African american certified technician cleaning built up layer of dirt and dust from air conditioner internal parts to prevent reduction of cooling capacity and working capacity

Related tags:

• air conditioner repair
• technician
• installation
• repairman
• electrician
• electrical work
• electrical installation
• maintenance
• electrical engineer
• repair
• contractor
• worker
• fix
• ventilation
• engineer
• toolkit
• toolbox
• compressor
• work
• 13+