Waterless ultrasonic piezoelectric diffuser · Model UD11
UHF Portable Essential Oil Diffuser UD11
A pocket-sized waterless diffuser built for travel: a leak-proof sealed body with a silicone cap, a refillable 5 ml cartridge that works with oil- and water-based oils, quiet under-15 dB operation, and a rechargeable battery (8h / 14h; 2h charge).
Floor area by ceiling height
3.75 m / 12.3 ft27 m² 287 ft² 100 m³ ÷ ceiling height
Scent is dosed by volume, so the fixed figure is 100 m³. Floor area is that volume divided by your ceiling height - double the height and the area halves. Open-plan rooms, atriums and stairwells count as one connected volume. Spaces with heavy fresh-air exchange or doors held open need de-rating; air-change data is confirmed per project, never estimated.
Wholesale price
Silver, rose gold, blue or gold (4 colourways, +$0). Prices in USD, ex-works China, per piece by order quantity.
Bulk tiers
Build
Standard buildColour · +$0
SilverOrder quantity
120 pcs · 3 cartonsAdd 880 pcs to reach 1 000 pcs (25 cartons) at $13.31 per unit, $0.22 less on every piece.
One standard build unless stated. No paid nozzle-head or display variant on this model.
Portable, leak-proof, refillable
- No leaks in your bag. A sealed body and the included silicone travel cap let you pack it in luggage, a handbag or a pocket without spills.
- Whisper-quiet under 15 dB. 3 MHz piezoelectric atomization produces a dry nano mist with no water, no heat and no wet residue.
- Works with any base. Atomizes both oil-based and water-based essential oils; refill the 5 ml / 0.17 fl oz cartridge with your own blend.
- 5 ml lasts about 25-50 hours. Roughly 25 h on high (0.2 ml/h) or 50 h on low (0.1 ml/h); actual use varies with oil viscosity.
- Rechargeable. The 950 mAh battery runs about 8 h (high) / 14 h (low) per charge and fully recharges via USB in about 2 hours.
- Pocket size, 80 g. 107 × 45 × 22 mm / 4.21 × 1.77 × 0.87 in; aluminium + PA6 body in silver, rose gold, blue or gold.
- Coverage up to 100 m³ / 3 531 ft³ for business trips, travel, hotel rooms, cars and offices.
CE, FCC and RoHS certified, with a UN38.3 lithium-battery report and air/sea freight documents. A brand-exclusive sealed cartridge can be custom-made at MOQ 1,000 (one-time mold fee) — see the UHF technology page and ODM / OEM policy, or contact us. Need a larger unit? See the UD500 for spaces up to 500 m³. Wholesale direct from our China factory.
In every carton
5ml essential oil reservoir and sealing cap, 1ml essential oil pipette, Type-C charging cable.
Full specification
| Model | UHF Portable Essential Oil Diffuser UD11 |
|---|---|
| Product size | 107 x 45 x 22 mm / 4.21 x 1.77 x 0.87 in |
| Coverage | 100 m³ / 3 531 ft³ |
| Oil bottle | 5 ml / 0.17 fl oz |
| Oil use | 0.1-0.2 ml/h |
| Net weight | 80 g / 0.18 lb |
| Gross weight | 0.22 kg / 0.49 lb |
| Carton | 40 sets / 31 x 24.4 x 38 cm (12.20 x 9.61 x 14.96 in), 9.6 kg / 21.2 lb |
| Materials | PA6 + aluminium alloy; oil chamber PA + PCTG |
| Colours | Silver, rose gold, blue or gold (4 colourways, +$0) |
| Noise | <15 dB |
|---|---|
| Power | 8 W |
| Voltage | 5V |
| Control | Button |
| Pump | 3MHz piezoelectric ceramic atomization |
| Timer default | strong 8s on / 5min off; light 5s on / 3min off |
| Accessories | 5ml essential oil reservoir and sealing cap, 1ml essential oil pipette, Type-C charging cable. |
One option to choose: the build
| Build | SKU | Surcharge | Unit price at 120 pcs |
|---|---|---|---|
| Standard build | +$0 | $13.53 |
Volume tiers
| Order quantity | Cartons of 40 | Standard build |
|---|---|---|
| 1 - 99 pcs | 1 pc, no carton | $15.00 |
| 100 - 100 pcs | 2 - 2 cartons | $13.96 |
| 101 - 999 pcs | 2 - 24 cartons | $13.53 |
| 1 000+ pcs | 25+ cartons | $13.31 |
Detail gallery
User manual
Request the manual PDF with the RFQ.
UHF Portable Essential Oil Diffuser UD11 user manualCertification
CE, FCC and RoHS apply to this platform, with a UN38.3 lithium-battery report and air/sea freight transport documents available. Certificate copies and the per-market document list are issued with your quotation.
No engraving charge
Logo laser engraving on your sample unit
Order one sample unit and we laser-engrave your logo at no extra charge. The engraving service is free; the sample unit itself is charged. Volume logo, printed sleeves and custom retail boxes are quoted separately.
Buyer questions
What space does it cover?
Up to 100 m³ / 3 531 ft³ — hotel rooms, cars, offices and bedrooms on business trips or travel.
Is it waterless?
Yes. The 3MHz piezoelectric ceramic atomizer turns oil into a dry nano mist with no water, no heat and no wet residue.
How long does 5 ml of oil last?
About 25 hours on high (0.2 ml/h) or 50 hours on low (0.1 ml/h) — roughly 3–6 days at 8 hours/day. Actual use varies with oil viscosity.
How long does the battery last per charge?
About 8h on high and 14h on low with the 18350 3.7V / 950 mAh battery. A full USB charge takes about 2 hours.
Can I refill the cartridge with my own oils?
Yes. The 5 ml / 0.17 fl oz cartridge is refillable and works with both oil-based and water-based essential oils; the 1 ml graduated pipette makes refilling easy.
Will it leak inside my luggage?
No. The sealed body and the included silicone travel cap let you pack it upright or on its side without spills.
How quiet is it?
Under 15 dB. The 3MHz piezo atomizer runs nearly silently, with no water, heat or wet residue.
What accessories are included?
A 5 ml refillable oil cartridge, USB charging cable, sealed silicone travel cap and a 1 ml graduated pipette.
What colours are available?
Silver, rose gold, blue or gold (4 colourways, +$0).
Does it ship by air and sea, and what certifications does it have?
CE, FCC and RoHS, with a UN38.3 lithium-battery test report and air/sea freight transport documents for wholesale orders. Certificate copies are issued with your quotation.
Can I order a custom-branded sealed oil cartridge?
Yes. Built on our UHF diffuser technology, a brand-exclusive sealed refillable cartridge has an MOQ of 1,000 units. Consult our sales team with your drawings, or contact us for design support. A one-time mold fee applies; see the ODM / OEM page for the full policy.
Do you have a larger model?
Yes — the UD500 covers spaces up to 500 m³ / 17 657 ft³ with a 15 ml cartridge.
Can you engrave my logo?
Yes. On one sample unit the laser-engraving service is free (the sample unit itself is charged); volume logo, sleeves and custom boxes are quoted separately.
Request for quotation
Get your UHF Portable Essential Oil Diffuser UD11 wholesale price
Tell us colour split, quantity and destination market and we will return unit price, carton spec, lead time and certificates.
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