INT-HK-ADV-2.2.1

High-Level Cleaning, AC Vents and Working Around AV

High-level and behind-the-scenes cleaning, safe and correct cleaning of AC grilles and vents in coordination with engineering, and how to clean around AV equipment and screens without causing damage.

A guest lies back on the master bed and looks straight up. Above her is a supply vent with a grey fur of dust on the blades, and a downlight ring with a dead insect in it. Everything at eye level is perfect. Everything above eye level has been invisible to the interior team for six months.

High level and behind the scenes

The dirt that guests notice least is the dirt that damages most: dust that recirculates, feeds mould and settles onto gloss where it becomes abrasive.

  • Work top down: headlining, coving, light fittings, curtain pelmets, high shelves, tops of doors and frames, picture tops, then down to furniture and floor.
  • Use a long-reach microfibre duster and clean the head frequently. A saturated duster just moves dust around and drops it on the carpet you are about to vacuum.
  • Behind and under: sofas, beds, bedside units, wardrobes, appliance plinths, bar fridges, washer-dryers. Lint behind a dryer is a fire risk, not a cosmetic issue.
  • Headlining panels are often stretched fabric or alcantara — vacuum with a soft brush, do not wet.

Air handling and vents

Vents are the lungs of the interior. Dirty grilles mean dust, smell, poor cooling and complaints.

Item Interior task Engineering task
Supply/return grilles Vacuum, remove and wash where designed to be removed, dry fully before refitting Confirm removal is permitted
Filters Report visible loading Change or clean to schedule
Ducting Report smells or dust blow Specialist duct cleaning at yard period
Fan coil trays and drains Report water marks or musty smell below a vent Clear condensate drains
  • Coordinate with the engineers. Do not pull a grille off a fan coil unit without agreement, and never spray cleaner into a vent.
  • A musty smell at a vent means moisture in the system. That is an engineering report the same day, not a scented spray.

AV, electronics and screens

  • Power down and, where possible, isolate before cleaning around AV. Static, moisture and stray cloths cause faults that get blamed on the AV contractor.
  • Screens: dry microfibre, or the manufacturer-approved screen cloth. No glass cleaner, no alcohol, no ammonia — they strip anti-glare coatings and matt the panel.
  • Never spray anything near a screen, a speaker grille, a projector or a control panel. Spray the cloth, well away from the equipment.
  • Vacuum equipment cabinet vents with a soft brush and low suction; heat build-up from dust kills amplifiers.
  • Speaker grilles and acoustic panels: soft brush only. Do not push the fabric in.
  • Cables and racks are engineering property. Dust around them; do not tidy, unplug or re-route.

Onboard Notes

  • Working at height in a seaway is a hazard. Use a proper step, both hands, and never at sea in a swell.
  • Dust the light fittings when they are cold. Dust burns onto a hot bulb and smells for hours.
  • If you find water staining on a headlining or around a vent, treat it as a leak until an engineer says otherwise. Cosmetics can wait; the source cannot.

Practice questions

5 questions
recallcore

recall · core

How should a flat-screen television or monitor be cleaned in a guest cabin?

recallcore

recall · core

What is the correct interior response to a musty smell coming from an AC vent?

scenariocore

scenario · core

A guest lies on the master bed and complains that the supply vent above her is grey with dust. How did this happen and what do you change?

scenariostretch

scenario · stretch

You need to dust inside the AV cabinet in the cinema. How do you do it safely for the equipment and for yourself?

oralstretch

oral · stretch

Explain how the interior and engineering departments should divide responsibility for air handling and vents.

Independent study. xplor is not an IAMI- or PYA-accredited GUEST training provider. This course covers the ground assessed in GUEST Unit 08; it awards no GUEST unit, certificate or Certificate of Competency and does not count toward one.

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