WSNUEEE
Plug-In · Wall-Mount · Light Sensor

A-P353

A slim wall unit that plugs straight into the socket and hangs at head height, out of the way of every table and shelf. It runs on pure oil alone — no water, no heat, no refilling a tank. A 160 mL bottle sits inside, four Boost grades set how strongly it scents, and a light sensor lets it work only when the room is lit.

1.6 W · AC100–240 V 160 mL bottle 25 m² · 75 m³ Boost G1–G4 12 h · 24 h · Smart 71.5 × 90.3 × 181.5 mm
WSNUEEE A-P353 plug-in waterless diffuser mounted on a wooden wall panel, releasing a fine scent mist beside a window
Model A-P353 · Plug-In Wall Waterless Diffuser · Product Manual
Home › Guides › A-P353 Setup Guide
·7 min read·Reviewed by WSNUEEE Product Support·Model A-P353
Product Overview

Know Your A-P353

Everything about the A-P353 before the first fill — what it draws, what it holds, and how much room it can scent.

MODELA-P353
SIZE71.5 × 90.3 × 181.5 mm2.81 × 3.56 × 7.15 in
NET WEIGHT236 g8.3 oz
POWER1.6 W
INPUTAC100–240 V ⋮ 50/60 HzPlug-in · no adapter
BOTTLE160 mL5.4 fl oz · screw-in
COVERAGE25 m² / 75 m³About 2650 ft³
GRADESG1–G4Boost: 4 scent levels
MODES12 h · 24 h · SmartSmart = ambient light sensor
MATERIALPlasticMatt white body, tinted base
DIFFUSIONWaterless atomisationCold air · no heat, no water
WSNUEEE A-P353 plug-in waterless diffuser in matt white with a tinted base, shown upright on a plain background
Mount It Where It Fits
Hotel
Meeting Room
Restroom
Brand Store
Aisle
No Water Tank, No Adapter, No Cord on the Floor
The A-P353 plugs straight into a wall socket and hangs there — that is the whole installation. Fragrance lives in a 160 mL screw-in bottle inside the body, so there is nothing to fill with water and nothing to spill. One unit scents up to 25 m² (about 75 m³), drawing just 1.6 W — under 4 kWh a month at 24 hours a day.
Quick Start

Install in Four Steps

From the box to a first scent — four moves, about two minutes.

1
Unscrewing the oil bottle from the lower part of the A-P353 body
Unscrew the Bottle

Turn the tinted base of the machine to unscrew the oil bottle from the body.

2
Filling the unscrewed bottle of the A-P353 with fragrance oil
Fill It with Oil

Fill the bottle with pure fragrance oil — no water at any point.

3
Screwing the filled oil bottle back onto the A-P353 body
Screw It Back On

Screw the filled bottle back onto the machine, tight and straight.

4
Plugging the A-P353 into a wall socket, where it hangs and starts working
Plug It In

Plug into the wall socket. The machine starts working at once.

⚠ Wait 10 Seconds Between Plug and Unplug
The time between unplugging and plugging back in must be at least 10 seconds. Plugging in too quickly can upset the pump.
Product Overview

The Control Panel, Up Close

Two buttons sit on the front: Boost on top and Mode below it. Between them, seven indicator lights tell you exactly what is on. Tap a label on the drawing to see what it does.

Line drawing of the WSNUEEE A-P353 showing the Boost row of four indicator lights and the Mode row of three lights for 12h, 24h and Smart Model A-P353 · front panel
①
BoostShort press cycles the scent grade G1–G4
②
ModeLong press 3 s = power · short press = mode
③
BuzzerBeeps on every button press
Controls

Controls & Settings

Two buttons and two choices: how strongly it scents, and when it works.

The Two Buttons
Swipe the table sideways to see the whole row →
ButtonPressWhat happens
Boost Short press Switches the scenting grade on. The indicator lights up to the current grade — on G3, lights G1–G3 are lit. Cycles G1 → G2 → G3 → G4.
Mode Long press 3 s Powers the machine ON or OFF.
Mode Short press When the machine is ON, switches the working mode between 12h, 24h and Smart.
Any button — The buzzer beeps for any button operation, whether short or long press.
Boost — Scent Grade
Spray
15 sec
Pause
285 sec
Full cycle
5 min 00 sec
Consumption
0.07 g/hLightest scent
Share of each cycle actually spent diffusing5.0%
Mode — Working Pattern
Schedule
12 h on12 h pause
Stops by itself
NoRepeats on its own
Best for
All dayHotel, meeting room
Light needed
NoRuns day and night
Share of a 24-hour day it works50%
Smart Mode Is the One to Notice
In Smart mode the machine reads the ambient light: it works when there is light and stays paused when there is none. That is the mode to use in a room that is empty and dark overnight — the machine simply waits, and starts again when the lights come on.
Reference

Concentration & Consumption

The four Boost grades differ in how long the machine pauses between sprays, not in how long it sprays. A shorter pause means a stronger scent and more oil used.

Table of the A-P353 Boost grades: G1 works 15 s and pauses 285 s using 0.07 g/h, G2 pauses 135 s using 0.13 g/h, G3 pauses 85 s using 0.19 g/h, G4 pauses 60 s using 0.25 g/h
The Same Table, in Words
GradeWork timeStop timeConsumption
G115 s285 s0.07 g/h
G215 s135 s0.13 g/h
G315 s85 s0.19 g/h
G415 s60 s0.25 g/h
Note 1. The above data is for reference only. Actual oil consumption may vary if customers use essential oils with different viscosities.
Note 2. For the best diffusion effect, it is recommended to use essential oils with a viscosity below 30 mPa·s. The optimal working temperature is 25 °C.
In the Box

What Comes with the A-P353

Four items, and nothing else to buy before you start.

Line drawing of the A-P353 diffuser body, front view showing the Boost and Mode buttons MachineFront · Boost & Mode buttons
Line drawing of the A-P353 diffuser body, side view showing the wall plug on the back MachineSide · plug sits on the back
Line drawing of the A-P353 160 mL oil bottle and its cap, shown separated from the machine Oil Bottle & Cap160 mL · screw-in
Also in the Box
A printed manual — the document carrying the same safety notices as this page, plus the spare-part reference. Keep both with the machine.
Care

Equipment Cleaning

Clean the machine when you switch to a different essential oil — and whenever the mist becomes weaker and weaker.

Cleaning Steps
1

Empty the bottle — unscrew the oil bottle from the machine and pour out the remaining oil.

2

Soak it — soak the bottle in industrial alcohol for 5 minutes.

3

Dry and refill — dry the bottle, then add a little industrial alcohol to it.

4

Screw it back in and run 5 minutes — screw the bottle back into the machine and power it on for 5 minutes.

5

Power off, empty and dry — switch the machine off and unscrew the bottle, pour out the remaining alcohol and dry it.

⚠ Alcohol, Not Water
The cleaning fluid here is industrial alcohol — never water. Water left inside a waterless atomiser is what blocks the core and weakens the mist.
When to Clean
  • You are about to change to another kind of essential oil.
  • The mist becomes weaker and weaker.
Guidelines

Safety

Small habits that keep the scent clean and the machine running well.

Best Practices
  • Keep the machine vertical. Tilting or lying it flat may cause the oil to overflow and affect the efficiency of the machine.
  • Allow at least 10 seconds between unplugging and plugging the machine back in.
  • Use it in an upright wall socket — the machine hangs from the plug, so the socket carries it.
  • Fill with pure fragrance oil only. Never add water at any point.
  • Clean the machine whenever you change fragrance, so the old scent does not follow the new one out.
  • Use WSNUEEE-recommended oils for the best scent throw and machine compatibility.
Safety Information
Keep It Vertical

Keep the machine vertical. Tilt or lie flat may cause the oil to overflow, and the efficiency of the machine may be affected.

No Modification

Shall not modify, disassemble or repair the machine. Repairs must be carried out by WSNUEEE Support.

Not in Damp or Pressurised Places

Do not use this product under high humidity and high pressure conditions.

Wait 10 Seconds

The time between unplugging and plugging into the machine cannot be less than 10 seconds.

Never Run It Dry

Unless there is oil in the bottle, or alcohol for cleaning, switch the machine off. Never run it empty.

Never Ingest the Oil

Do not ingest any fragrance oil or apply it to any part of the skin. Keep oils away from eyes, ears, nose, mouth and any other bodily opening. If contact occurs, flush with water immediately until all traces of oil have been removed.

Illustration of the A-P353 standing upright, marked correct with a tick
Vertical — correct
Illustration of the A-P353 tilted over, marked wrong with a cross
Tilted — wrong
Illustration of the A-P353 turned upside down, marked wrong with a cross
Inverted — wrong
Always unplug the A-P353 before cleaning or servicing it — and wait 10 seconds before plugging it back in.

Variations in spray output between different oil types and brands are normal and do not indicate a defect.

Help

Troubleshooting

Before asking to have the machine repaired, try to diagnose the problem following the instructions below.

Not diffusing
  1. Check whether the machine is in the pause period — the Boost grades pause between sprays by design.
  2. Check whether the tube is loose or not connected.
  3. The air pump may be damaged and need to be replaced — contact support.
Weak diffusion
  1. Check whether the gasket is damaged, loose or missing.
  2. Check whether the tube is loose or not connected.
  3. The atomizing core may be blocked — clean with alcohol, or replace it with a new one.
Oil spill / overflow
  1. Check whether the bottle is loose.
  2. Check whether the gasket is damaged, loose or missing.
  3. Please keep the machine vertical.
Still need help? Contact WSNUEEE Support — we respond within 24 hours. Full details are in the support section below.
Support

We’re Here to Help

Covered for a full year from the date of purchase.

12
MONTHS WARRANTY
  • ✓12-month manufacturer’s warranty from the date of purchase.
  • ✓Covers defects in materials and workmanship under normal use.
  • ✗Does not cover misuse, unauthorised modifications, or damage caused by incompatible oils.
Before You Return It
Please contact us first. Most issues can be resolved with a simple cleaning step — we’ll walk you through it personally. Our goal is to make sure you enjoy your WSNUEEE experience.
Spare Parts
Atomizing cores, gaskets, tubes and the 160 mL oil bottle are available from WSNUEEE Support. Tell us your model and which part you need and we will send the right one.
Questions

Frequently Asked Questions

Quick answers to what A-P353 owners ask most.

What is the WSNUEEE A-P353?
The A-P353 is a waterless plug-in diffuser that hangs from a wall socket. It runs on AC100–240 V at 50/60 Hz, draws just 1.6 W, holds a 160 mL screw-in oil bottle inside the body, and scents up to 25 m² (about 75 m³, or 2650 ft³). It measures 71.5 × 90.3 × 181.5 mm, weighs 236 g, and is made of plastic with a matt white body and a tinted base. There is no water tank.
How do I install the A-P353?
Unscrew the oil bottle from the machine, fill the bottle with pure fragrance oil, then screw the bottle back onto the machine. Plug it into the wall socket and the machine will start working. There are four steps and no wall bracket to fit — the machine hangs from its own plug.
Do I need to add water?
No. The A-P353 is a waterless diffuser with no water tank — there is nothing to dilute the oil with. Use pure, undiluted fragrance or essential oil only.
How do I change the scent strength?
Short press the Boost button to switch the scenting grade. The indicator light will light up to the current grade — for example, if you select G3, the three indicator lights G1–G3 will light up. The grades cycle G1, G2, G3 and G4, from the lightest scent and lowest consumption to the strongest.
What do the three working modes do?
Long press the Mode button for 3 seconds to power the machine ON. Once it is ON, short press Mode to switch the working mode. 12h mode: the machine works in a cycle of 12 hours work and 12 hours pause. 24h mode: the machine keeps working for 24 hours without a pause period. Smart mode: the machine automatically senses the ambient light, works when there is light, and stays paused when there is no light.
What does the buzzer do?
The buzzer emits a beep for any button operation, whether a short press or a long press. It is your confirmation that the press was registered.
How much oil does it use?
It depends on the Boost grade. G1 sprays for 15 seconds and pauses 285 seconds, using 0.07 g/h. G2 sprays 15 seconds and pauses 135 seconds, using 0.13 g/h. G3 sprays 15 seconds and pauses 85 seconds, using 0.19 g/h. G4 sprays 15 seconds and pauses 60 seconds, using 0.25 g/h. Actual consumption may vary with the viscosity of the oil you use.
Which oils should I use?
Use essential oils with a viscosity below 30 mPa·s for the best diffusion effect. The optimal working temperature is 25 °C. Avoid water-based or diluted oils, thick high-viscosity oils, and perfumes with a high alcohol content.
How do I clean the A-P353?
Unscrew the oil bottle and pour out the remaining oil. Soak the bottle in industrial alcohol for 5 minutes, then dry it and add a little industrial alcohol. Screw the bottle back into the machine and power it on for 5 minutes. Finally, power off, unscrew the bottle, pour out the remaining alcohol and dry it. Clean whenever you change to another kind of essential oil, and whenever the mist becomes weaker and weaker.
The mist is weak or there is none — what should I do?
For no diffusion: check whether the machine is in the pause period, check whether the tube is loose or not connected, and consider that the air pump may be damaged and need replacing. For weak diffusion: check whether the gasket is damaged, loose or missing, check the tube, and check whether the atomizing core is blocked — clean it with alcohol or replace it with a new one. Also make sure the machine is vertical and that the bottle is screwed in tight.
Oil is spilling or overflowing. Why?
Three things to check: whether the bottle is loose, whether the gasket is damaged, loose or missing, and whether the machine is being kept vertical. Tilt or lie flat may cause the oil to overflow.
Can I unplug it and plug it back in straight away?
No. The time between unplugging and plugging into the machine cannot be less than 10 seconds. Wait at least 10 seconds before plugging it back in.
Our Story

About WSNUEEE

We believe luxury fragrance should be effortless. WSNUEEE brings hotel-inspired scenting technology to your home — no water, no heat, no complexity. Just pure, beautiful fragrance.

Elevate the Air You Live In.

Need help with setup, ordering, or a warranty claim? Our team replies within 24 hours.

WOSUO INTERNATIONAL LIMITED
Unit 11, 9/F, The Cloud, No. 111 Tung Chau Street, Tai Kok Tsui, Kowloon, Hong Kong
Emailwsnueee@outlook.com
WhatsApp+852 64867199
Support sitewsnueee.com/support
Follow@wsnueee
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