OMRON NE-C28 Inhaler Includes unused accessories Used for my dog - Brand: OMRON - Model: NE-C28 - Accessories: Mask, tube, complete inhaler set - Instruction manual: Included - Unused accessories included - Bag and box included Purchased in May 2023 The mask was used via an oxygen chamber, so it was not directly placed on the mouth. The mask has some yellowing. Parts have been disinfected with Milton. Please understand that this is a used item. Operation confirmed. Thank you for looking.