What purification equipment is needed for clean rooms in food factories?

In the field of food production, the quality of the production environment in clean rooms is directly related to food safety and product quality. Food safety problems will directly affect the corporate image. In order to create a clean space that meets the standards, a series of professional purification equipment is indispensable. This article will focus on the role of air filters.

First of all, the most basic line of defense for clean rooms in food factories is the primary air filter. In conjunction with the ventilation system, it can effectively intercept larger dust particles in the air, such as dust, fibers, and other impurities with a particle size greater than 5 microns. Generally speaking, the filtration efficiency of the primary filter can reach about 50% - 80%. Its material is mostly non-woven fabrics or metal mesh. It bears the heavy responsibility of preliminary air purification at the front end of the ventilation system to prevent large particle pollutants from damaging subsequent equipment and reduce filtration pressure.

The medium-efficiency air filter is the key link to further improve the cleanliness of the air. Its filtration accuracy is between 1-5 microns, which can filter out smaller particles such as pollen and bacteria, and the filtration efficiency can reach more than 70% - 90%. The medium efficiency filter made of glass fiber or synthetic fiber can further remove some microorganisms after the initial filtration, ensuring the sanitation and safety of the food production environment.

The hepa air filter is one of the core equipment of the clean room of the food factory. For tiny particles with a particle size of 0.3 microns and below, the filtration efficiency of the high-efficiency filter can be as high as 99.99% or more. This means that it can almost completely block extremely tiny pollutants such as viruses and bacterial spores, providing an extremely clean air environment for food processing. For example, in some dairy or baked food production workshops with extremely high hygiene requirements, high-efficiency filters can ensure that the number of microorganisms in the air is extremely low, effectively preventing food from being contaminated and deteriorating.

In addition to air filters, air showers are also commonly used purification equipment in clean rooms of food factories. Employees need to pass through air showers before entering the clean production area. The strong clean airflow inside the air shower can blow off pollutants such as dust and hair attached to personnel in a short time, such as 15-30 seconds, greatly reducing the risk of personnel bringing in pollutants.

In addition, laminar flow hoods can provide uniform and stable laminar clean air in key areas of food processing. The air supply speed is generally controlled between 0.3 and 0.5 m/s, which can effectively ensure that the air in the working area is always clean and avoid the accumulation of dust and microorganisms.
For food factories, it is very important to reasonably select and match these purification equipment according to different production processes and cleanliness requirements. With rich industry experience, bacclean can tailor professional purification equipment solutions for food factories, help food companies create a safe and high-quality production environment, and ensure that every piece of food can be produced and processed under clean and pollution-free conditions.