Makita DFJ304 fan jacket
On-body ventilation inside a work jacket.
Keep in mind Manufacturer gallery shows the same DFJ hardware in a different garment size; sizes are not separate devices.
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The differences that matter
Makita DFJ405 fan jacket
On-body ventilation inside a work jacket.
Keep in mind Manufacturer gallery shows the same DFJ hardware in a different garment size; sizes are not separate devices.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Thermal wearablesAdd a model |  |  |
|---|---|---|
| Prices · all markets | Price not verified 0 offer records & sourcesNo verified price in this audit. | Price not verified 0 offer records & sourcesNo verified price in this audit. |
| Designed for | On-body ventilation inside a work jacket. ↗ | On-body ventilation inside a work jacket. ↗ |
| Form factor | Powered two-fan work jacket ↗ | Powered two-fan work jacket ↗ |
| Power & output | 18 V LXT lithium-ion battery; sold separately ↗ | 18 V LXT lithium-ion battery; sold separately ↗ |
| Fan Arrangement | Recessed left/right fan units ↗ | Recessed left/right fan units ↗ |
| Speed Settings | High / medium / low plus turbo ↗ | High / medium / low plus turbo ↗ |
| Runtime | Up to 15 hours on high with 18 V 5.0 Ah ↗ | Up to 15 hours on high with 18 V 5.0 Ah ↗ |
| Materials | 100% cotton ↗ | Titanium-coated polyester ↗ |
| Sleeves | Convertible/fastened short-sleeve configuration ↗ | Convertible/fastened short-sleeve configuration ↗ |
| Storage | Five pockets ↗ | Five pockets ↗ |
| Auxiliary Power | USB charging for portable devices ↗ | USB charging for portable devices ↗ |
| Availability | Exact manufacturer model verified; market and purchase eligibility follow the linked manufacturer source. | Exact manufacturer model verified; market and purchase eligibility follow the linked manufacturer source. |
| Important context |
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| Editorial pick & release | #9 · Our Top 10 Thermal wearablesRelease date not verifiedFirst retail release | #10 · Our Top 10 Thermal wearablesRelease date not verifiedFirst retail release |
| Evidence | Manufacturer source Checked 2026-10-12 | Manufacturer source Checked 2026-10-12 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.