Dental surgery air conditioning

Why dental surgeries get hot

A dental surgery is a small room with a lot going on. The operating light, the chair, the suction and compressor, an X-ray unit, computer screens, and two or three people in gowns, masks and visors. The dentist and nurse are working hard and close together, while the patient lies still and may feel cooler than the team. In summer, or in a converted building with poor windows, the room can become uncomfortable for everyone well before lunch.

Decontamination rooms add the heat of washer-disinfectors and autoclaves, and reception and waiting areas have their own needs. Each room is treated on its own terms.

Treatment rooms: airflow off the chair

The most important design point in a treatment room is where the air goes. We place the indoor unit so its airflow travels along the ceiling and away from the patient’s face and the working area. That keeps the team comfortable without a cold draught on a nervous patient lying back in the chair. We also look at how the unit relates to the operating light, cabinets and any ceiling-mounted equipment.

Units need to be quiet enough not to add to the noise of the handpieces and suction, and the controls should be easy for the team to adjust between patients. A simple wall controller, rather than a remote that goes missing, often works best.

Decontamination rooms

Department of Health guidance HTM 01-05 covers decontamination in primary care dental practices, and your decontamination room will have been set up with it in mind, often with its own ventilation. Air conditioning in that room must not upset the way air is meant to move between the dirty and clean sides, so we don’t treat it as just another room. We will look at the existing ventilation with you, and if cooling is needed we place the unit so it works alongside it. Where a ventilation change is needed, we can talk through ventilation options or suggest you involve the adviser who designed the room.

Cleanable and tidy

Dental surfaces are wiped down between every patient. Indoor units should have smooth casings that can be wiped, filters that come out easily for cleaning, and pipe runs that are neat, sealed and out of the way. We avoid boxing that collects dust, keep condensate drains well clear of clinical surfaces, and leave each room ready for your own clean before it goes back into use.

Waiting rooms and reception

Patients who are nervous about treatment notice a hot, stuffy waiting room. A cooler, calmer space helps. Reception staff work there all day too. Wall units or a cassette, depending on the room, keep the area comfortable and can heat it in winter as most systems are heat pumps.

Compressor and plant rooms

The dental compressor and suction plant are often in a cupboard, basement or outbuilding, and they give off heat while they run. If that space gets too hot, the equipment can struggle. We look at plant spaces on the survey and, where cooling or ventilation would help, include it in the scheme. The equipment maker’s guidance on operating conditions is the starting point.

Specialist rooms

Some practices have an OPG or CBCT imaging room, a separate hygienist surgery, a laboratory or a small staff room. Imaging rooms can get warm from the equipment and often have no window. Labs can be dusty, which means filters need cleaning more often. We size and place units for each room, and agree service intervals to suit.

Choosing a system

Many practices are in converted houses or shops with two to five surgeries, an office and a waiting room. A multi-split can serve several surgeries from one outdoor unit, each with its own control. Larger or purpose-built practices may suit cassettes or VRF. Outdoor units go where they have airflow and won’t disturb neighbours, and in conservation areas or listed buildings we plan for the council’s approval.

Installed outside clinic hours

We install in the evenings, at weekends or on non-clinical days, so appointments are not lost. Treatment rooms are protected or emptied before we drill, dust is contained, and each room is handed back clean and tested. In a busy practice we can work one surgery at a time, so the rest of the practice keeps seeing patients while the work goes on.

F-Gas, TM44 and maintenance

As the operator, the practice is responsible for the system’s F-Gas leak checks where the refrigerant charge needs them, carried out by an F-Gas certified company. If the air conditioning in the building totals more than 12 kW, a TM44 inspection is needed at least every five years. A maintenance contract keeps filters clean and records up to date, with visits booked outside clinics. Dental installs are priced after survey on a fixed-price quote.