Dyson Purifier Hot+Cool Gen1 HP10: problems, parts and running costs

Checked: 2026-10-17

Summary

The HP10 is a 3-in-1 air purifier, fan and heater (30.2 in tall, fully sealed HEPA H13 filtration capturing 99.97% of particles down to 0.3 microns, 10 fan speeds, 350-degree oscillation, remote control with no app connectivity) that Dyson lists at $529.99, backed by a 2-year limited warranty. The two costs that decide ownership are the $79.99 replacement filter and the 1500 W heater, which owners report adding hundreds of dollars a month to a power bill. At sale prices around $400 it is a defensible compact 3-in-1; at full list price it is hard to recommend over alternatives with fuller sensing and app control.

Common problems and fixes

Replacement filter cost is the most common complaint — owners across Reddit and review sources flag the $79.99 official filter (part 969048-05), due every 12 months at 12 hr/day use. Fix: third-party compatible filters run $28–36 at Walmart. Not a warranty item — it is a consumable. [6][7]
Heating mode is noticeably louder than fan/purify mode — one owner compared the noise to a portable air conditioner. No fix reported; size expectations before running it as a heater. [5]
High electricity use when heating — the heater draws up to 1500 W; one owner reported a $250 increase in a monthly power bill running it 4–5 hours daily, and across the threads, heating at 1500 W for 4–5 hours a day adds $100–250 a month depending on local rates. Dyson notes the machine suits well-insulated spaces or occasional heating use. [2][5]
No app or Wi-Fi connectivity — control is the curved, magnetized remote only, unlike the newer HP1; listings that mention app operation refer to other models. [1]
Sensing covers PM2.5 and PM10 only — formaldehyde, NO2 and VOCs are filtered by the carbon stage but not detected or displayed, so the LCD cannot warn about them. [1]

Parts and consumables

360° Combi Glass HEPA + Carbon 2-in-1 filter (part 969048-05) — $79.99 from Dyson’s support page (October 2026), replaced every 12 months at 12 hr/day use; third-party versions run $28–36 at Walmart. Dyson’s support page has video instructions for the swap: unplug, click the old filter off, click the new one on. [6][7]

Yearly running cost

Filters: one replacement per year at the 12-month interval — $79.99/year official, or $28–36/year with third-party filters. Computed as one filter per year at the listed filter price. [6][7]
Electricity: fan mode draws 6–40 W, which is small; heating mode draws up to 1500 W. One owner’s $250 monthly bill increase at 4–5 hr/day of heating is the only published data point, so a typical yearly total is not enough data — scale that monthly figure by local rates and hours of use. [5]

When it is a good buy

Around $400 (Dyson Week sale, August 2025: $399.99) — defensible for a compact 3-in-1 with genuine HEPA H13 filtration, if you accept PM-only sensing and remote-only control. [3]
At the $529.99 list price (Dyson US, October 2026) — weak value; TechRadar recommends the smarter Dyson TP09 plus a separate heater at similar money. [3]
Buy on sale, not at list — the gap between the $529.99 list price and the $399.99 sale price decides it. [3]