​ Dear friends, we are excited to announce that Nanjing Blue Sky Filter will attend IFA Berlin 2025 from September 7th to 9th. As one of the leading filter manufacturers in China, we warmly welcome all business partners, industry professionals, and potential clients to visit our booth and explore our latest filtration solutions.

During the summer months, I find myself spending long hours indoors under the comfort of air conditioning – and I am not alone. Whether at home or in the office, air-conditioned environments have become essential for staying cool. But like many, I began to notice a persistent sore throat and occasional cough after several days indoors. At first, I blamed the weather. Later, I realized the real culprit: poor indoor air quality caused by neglected air conditioner filters.

As temperatures soar during the summer months, air conditioners and HVAC systems become our essential companions for creating a comfortable and healthy indoor environment. But while we enjoy the refreshing breeze, one crucial maintenance task is often overlooked — cleaning your air conditioning filters.

Congratulations on the 15th anniversary of Nanjing Blue Sky Filter Co., Ltd.!For 15 years, we have stood together through thick and thin, made progress hand in hand, and remained true to our original aspiration, dedicated to providing high-quality environmentally friendly products to customers aroun

The air conditioning filter element is a crucial component in the
air conditioning system, mainly used to filter impurities, dust and pollutants
in the air entering the car or room. It not only affects air quality, but also
has a direct impact on health and the life of air conditioning systems. This

Hepa filter is mainly used to catch particles of dust and suspended matter over 0.5um.The air purifier is mainly composed of two parts: filter core and shell.The basic requirements are high filtration efficiency, low flow resistance, and can be used continuously for a long time to reduce the cost of late consumables.
The filter element refers to the air filter. Hepa air filter plays an important role in the air purification industry.

Nanjing Blue Sky Filter Co.,LTD. established in 2009, is a professional manufacturer specialized in various air filters’ research, development, production, sales and service.
We are located in Lishui economic development zone with convenient transportation access and the goods can be loaded for export at both Nanjing Port and Shanghai Port.
Nanjing Blue Sky Filter Co.,Ltd. has obtained certificates of I S O 9 0 0 1 and I S O 1 4 0 0 1 to manage our operation in a scientific and standard way.

Nanjing Blue Sky Filter Co., Ltd. established in 2009, is located in Li shui District, Nanjing, Jiangsu Province.
Main products include air purifier filters, vacuum cleaner filters and accessories, humidifier filters and other filtering products.
Our company has standardized dust-free workshop, six generations of intelligent origami machine, intelligent glue machine, automatic assembly line and other professional production equipment,
provide various customized processing services.

Nanjing Blue Sky Filter wishes you all a happy New Year!

What material is HEPA made of? There are many kinds of materials that make up HEPA, which can be divided into PP (polypropylene) high-efficiency filter paper, PET filter paper, PP and PET composite high-efficiency filter paper, and glass fiber high-efficiency filter paper. Among them, PP (polypropyl