HEPA Filter • DA-HF Goodway's HEPA filters get true HEPA filtering down to .3 microns at 99.9% efficiency. These high-quality filters are compatible with DV-AV9-EX, DV-AH, DV-CD, and DV-M2 industrial vacuums. Request a Quote $475.00 Quantity Buy Now View Full Details $475.00 Quantity Buy Now