I recommend the Veva Aftermarket Filters. Veva makes their own Air Purifiers and I have been running these in my Dyson Pure Cool DP01 for over a year. They make them for all the various types. I have compared them to the Original Dyson Filters, they are 1:1 exactly the same build quality. Makes no sense paying $100 for the Dyson brand filters when these do exactly the same thing for less than half.
DP01 / 02
https://www.amazon.com/gp/product/B07Q1F4J9Z/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
TP01 - 03
https://www.amazon.com/gp/product/B07Q1F4J9Z/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
TP04