HSE Textile Dust

Controlling Cotton, Wool and Dyestuff Dust in the Textile Industry

LEVCentral Expert Commentary

Textile dust has long been recognised as a significant occupational health hazard. Depending on the material being processed, workers may be exposed to cotton dust, wool process dust, dyestuff dust and other airborne fibres, each presenting different health risks and requiring appropriate control measures.

HSE’s Textile Dust guidance provides a comprehensive overview of these hazards and explains how employers can reduce worker exposure through good process design, effective Local Exhaust Ventilation (LEV), suitable housekeeping and competent management. Although written specifically for the textile industry, many of the engineering principles apply equally to any process involving fibrous dusts or lightweight airborne particulates.

The guidance explains that exposure to cotton dust has historically been associated with byssinosis (“brown lung disease”), while prolonged exposure to wool process dust has been linked with chronic bronchitis, breathlessness, rhinitis and eye irritation. HSE also highlights the hazards associated with dyestuff dusts, particularly powdered dyes that may act as respiratory sensitisers or skin sensitisers.

For LEV professionals, one of the most valuable aspects of this guidance is its emphasis on engineering controls. HSE recommends enclosing machinery wherever practicable and using LEV to capture dust escaping from necessary process openings. Good general ventilation is also important for reducing background dust concentrations, while careful housekeeping prevents settled dust from becoming airborne again.

The publication also contains practical advice that echoes many other HSE guidance documents:

Avoid dry sweeping.
Never use compressed air for cleaning.
Use industrial vacuum cleaners (typically Type H) or central vacuum systems.
Design dust collection systems carefully, particularly where filtered air is returned to the workplace.

View HSE Guidance

View Original HSE Guidance

Key Learning Points

The guidance explains:

Health risks associated with:
- Cotton dust.
- Wool process dust.
- Dyestuff dust.
The causes of byssinosis and other respiratory diseases associated with textile processing.
Workplace Exposure Limits (WELs) for cotton and wool process dust.
Reducing dust generation through improved process design.
Enclosing machinery wherever reasonably practicable.
Using Local Exhaust Ventilation (LEV) to capture dust escaping from process openings.
Providing effective general ventilation to reduce background dust levels.
Reducing worker exposure through automation and process segregation where feasible.
Using industrial vacuum systems instead of brushes, brooms or compressed air for cleaning.
Returning filtered air only where it can be demonstrated that worker exposure will not be increased, with additional filtration where necessary.

Source Document Information

Organisation: Health and Safety Executive (HSE)

Document: Textile Dust

Document Type: Industry Guidance

Primary Topics: Cotton Dust, Wool Process Dust, Dyestuff Dust, LEV, Byssinosis, Occupational Hygiene

Audience: Textile Manufacturers, Mill Managers, LEV Designers, Occupational Hygienists, Health & Safety Professionals, Maintenance Engineers and Duty Holders.

LEVCentral Perspective

This guidance illustrates an important principle that extends well beyond the textile industry:

Fibrous dust behaves differently from granular dust.

Cotton and wool fibres remain airborne for prolonged periods, readily accumulate on machinery and building structures, and are easily disturbed during cleaning. Consequently, dust control requires more than simply installing extraction. Good enclosure, effective LEV, careful housekeeping and properly designed dust collection systems must all work together to maintain low exposure levels.

The guidance is also noteworthy for its discussion of returned air systems. Returning filtered air to the workplace can deliver significant energy savings, particularly in large textile mills, but only when filtration performance is sufficiently high and the system is designed so that worker exposure is not increased. This is an area where competent engineering design and ongoing performance verification are particularly important.

Further Resources

Recommended Learning

Thought Leadership

The textile industry was one of the first to demonstrate the long-term health consequences of occupational dust exposure, and many of the engineering solutions developed for textile mills continue to influence modern LEV design. Enclosing dusty machinery, capturing contaminants at source, maintaining good general ventilation and preventing settled dust from becoming airborne remain fundamental principles across many industries.

For LEV professionals, the guidance also provides a useful reminder that successful dust control extends beyond extraction hoods and ductwork. Material selection, process design, housekeeping, air cleaning and worker behaviour all influence exposure levels.

Effective control is therefore achieved through an integrated engineering approach rather than reliance on any single control measure.