Application of air filter in food industry

People take food as their heaven, and food takes safety as the first priority. Nowadays, food safety has become a social issue that everyone is generally concerned about, which urges the majority of food manufacturers to pay attention to the sanitation of the production environment at any time. Nowadays, problems such as air pollution and the total number of bacterial colonies in food have become common in food factories. In the face of increasingly strict national standards, the degree of pollution has gradually increased. More and more food companies have begun to pay attention to the air quality in the workshop. The indoor space that looks clean is full of all kinds of bacteria, so at this time our air filter plays a role in protecting the air quality.

The food industry is becoming an expanding market for air filtration equipment. In order to maintain the fresh taste of food, the method of decontamination by sterilization has been gradually abandoned. This makes it even more important to eliminate product-related air pollution. State regulations, insurance awareness, and public concern are prompting meat processors, dairy producers, and other food producers to update their air filtration systems.

In Europe, canning of yogurt is carried out under clean room conditions. Breweries have found that to protect their draft beer, air pollution in the environment surrounding the bottling plant must be controlled. Filling in a clean room is the best option. Such plants require a class 100,000 clean room, which can use an overhead ventilation system, filtered with a HEPA filter.

In the northern French city of Amiens, Sulzer designed a clean room for its kitchen. Sulzer's kitchens are clean room class 100 with the necessary heating and freezing facilities. According to US Federal Standard 209 D, food should be sub-packaged under the conditions of cleanliness class 100 and room temperature of 12°C. This guarantees aseptic operation, the benefits of which are improved quality, increased nutrition, improved taste, and extended shelf life.

GB 14881 National Food Safety Standard General Hygienic Specification for Food Production has certain provisions for various facilities of food enterprises, including temperature control facilities, storage facilities, ventilation facilities, lighting facilities, etc. Today I will introduce to you the content of ventilation facilities. During food processing and production, adequate ventilation must be provided to ensure a comfortable and safe working environment. Unreasonable construction (heating, ventilation, and drying), installation operations, and negative pressure during food production may even cause contamination by pathogens. 

Why install ventilation? 

All food factories require ventilation.

Air filtration is necessary to ensure relative sealing of critical work areas.

Air can be used as a transport medium for pollution sources. These contaminant-carrying air, which may originate from outside the processing area or may originate in the production area, are ventilated to control air movement.

Supply air of specified quality including temperature, humidity, particle concentration, and quantity (fresh air volume).

Good sanitary air quality is required for production to run efficiently.

Good air quality can ensure the comfort and safety of production employees, maintain a safe working environment, reduce the potential for pollution, and help ensure product shelf life. What are the precautions for designing and installing food factory ventilation facilities?

Guarantees effective continuous indoor pressure to prevent contamination from entering high hygiene areas.

The ventilation system design will be affected by the level of overpressure and the number of air changes required.

The total number of air changes needs to be assessed in terms of size, area, number of people, and equipment used, in addition to the risk assessment based on its size.

Indoor pressurization and air optimization can often provide the required level of sanitary air quality, with discretionary considerations for energy-intensive cleanrooms. 

Food Factory Air Quality Guardian - Ventilation facility, the final filtration level is determined based on product type and risk assessment, taking into account factors such as cost, filter life, and high clean area protection. 

Aseptic filling and some more critical operations will require more efficient air filters. 

Conduct a certain hazard analysis to ensure that the air quality meets the standard requirements. 

It is best to consult a company with expertise in ventilation and filtration, that can give more specialized advice and take into account more specific influencing factors. A professional company will ventilate with a combination of factors including monitoring and filter life, air quality surveys, maintenance of ventilation equipment, engineering solutions, air quality documentation for audit purposes, and filter performance, rating, type, efficiency, etc. Equipment design selection. 

The ideal ventilation system used in the food industry should achieve the effect of being able to purify and provide a sufficient amount of air, maintaining proper temperature and humidity, accessible pipes without affecting operations, having pressurized conditioning spaces, and effectively preventing contamination material and easy to clean.

Wuxi Lenge Purification Equipments Co., Ltd. is a professional purification equipment manufacturer. Suitable for pharmaceuticals, laboratory, food & beverage, electronics, etc. If you are interested in purification equipment, please get in touch with us! You can call 86-510-85189266. Or send an email to export@wxljjh.com.