High Noise Levels Sign

High Noise Levels Sign – ISO 7010 Warning Symbol HS0034

This High Noise Levels sign warns crew and contractors that sustained sound levels in the marked area are high enough to require hearing protection during any extended time spent there. This sign combines the standard ear-and-sound-wave pictogram with a bold “DANGER – High noise levels” text panel beneath it, pairing the instant visual cue with an explicit written instruction.

As SKU HS0034 in the Hazard Signs range, it is built for continuous marine exposure and suits engine rooms, compressor spaces, generator flats and any compartment where constant machinery noise exceeds safe exposure limits.

The upper pictogram shows an ear with sound waves radiating toward it, while the lower panel spells out “DANGER” in bold capitals followed by “High noise levels” in smaller text, a combined format useful where an explicit English instruction reinforces the need for hearing protection beyond what the symbol alone conveys.

Unlike a sudden burst of noise, a high noise level hazard is constant and can cause gradual, cumulative hearing damage that is easy to underestimate during a short visit to the space. The photoluminescent base keeps the high noise levels warning visible for a period after lighting fails, useful in engine rooms and machinery spaces accessed during watchkeeping rounds.

Why High Noise Levels Marking Matters

Cumulative exposure to high noise levels without hearing protection is one of the most common causes of long-term occupational hearing loss aboard vessels, and the damage often goes unnoticed until it has already become permanent.

Standardised signage supports the vessel’s hearing conservation programme by clearly marking which compartments require hearing protection before entry, and the combined wording format helps ensure the message reaches visiting contractors, surveyors and new crew who may not be familiar with the ship’s specific noise zones. It also reinforces compliance with mandatory hearing protection policies during routine engine room rounds.

Compliance and Certification

This sign is produced to align with IMO shipboard safety signage guidance and the combined pictogram-and-text warning format used in occupational noise safety practice aboard vessels, supporting the ISM Code’s requirement for documented control of noise exposure risks. A visible high noise levels warning at engine rooms and machinery spaces is a documented control that classification surveyors and internal safety auditors look for when reviewing a vessel’s hearing conservation arrangements.

Installation Recommendations

Mount the sign at every entry point to a compartment with sustained high noise levels, including engine room doors, compressor space entrances and generator flat access points, at a height that is seen before hearing protection would need to be fitted. Use the pre-drilled fixing holes with marine-grade fasteners for exterior and high-vibration bulkheads, and the self-adhesive backing for interior doors and control panels. Review sign placement whenever noise surveys identify new high-noise zones aboard the vessel.

• 425 x 567mm rigid or self-adhesive format for steel, aluminium or GRP surfaces
• Photoluminescent base for visibility during power loss or blackout drills
• UV-stable, saltwater-resistant construction for long-term exterior exposure
• Self-adhesive or pre-drilled fixing options for fast, secure installation
• Combined pictogram and bold English text for added clarity beyond the symbol alone

Order the HS0034 High Noise Levels sign today to mark every engine room and machinery space before your next hearing conservation audit. Safety Sign Hub stocks the complete IMPA/ISSA-coded hazard sign range and ships marine-grade signage across Australia and to vessels in port, with bulk pricing for fleet orders.

See the full Hazard Signs range for related ISO 7010 warning pictograms, or browse our Fire Fighting Signs for IMO A.654(16) fire control signage to complete your vessel’s safety signage plan.