Compare MERV and HEPA filters by efficiency, particle size, airflow, pressure drop and applications. Learn how to choose the right HVAC air filter.

HEPA filters and activated carbon filters are often used together, but they do not do the same job. HEPA media mainly helps capture dust, pollen, pet dander and fine particles, while activated carbon helps reduce odors and certain household gases. This guide explains the difference between the two materials, when each one is useful, why many filters use a combined structure, and what buyers should check before choosing replacement filters.

​ 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.

This September, Nanjing Blue Sky Filter will be participating in three major international exhibitions. We are excited to meet global partners, showcase our latest filtration solutions, and explore new opportunities for cooperation.

Today marks the Double Ninth Festival, a traditional Chinese holiday dedicated to showing respect and care for the elderly. On this special day, families come together to honor their loved ones and promote health and longevity.One of the most meaningful ways to care for the elderly.

How to Choose the Right Vacuum Cleaner Filter for Your NeedsWhen it comes to keeping your home or workplace clean and free from dust, having a reliable vacuum cleaner is essential — and at the heart of every vacuum cleaner is its filter. Choosing the right vacuum cleaner filter is crucial for both c

Why Dehumidifier Filters Matter More in Summer — And How to Choose the Right OneAs temperatures climb and humidity levels soar during summer, one essential household appliance comes into the spotlight: the dehumidifier. While it's widely known that dehumidifiers help reduce excess moisture in the air.

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

Time flies, 2024 has quietly passed, ushering in a hopeful 2025. Whether it is for individuals, or for enterprises, 2025 carries more expectations and challenges. With gratitude and joy, we send our most sincere wishes to all friends, partners and dear customers: "Happy New Year, all the best!"

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.