2026-09-17
The Dreo Pilot Max S keeps first at 9.3. Last week I made the case for buying a fan on clearance. This week I want to look at the three purifier fans on my list, because Consumer Reports put air purifiers alongside air conditioners in its September markdown calendar, and that changes the math on the hybrid models more than on any plain fan.
The Dyson Purifier Cool TP10 at 8.9, the Dyson Find+Follow PC3 at 8.9 and the Dreo MC710S at 8.4 each do two jobs. In summer they move air. From October to March they run at low speed as a HEPA purifier in a closed room, which is exactly when windows stay shut and indoor air gets stale. A purifier fan bought on a September discount therefore works twelve months a year, and I rate that year round usefulness highly.
The running cost that matters over a year is the filter. Before you buy, look up the replacement filter price and how often the maker says to swap it. A Dyson filter that lasts a year at typical use spreads out to a few dollars a month. Put that figure next to the purchase price when you compare.
CR's other advice applies here too. A sale tag means little until you check it in a price history tracker. Dyson in particular runs regular promotions, so a September tag may simply match the usual discounted price. Prime Big Deal Days on 6 and 7 October is a sensible second look for the Dysons specifically, since Dyson has joined past October sale events.
For a plain tower fan, the Pilot Max S remains my pick. It runs quietly at low speed, draws 36 watts flat out, and its remote makes overnight circulation effortless.
Purifier fans work all year
The Dyson TP10, Dyson PC3 and Dreo MC710S run as HEPA purifiers through the closed window months, which lifts their value on a September discount.
Price the filter first
The replacement filter is the real yearly running cost of a purifier fan, so add it to the purchase price before comparing.
Verify the sale tag
Consumer Reports recommends checking price history, and Dyson promotions often repeat, so confirm a September deal beats the usual discount.
Pilot Max S still leads
Quiet low speed operation and a 36 watt maximum draw keep the Dreo first for plain air circulation.