent cartridge, it can be used as a G-7 Gas Mask.
National Model Assay Certificate No. TN382.


When KGC-10C Cartridge is attached	KGC-10C-03 Organic Vapor Cartridge Select the appropriate cartridge based on the specific gases and vapors in the environment. See the back page for “Compatible Cartridge Types”.

Respirator Features

For the 1180H model equipped with the Fit Checker, simply pull the lever to perform an immediate Fit Check.
Pull up the Fit Checker and instantly test for leaks!

Even with a high-efficiency filter, wearing the mask incorrectly negates its protective value. With the integrated Fit Checker model, a simple lever operation is all it takes to perform a user seal check, making fit verification fast and easy.

Facepiece contact area designed for optimal fit

Skin-friendly silicone material
The silicone facepiece reduces skin irritation and is less likely to cause dryness. This material remains highly flexible, accommodating facial movements to provide a stable and comfortable fit.

Freeposition Underchin
A specialized design providing an optimal facial contact shape.
By adjusting the nose section first and then securing the chin area, the mask accommodates varying face sizes, preventing leaks in vulnerable areas such as the bridge of the nose.

Respirator Performance Specifications

Dust Respirator
Model Name (Product Code)		Sakai Model 1180H
National Assay Certificate		No. TM788
Filter Material		Alpha Ring Filter Model RD-8
Classification		Replaceable Type ・ Direct Connection
Respirator Type		Half-face
Performance (Classification)		RL3
Assigned Protection Factor		10
Internal Standard	Particle Collection Efficiency	Above 99.9%
	Inhalation Resistance	Below 88Pa (including filter)
	Exhalation Resistance	Below 45Pa
	CO2 Concentration Increase	Below 0.5%
	Weight	Below 134g (including filter)
Inhalation Resistance Increase (Average)		89Pa

The figures above indicate the performance when using the standard product (Size M mask, RB type harness) without any accessories/options attached.
Masks are available in two sizes: Size M (Standard) and Size S.

Compatible Filters

Filter Name	Model Name When Attached	Dust Protection (Classification)
Alpha Ring Filter Model RD-8 (Included)	Sakai Model 1180H No. TM788	RL3
Alpha Ring Filter Model LAS-51 (Sold separately)	Sakai Model 1180-05 No. TM538	RL2

The 1180H model can be used as the 1180-05 model dust respirator by replacing the filter with the LAS-51 Alpha Ring Filter. Please check the instruction manual for applicable operations.

Compatible Chemical Cartridges (Sold Separately)

Target Gas Type	Cartridge Name	Dust Protection (Classification)
For Halogen Gases	KGC-10A-03 For Halogen Gases	—–
For Halogen Gases	KGC-10A-03 For Halogen Gases When Mighty Micron Filter is attached	Yes (S1) ^※1※3
For Acid Gases	KGC-10B-03 For Acid Gases	—–
For Acid Gases	KGC-10B-03 For Acid Gases When Mighty Micron Filter is attached	Yes ^※1※2※3
For Organic Vapors	KGC-10C-03 For Organic Vapors	—–
	KGC-10C-03 For Organic Vapors When Mighty Micron Filter is attached	Yes (S1) ^※1※3
	Model KGC-10 L For Organic Vapors (C)	—–
	Model KGC-10 L For Organic Vapors (C) When Mighty Micron Filter is attached	Yes (S1) ^※1※3
	KGC-10MC-04 For Organic Vapors ・ Dust	Yes (S1) ^※1※3
	Model KGC-10 LMC-02 For Organic Vapors ・ Dust	Yes (S1) ^※1※3
For Ethylene Oxide	KGC-10EOG (Pack of 5) For Ethylene Oxide	—–
For Formaldehyde	KGC-10FA-03 (Pack of 5) For Formaldehyde	—–
For Formaldehyde ・ Organic Vapors	Model KGC-10 L FA For Formaldehyde ・ Organic Vapors	—–
For Formaldehyde ・ Organic Vapors	Model KGC-10 L FA For Formaldehyde ・ Organic Vapors When Mighty Micron Filter is attached	Yes (S1) ^※1※3

※1 Attached to the chemical cartridge for use against dust mixed in toxic gases or vapors.
※2 Represents a testing standard equivalent to “Class S1” of the national assay regulations.
※3 The Assigned Protection Factor against dust, etc., is “4”.