Close up of man hands installs or repairs the air conditioner in the apartment room.
Open roof of dark ail traditional Altai house and glowing sunlight low angle shot. Ventilation hole in old ethnic building rooftop. Folk architecture
Air conditioner units on top of industrial building 4k
Aerial top down view of ventilation and air conditioning systems installed on the rooftop of a skyscraper in a developed business district
Knowleadgeable engineer arriving on location to help fix system electrical issues caused by improper wiring or broken capacitor requiring
Green house air system exterior pan shot 4k
Closeup of air extractor in the workshop. Air duct system at food factory. Air flow in conditioning pipe. Air duct work in industrial premises
Back view of hotel employee in uniform, apron, gloves pulling curtains aside before opening window for airing. Maid going to ventilate hotel room after guest's departure and before cleaning
Professional technician male Removing dirty air conditioner filter for wash, The man cleaning and washing maintenance, worker to service cleaning and repair at home, dust and dirt for healthy living
Close up Hands of workman using drill, Installing Furnace and Central Heating Pump Duct. Heating and Cooling Work.
Unrecognized establish two working air heating system. Installing Furnace and Central Heating Pump Duct. Heating and Cooling Work.
Contaminated ventilation compartment, close-up
Two men working on the air condition while standing on the roof, steadycam shot
Unrecognized establish worker air heating system. Installing Furnace and Central Heating Pump Duct. Heating and Cooling Work.
Mechanical ventilation equipment in hospital
Close-up of covid-19 infected patient in bed in hospital, coronavirus and breathing problems concept. Doctor setting air mask.
Cooling system at green house grow building 4k
New Home HVAC Air Conditioner system.
air conditioning- turn off air conditioner
Two construction engineers discuss the architectural plan of the facility at the construction site. Builders Teamwork Concept.
Cooling Fan Ventilator
Home Duct Cleaning Services, ventilation cleaner
Ventilation pipes and tubes hanging on ceiling. Ducts installed on ceiling. Safe in basement.
Man checking data abour air condition on electronics and working on the roof, st
Male doctor adjusting pillow and blanket for exhausted sick Caucasian woman. Female patient with Covid-19 positive diagnosis in hospital ward. Health care, coronavirus pandemic.
African american specialist in professional uniform with technical equipment climbing folding ladder to do maintenance on rooftop air
City building with ventilation system on roof 4k
person presses rubber buttons with marks on used air conditioner remote control extreme close view
Home Duct Cleaning Services, ventilation cleaner man at work with tool. Slow motion view
Unrecognizable paramedics hands providing cardiac massage on chest of patient. Medical workers using respiratory mask for ventilation man lungs with coronavirus pneumonia. Ambulance doctors doing CPR
Abstract textures and patterns- old rusty metal grill window
Home Duct Cleaning Services, ventilation cleaner man at work with tool on the floor. Slow motion footage 4k
Hands of workman using drill, Installing Furnace and Central Heating Pump Duct. Heating and Cooling Work.
Ceiling fan on wooden roof. Electric ceiling fan rotating slowly and air circulation. Air circulation. Cooling fan. Ventilation fan on ceiling. Wooden roof background
Industrial fan metal shutters opening. Opening of industrial ventilation. Cooling air in industry. Blower behind metal grille. Industrial equipment. Power conditioner blow warm air
Unconscious man breathing in oxygen mask. Male patient lying on stretchers. Sick guy with coronavirus transferring to hospital in ambulance car. Closeup man wearing non invasive ventilation mask
Tracking shot of sick female patient lying on ventilator in hospital ward while getting covid-19 treatment
Abstract textures and patterns- old rusty metal grill window
Selective focus shot of male patient lying on ventilator with IV drip on couch in hospital ward while getting covid-19 treatment
Dolly close-up of working ventilator moving to and fro
Technician servicing and repairing indoor air conditioner, electrician fixing AC issue
Man checking plan about air condition and compares with information on laptop, s
Skilled mechanic filling out revision of insurance contract for home owner to sign after finishing repairments on air conditioner
Electrician doing yearly hvac system investigation, assembling manifold gauges before mounting it on condenser. Expert serviceman looking
Air conditioner units on exterior of apartment building 4k
Technician servicing and repairing indoor air conditioner, electrician fixing problem
Close up of manifold meters used for checking air conditioner freon in need of service. Set of barometer high or low refrigerant levels
Expert technician doing inspection of freon levels and necessary repairs to prevent major breakdowns. Seasoned mechanic troubleshooting hvac