Save $150 on Dyson Purifier Hot plus Cool Formaldehyde Hp09. Purifies and Heats the Whole Room. only From Dyson! Posted in Dollar off, Dyson Inc., Electronic Equipment, Promotions, Shopping, Stores Tagged Dyson Inc., Electronic Equipment The online store, Dyson Inc. in the Electronic Equipment category, offers Dollar off on purchases ending 10-27-2024.