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Horizontal photo of female hand opening up heater floor vent with Red Oak Floors in background
black Female technician service open air conditioner indoor for checking and repairing, Air conditioner service indoors. Air conditioner cleaning technician she opened the front cover and took out the filters and washed it
An armed crew member looks up during his patrol of the USS Emory S. Land, a submarine tender of the US Navy docked at Garden Island naval base in Sydney Harbour. On his left is one of four 0.5 calibre machine guns mounted on the ship.  This image was taken on a cold and sunny morning on 29 June 2024.
Dirty Air Filter in A/C unit
San Diego, California - April 16, 2024: Close-up view of the USS Midway aircraft carrier deck with lifeboat and crew members.
FA18 SuperHornet military jet on board the USS Carl Vinson undergoes maintenance
Claim of split system damage. Female claim agent checking air condition modules as part of insurance claims process in condominium
Aircarft carrier officer on the flight deck of the USS Midway, San Diego, California
air con maintenance engineer in empty office floor
Miramar, California, USA - September 22, 2023: An F-18 Hornet gets ready on the tarmac for take-off at America's Airshow 2023.
black Female technician service open air conditioner indoor for checking and repairing, Air conditioner service indoors. Air conditioner cleaning technician she opened the front cover and took out the filters and washed it
The bow of HMAS Sydney, a destroyer of the Royal Australian Navy. \n She is docked at Garden Island, Sydney Harbour, in preparation for an open day to the public during Navy Week, the first open day since the Covid pandemic.  This image was taken on a sunny afternoon from Woolloomooloo Bay on 25 February 2023.
Air conditioning on ceiling of bus. Hatch in transport. Bus was flown. Roof of transport.
Black air conditioner system at ceiling
Close up of a household air vent
air con maintenance engineer in empty office floor
Aircraft Technician inspecting and working in the main electronics bay of a 757 commercial airplane.
back female Worker holds brush from portable steam generator for maintenance air condition
Hands in protective rubber gloves opening clogged air ventilation grill of HVAC with dusty filter to clean or replace it. Cleaning service concept.
One crew member is raising two maritime flags, while the other watches or assists, on the bridge of USS Canberra (LCS 30), an Independence Class combat ship of the US Navy which is docked at Garden Island in Sydney Harbour.  She was in port for her commissioning ceremony on 22 July 2023.  As part of the ceremony, her captain was presented with a kangaroo insignia attached to all ships of the Royal Australian Navy, but decorated in the colours and design of the Stars and Stripes.  That insignia has been attached to the ship and visible on the right.  The name of the ship and serial number is visible on the orange life ring.  A large, padded chair is visible on the bridge.  This image was taken on a cloudy afternoon on 29 July 2023.
Cleaning wall-mounted dusty hood ventilation grill in bathroom with vacuum cleaner. Housekeeping, housework, housecleaning, cleaning service concept
Refrigeration equipment on top of concrete wall
The view of open type exhaust gas scrubber treatment system on board a merchant ship at sea. This system is used to minimise pollution caused by funnel exhaust.
Claim agent, woman register and photograph air conditioning external modules and units in condominium. Low angle view
Man shows dirty hands from a dusty ventilation grill. Indoor air pollution concept
black female  Cleaning Air Conditioning System, Aircondition service and maintenance, fixing AC unit and cleaning the filters
Mature man examining an outflow air vent grid and duct to see if it needs cleaning. One guy looking into a home air duct to see how clean and healthy it is.
Rough purple wall with a mesh covered opening
Free Images: "bestof:Navy 100922-N-1092P-025 Seaman Amanda Carlton cleans the air-conditioning vents in a berthing compartment aboard the Nimitz-class aircraft carri.jpg en ARABIAN"
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