A hospital is a special type of building that always needs to be well ventilated and clean to ensure the examination and treatment of patients in the hospital. Therefore, the design of air conditioning and ventilation systems for hospitals is always something that contractors need to pay attention to when building. So if you have questions and want to learn about this design standard, please follow the article below of P69 Mechanical Factory!
What is an air conditioning system?
This is a system consisting of one or more central machines that combine into an overall cold distribution system for all areas in the building. The central air conditioning system uses water as the cooling agent through the pipeline system to bring water to the heat exchangers to cool the air.
Design standards for air conditioning and ventilation systems for hospitals
Design requirements for the ventilation – air conditioning system of a general hospital are specified in the National Standard TCVN 4470:2012 General Hospital – Design standard:
– When designing ventilation and air conditioning systems for hospitals, it is necessary to have technological solutions, architectural and structural solutions in a reasonable way to ensure hygiene requirements and comply with the provisions of TCVN 5687 : 2010 and ensure the construction works use energy efficiently.
– It is necessary to design mechanical ventilation for laboratories that produce toxic vapors, dust and gas mixtures with fire and explosion hazards or have incinerators.
1. Some notes that you need to pay attention to when designing an air conditioning system
– For laboratories with toxic fumes, it is necessary to arrange on-site fume extraction by fume hoods. The place to release toxic vapors must be located in a well-ventilated place that does not affect people working or living.
– The number of room air exchanges is calculated according to the permissible concentration of toxic vapors in the room and the amount of excess heat released.
– Ceiling fans and mechanical ventilation systems must be designed for departments and rooms in the hospital.
– Lobby, reception, registration place, place of registration to get numbers and receive/return results, auxiliary areas and corridors should use both natural and artificial ventilation methods.
– The area where the air conditioner is located should be distributed according to the conditions and have an appropriate operating time depending on the function of each room.
– Temperature and humidity in the hospital are specified in the table below
| Area | Temp
(°C) |
Humidity
(%) |
Air circulation
(times/hour) |
Note |
| Intensive treatment | 21 – 24 | 70 | 10 – 15 | |
| Interventional techniques | 20 – 24 | 70 | 10 – 15 | |
| Laboratory, X-ray, ultrasound | 21 – 26 | 70 | 3 – 5 | |
| Diagnosis Diagnostic imaging | 21 – 26 | 70 | 6 | |
| Operating room, recovery room awake sterile corridor | 21 – 24 | 60 – 70 | 15 – 20 | |
| Pre-anesthesia, clean corridor | 21 – 26 | 70 | 5 – 15 | |
| Lamina HOT | 19 – 22 | 60 | 20 | |
| Clean area | 21 – 26 | 70 | 1 – 2 | Laboratory |
– Ventilation system in the area of operating rooms, delivery rooms, children’s rooms, sterile rooms must ensure the relevant current regulations.
The role of ventilation and air conditioning systems for hospitals
It is necessary to install a wind and air conditioning system in the hospital. This is the most effective and optimal solution to ensure air quality as well as protect the safety of patients and those working in the hospital. In addition, hospital ventilation also has the following effects:
1. Maintain air quality
Effective control of air quality and temperature and humidity in all hospitals is the key to keeping patients safe and, in some cases, even part of their treatment. surname. Ventilation systems in the hospital will be designed for the best patient care, accurately controlling the air, temperature and humidity requirements in different areas of the hospital. At the same time, it plays a round role to limit the movement and spread of toxic gases, bacteria, and other pollutants in the air.
2. Remove and filter polluted air
Hospital ventilation systems are also effective in removing pollutants, purifying the air, and limiting bacterial infections such as MRSA, mycobacterium tuberculosis, legionella pneumophila (legionnaire disease) or viral infections such as flu, measles, mold … These are all equally dangerous diseases if infected.
3. Protect patients with low immunity from infection by others
For patients with immunosuppressive diseases such as cancer (especially cancers involving bone marrow and blood cells), HIV, and those undergoing transplant chemotherapy drugs… It is necessary to minimize the transmission of disease from other sources to ensure the health of the patient. Therefore, providing clean, fresh, and unpolluted air is a top priority in hospitals and patient care facilities.
4. Protect people from contamination by pathogens
Hospitals or health care facilities need to design special care rooms for people with infectious diseases, to ensure that bacteria, viruses, etc. do not spread to the entire hospital space. Good ventilation isolates contaminated air through air filtration, helping to protect patients, caregivers, hospital staff, and visitors from infectious disease.
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Contact information P69 Mechanical Factory
Address: Km 18, Thang Long Boulevard, Thach That Quoc Oai Industrial Park, Hanoi
Office: No. 06/165C, Xuan Thuy, Cau Giay, Hanoi
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