PureVent Pet Oxygen Mask for Dogs, Cats, Animals – Veterinary-Grade Oxygen Therapy

Poor fit - standard poodle (large)

I went by the weight provided as a guide and that was a mistake. The medium mask says up to 22 lbs and, as my dog is 65 lbs, figured the large was needed. However, it is not close. I would completely ignore the weight guidance and only use the diameter. Should not even by shown, IMO. Can't speak to quality as it's unusable. I'm to blame as well, but as a non-vet buyer of these products, be aware.

Have not had to use it yet. Thank the lord. But it looks sturdy enough to do the job.

Better for my Chihuahua

I like the medium mask as it covers his facemaking it easier to keep over his nose. He weighs 7lbs and has more ofva pointy nose. The smaller mask is ok for a flatter nosed Chi.