1). The lter medium used is a progressively structured nonwoven made from break-resistant synthetic- organic bers.

2). The frame is made of Aluminum, glued to the pleated lter medium at the four interior sides of the frame in a dust-proof con guration.

3). NO Welded Wire Grid on the media;

4). Large dust holding, small resistance;

5). The moisture-proof may reach 100%;

6). Temp. Resistance: 80º C.

7). Different size can be customized.