Excessive humidity in a property can have a significant impact on the structural integrity as well as the safety of those inside. In both residential and commercial settings, there is a requirement to find the problem and eliminate it as quickly as possible. For many of us, we look to opening our windows, using dehumidifier machines and reducing the amount of hot water we use. But did you know that an air conditioner can also reduce humidity?


Humidity is the percentage of water vapour in the air. It is dictated by several factors, including the surrounding climate, leaking pipes, rising damp in building materials, and faulty seals around doors and windows. Too high a percentage of water in the air within your home impacts the condition of the building. It causes mould growth, condensation and mildew as well as potential slip hazards and damage to your furniture. If this damp is left for too long, these conditions can impact the structure of a property, causing corrosion and decay.


Air conditioners are designed to reduce the ambient temperature in a room. Damp and humid air holds on to heat significantly more than dry air does. Therefore, an air conditioners role is to remove this water vapour from the air as it operates. Below, we’ll explain the process in simple terms:

  • The air conditioner draws in the hot humid aid in a room.
  • As this air passes over the cold evaporator coils, the water vapour ‘condenses’.
  • This condensation is collected and drained from the system.
  • The dry, cooler air is pushed out of the air conditioner and into the room.
  • This process happens every time you turn your air conditioner on. Not only does it create a comfortable environment inside the room but it is also working to protect the integrity of your home too.


Air conditioners are highly efficient at their jobs but there are some ways you can ensure it is best equipped to remove the water vapour from your home. Our tips inside:

  • Keeping the evaporator coil dirt and dust-free.
  • Keep your fan at a mid-level speed. This way it will remove humidity but won’t overwork.
  • Consider a TXV (thermal expansion valve) that improves the available capacity of your evaporator coil, ensuring it is always ready to work.
  • Install the right sized air conditioner unit for your room.

Here at Controlled Climate, we offer full-service air conditioning packages to both residential and commercial businesses in the UK. As well as reducing humidity, our machines reduce internal heat and help to meet your exacting needs. If you would like more information about air conditioners or need to speak to a member of our team, please do get in contact here today.