Dust Extracted Hay?

[Cherish]

Can anyone recommend me a good, dust extracted brand of hay?

I have to get dust extracted hay, as one of my boys has very severe allergies; he's a very moody pig, and when his allergies get bad, he gets very depressed and goes right off his food.
So minimising anything that might irritate his allergies is very important.

I know that good hay should have a nice, green colour and a sweet smell, however I've found that all of the types of dust extracted hay I've tried so far tends to be of a duller colour, and does not usually smell as nice.

Maybe this is due to the dust extraction process, so it might be unavoidable, but does anyone else here have to use this type of hay?
If so, do you know of any brands that are of a higher quality?

I live in the UK, so any brand that is available in Britain or delivers directly to the UK would be most helpful.

[Tophica]

Right now I am using Burgess Supa Forage Excel which is dust extracted pure dried grass, the pigs love it and its lovely and green. Its alot better than meadow hay even if it is more expensive.

[Maisiepaisie]

I buy Oxbow from The Hay Experts https://www.thehayexperts.co.uk/Hay%...imothy+Hay.21/ My pigs really love it.