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So,panel filters class G4. They are found everywhere, from ventilation systems of industrial enterprises to air filtration in offices. Often, when choosing, clients focus on price, but characteristics and real efficiency... are often overlooked. We, at Tianjin Tongchang Junqi Cleaning Equipment Co., Ltd., have considerable experience in this field, and often find that customers overpay for unnecessary functions or, conversely, choose a filter that is too weak. I would like to share my thoughts, conclusions, even some 'unsuccessful' attempts. I don’t promise an ideal structure and verified formulations - these are just thoughts born from practice.
Filtration rating is essentially a measure of how effectively a filter traps dust particles and contaminants. G4 is a class that is capable of capturing particles ranging in size from 0.1 to 10 microns. For most industrial premises, offices and even some medical institutions, this is quite enough. But it's important to understand that this is not a 'one-size-fits-all' option. Some processes require a higher degree of purification - then they are already looking at filters of higher classes, for example, M5 or even HEPA. Trying to use the G4 in dirty conditions is like trying to hold water with a rubber spoon. The result will not be impressive.
When choosing a filter, you should not chase the “highest” class. It is important to understand the specifics of the task. For example, in a woodworking shop where fine wood dust is constantly generated, G4 may not be enough. While in an office where the main source of pollution is dust from the street, G4 will be quite sufficient. Simply, it is important to assess the level of contamination and select a filter accordingly.
Mostpanel filtersare made from cellulose material. But not all cellulose is created equal. Not only its composition is important, but also the processing method. We often experiment with different additives to improve filtration properties, increase service life and improve moisture resistance. This is especially true for rooms with high humidity.
The design of the filter also matters. One common option is a panel made of cellulose material mounted in a metal frame. It is important that the frame is strong enough to withstand the air pressure. In addition, do not forget about the system for attaching the filter to the ventilation system. An incorrect mounting system can lead to air leaks and reduced filtration efficiency. For example, in one of our projects we encountered the problem of the filter not fitting tightly to the fan housing. This caused some of the contaminated air to bypass the filter, with unsatisfactory results.
Cellulose filters are a classic. They cope well with dust, insects and other large contaminants. But there are other options, such as synthetic filters, which are more resistant to moisture and chemicals. Synthetic filters can also be more durable, but also more expensive. The choice depends on the operating conditions.
Another important aspect is the presence of pre-filters. Pre-filters are usually coarser and serve to capture large dust particles and contaminants. This allows you to extend the service life of the main filters, as well as reduce the load on the ventilation system. We often recommend the use of two-stage filtration: a pre-filter and a main G4 filter. This can significantly increase the efficiency of air purification and extend the service life of filters.
One of the most common questions we encounter is how often to replace filters. Many customers believe that filters can be changed every six months or even longer. But this is not always the case. The frequency of filter replacement depends on the level of air pollution. If a lot of dust is constantly generated in the room, then the filters need to be changed more often. Otherwise, they may become clogged, reducing filtration efficiency and increasing the load on the ventilation system.
It has happened several times that customers have ordered filters that are too durable, expecting them to last for several years. But in the end, due to clogging, the filters had to be changed much more often than planned. It is better to change filters regularly than to face serious problems later.
Incorrectly sized filters or installation errors can result in air leakage and reduced filtration efficiency. It is necessary to carefully measure the dimensions of the ventilation system and use filters that correspond to these dimensions. We offer services for fitting filters to specific ventilation systems.
In one of our projects, we encountered a problem with the size of the filter and the fan housing not matching. This led to a loose fit of the filter and air leakage. I had to replace the filter with another one, which required additional costs and time. Therefore, we always pay great attention to the accuracy of measurements and sizing.
We strive to offer our customers not just filters, but a comprehensive solution for air purification. We cooperate with the Air Conditioning Research Institute of the China Institute of Building Sciences, which allows us to continuously improve our products and offer the latest technology. We offer a wide rangepanel filters class G4, as well as services for the selection and installation of filters.
Our experience and knowledge allow us to offer customized solutions for each client. We take into account the specifics of the tasks, operating conditions and budget. We value the trust of our clients and strive for long-term cooperation. You can contact us at https://www.tcfilter-group.ru to learn more about our products and services.