Hello, I'm a user, and I don't have an answer for you! Sincerely. CT

I have not bought any accessories or spare parts and would not know who to contact here in Switzerland

Is it in the description? I don't understand your objection... Nevertheless, I would advise you against this product. Too loud, weak and wears off quickly.

Hello Anonymous, I don't know whether it is suitable for allergy sufferers. I clean it under running water and leave it to dry thoroughly. I have not replaced it.

Hello, as far as I know. No.

I haven't found anything either, so it's best to contact the manufacturer directly: https://www.blackanddecker.ch/de-ch/products/home-products/vacuum-cleaners/36wh-18v-lithium--tierhaar-dustbuster/bhhv520bfp

If you're talking about the fart brush, it's included and it's very effective

Yes, it's included and quite sturdy. Only the charging cable is not so easy to hide behind it, although you can roll it up.

The hoover is recharged on its stand connected to the electric current.