Our take
The AM04 combines a bladeless fan and portable heater, but the all-unit recall makes serial-specific correction confirmation a condition of any use.
Only consider an AM04 after Dyson confirms the serial-specific recall correction; do not operate an uncorrected or unverified unit..
Not for anyone who cannot verify the recall remedy, needs current ordinary parts and servicing, or requires a verified historical Amazon offer.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Dyson material describes both fan-only airflow and supplemental heating.
- The archive documents remote control, adjustable tilt, oscillation and variable airflow.
- The AM04 remains distinct from Dyson cooling-only AM02/AM07 and fan-heater AM09 models.
What to weigh up
- CPSC includes every AM04 in a fire-hazard recall and directs owners to stop use and unplug.
- The CPSC summary says repair while its detailed instructions say to contact Dyson for a free replacement; Dyson directs owners through its own correction process.
- Serial-specific correction, refurbished condition and B00OHVY02M mapping are unknown; ordinary servicing and replacement parts are no longer offered.
The key details
| Model covered | AM04 |
|---|---|
| Controls | Fan-only operation and supplemental heating are manufacturer-described; performance is not independently measured |
| Timer | Dyson archive lists remote, ten variable airflow settings, tilt and oscillation |
| Other verified details | CPSC recall covers all AM04 units; historical B00OHVY02M, refurb condition and completed correction are unverified |
Performance figures are manufacturer claims. Source checked October 11, 2026. Regional models and included accessories can differ.
What the features mean for you
Resolve the recall before considering operation
The AM04 combines a bladeless fan and a portable heater in a compact upright loop design, so it is relevant to someone seeking fan-only airflow in warm weather and supplemental heat in winter. The recall is the deciding purchase constraint. CPSC covers all AM04 units because an electrical short can overheat and pose a fire hazard; its detailed instructions tell owners to stop use, unplug the heater and contact Dyson. The CPSC summary labels the remedy as repair, while the detailed instructions describe a free replacement. Dyson's recall site describes a free engineering correction. Follow Dyson's serial-specific instructions and do not treat a historical refurbished title as proof that the correction was completed. The saved sources do not establish a manual speed count, selectable timer maximum or 120 V / 60 Hz supply input, so those finder selectors remain unknown.
A fan and heater in one upright form
Dyson's archive describes fan-only smooth airflow in warm weather and heating in winter, with the loop-shaped upper body and no external fan blades. That combination may suit someone looking for one upright appliance to use across seasons. The maker's performance language is not an independent heating or cooling test, however, and the saved sources do not establish room coverage, measured airflow, noise or efficiency. Treat this as a documented product role rather than evidence that it heats or cools a particular room quickly. The recall must be resolved before the dual-purpose design becomes a practical benefit.
Remote, airflow settings and aiming
Dyson's brochure lists a remote, ten variable airflow settings, tilt adjustment and oscillation. Those controls offer more ways to adjust direction and intensity than a fixed-output fan, but the source's phrase variable airflow is not mapped to a selector count for manual speed levels. The review therefore does not count ten as ten confirmed speed settings. Remote and oscillation descriptions also do not establish app or voice support or a numeric sweep angle. Buyers who need a particular control should confirm it in the AM04 manual and on the exact unit rather than transferring controls from AM02, AM07 or AM09.
Maintenance and service are limited
The current AM04 support page describes cleaning the loop and adjusting the airflow angle, but says Dyson no longer provides ordinary servicing or replacement parts for this model. That is separate from the recall correction process: owners should use Dyson's recall instructions rather than assume ordinary service is available. The historical row's refurbished condition and serial-specific correction status are not verified. A shopper would need to confirm the exact serial and remedy with Dyson before use, and should weigh the service limitation when deciding whether to pursue an older appliance. The saved material does not establish the condition of any present seller's unit, a numeric oscillation arc, or the voltage and frequency rating, so those selectors remain unknown.
Keep the identity and offer boundary clear
The frozen record calls B00OHVY02M a blue certified-refurbished AM04, but the Amazon page failed and the exact ASIN, finish and refurb condition are not crosswalked to a current offer. Dyson's archived brochure documents Iron/Blue as an AM04 color, which does not prove that the frozen ASIN is that variant. Keep AM04 separate from AM02 and AM07 cooling fans and the later AM09 fan heater. Use the tagged AM04 model search only as a discovery route; confirm the printed model, serial-specific correction and seller details before considering purchase. This is source-based analysis, not personal testing or buyer-review summary.
What else to compare
Compare a different model only after checking its own identity and safety information; do not transfer AM04's heater function or recall status to AM02, AM07 or AM09.
Before you buy
Can an AM04 be used before checking its serial number?
No. CPSC says to stop using and unplug recalled units; contact Dyson and confirm the specific unit's correction before operation.
Does the frozen Amazon ASIN prove a refurbished unit was corrected?
No. The exact ASIN and refurbished condition are not verified, and no serial-specific correction record is available.
Does Dyson still provide ordinary parts and service?
The current AM04 support page says regular servicing and replacement parts are no longer provided; that is separate from the recall correction process.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- U.S. CPSC AM04/AM05 recall notice; all AM04 units included ↗ — checked October 11, 2026.
- CPSC AM04/AM05 recall notice; hazard, stop-use instruction and remedy wording ↗ — checked October 11, 2026.
- Dyson AM04/AM05 recall process and engineering-fix information ↗ — checked October 11, 2026.
- Dyson AM04 support page; ordinary service limit and maintenance details ↗ — checked October 11, 2026.
- Dyson AM04 brochure; remote, airflow controls, tilt, oscillation and color claims ↗ — checked October 11, 2026.
The decision
Treat recall correction as a prerequisite, then assess the documented fan/heater role and controls against a verified unit's condition.
Is it the right fit?
Check the exact model and today’s offers on Amazon.