Who we are
Longday is a professional solutions provider of air filtration products.
We design, produce, and deliver high-efficiency filters and filter elements for manufacturers (OEM) and wholesalers worldwide according to customer requirements.
We cover the needs of different market segments such as: On road, Off road, Marine and Air Purification Systems for indoor air quality, Railway, and Industrial.
We meet the strict filtration requirements of all major sectors including automotive, mining, agricultural, construction, heavy-duty machines, energy, biotechnology, food, and medical industries.About Us