Patent ID: 11925764
Assignee: VERO BIOTECH INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. An apparatus comprising:
a cartridge including an inlet configured to receive a nitrogen dioxide-containing gas;
a porous polymer resin-based solid matrix comprising a surface-active material embedded within the porous polymer resin-based solid matrix, wherein the surface-active material comprises a silica gel present in an amount of 20% to 60%; and
an aqueous antioxidant wetting the surface-active material,
the cartridge is configured such that when the nitrogen dioxide-containing gas flows from the inlet and across the porous solid matrix, the aqueous antioxidant converts nitrogen dioxide to nitric oxide,
the cartridge includes an outlet configured to expel a nitric oxide-containing gas that has passed through the substrate.