Purpose of Air Conditioner Cleaning

For air conditioners that are left on for extended periods, if not cleaned annually, the accumulated dust on the return air filter and the fan blades can reach a thickness of about one centimeter. This is because most of the components that need cleaning are located inside the air conditioner or within the ceiling, making them difficult to see and often overlooked. This dust not only hinders air circulation, increases the load on the air conditioner, and raises operating costs, but also serves as a breeding ground for various airborne pathogens in the indoor environment. It is a primary cause of cross-infection of various air conditioner-related diseases and is the very reason behind the legislative requirement for collective spaces to regularly clean their air conditioning systems. Therefore, regular air conditioner cleaning is a small investment for big savings, and an essential step in creating a healthy, safe, and environmentally friendly office or residential environment.

One Preventive Measure Against Air Conditioning Diseases

1. Causes of Air Conditioner Disease

Central air conditioning systems govern the air metabolism of buildings. If the central air conditioning is not properly sanitized and accumulates a significant amount of dust, it can lead to the attachment and proliferation of various pathogens indoors. This dust is then blown into the room, entering the respiratory tract of individuals. Dust can cause respiratory and lung diseases, while pathogens may lead to acute infectious diseases such as jun troop disease and SARS, as well as sick building syndrome and various other air conditioning-related illnesses, triggering infections and illnesses among the population.

2 Introduction to Major Air Conditioning Diseases

Acute Infectious Disease:

Legionnaires' disease and SARS are both acute infectious diseases. Once they spread rapidly, they can cause cross-infection among a population sharing the same air conditioning system in a short period of time. Legionnaires' disease, specifically, has occurred in many countries across North America, Europe, Asia, and Africa, including China, with a mortality rate ranging from 5% to 30%. Due to the tiny size of the SARS virus, approximately 40-100nm, it relies on airborne particles as its transmission vector. The abundant dust in the extensive central air conditioning duct systems provides an ideal breeding ground for its growth. The SARS outbreak that originated in Hong Kong's Tao Tai Garden 321 during the spring and summer of 2003 quickly spread to many parts of the country, resulting in significant losses of life and property. In response, authoritative institutions such as the Ministry of Health, the Ministry of Construction, and the Ministry of Science and Technology promptly issued mandatory regulations for the cleaning of central air conditioning ventilation systems, raising public awareness of air conditioning cleaning to a new level.

bing State Building Syndrome

The World Health Organization (WHO) defines "Sick Building Syndrome" as:

1. Irritation symptoms are present in the eyes (especially the conjunctiva of the eyes), nasal mucosa, and throat mucosa.

2. Chapped lips.

3. Skin rash, urticaria, or eczema.

4. Prone to fatigue;

5. Frequent headaches and respiratory infections occur.

6. Difficulty breathing, with a hoarse sound in the respiratory tract.

7. Allergy without the Reaction: Suffering from Allergies Despite Absence of Allergic Reaction

Recurrent dizziness, nausea, or vomiting.

Air Conditioning Cleaning, Preventing Air Conditioning Syndrome

Regular air conditioning cleaning prevents dust accumulation in all components, eliminating habitats for bacteria and viruses to thrive. This helps avoid the aforementioned air conditioning-related illnesses caused by dust and pathogens.

Reduce operational costs

Excessive dust accumulation on air conditioner return filters, fan blades, ducts, and fins increases air flow resistance, leading to higher electricity consumption and, subsequently, increased operation costs for the air conditioner. Regular cleaning of the air conditioner can reduce its operating costs.

Improved Adjustment Effectiveness

Many air conditioners experience a significant drop in cooling or heating efficiency after prolonged use. The primary reason is that the evaporator of the air conditioner becomes covered in dust, hindering energy transmission. These energies must pass through the dust before contacting the air, greatly reducing the efficiency of air conditioning. This is a major reason why many air conditioners fail to perform as expected.

Four Preventive Measures Against Equipment Damage

Due to the increased wear on components caused by dust accumulation inside the air conditioner, as well as the long-term corrosion of these components by the dust, there is an easy decline in service life, damage to the power system, and even catastrophic accidents due to circuit failures.

Five implement national regulations

Because air conditioning hygiene is related to 50%-70% of indoor diseases, the country attaches great importance to air conditioning cleaning and has successively issued mandatory policies and regulations, stipulating that centralized air conditioning systems in public places must be cleaned regularly. The Ministry of Health will also implement stricter measures in local governments (such as Shanghai and Guangzhou) to promote the air conditioning cleaning process.