A perfume atomiser is a small bottle, usually made of glass, that releases perfume through a pump or valve and is designed for travel or for the first few fills from a large bottle. When you order a decant from us, the perfume already comes poured into one of these atomisers: a new one, sealed and labelled with an internal batch code, ready to wear from day one, with no extra steps on your part.
If you’re wondering how a decant compares with other ways of trying a perfume, such as counter samples or promotional samples, we cover those distinctions separately. Here, we’re focusing on the physical object you hold in your hand: what type of atomiser it is, how to use it correctly and how to store it long term.
- A decant’s atomiser comes sealed and labelled with a batch code for traceability and hygiene, not because it is a tester or an official sample from the perfume house.
- The spray mechanism varies by type: it has a valve, an internal tube or a hidden nozzle for travel, and each type is easy to recognise by how you press it.
- Perfume settles evenly on the skin if you spray it from a distance of approximately 15–20 cm, rather than holding it right against your wrist.
- An empty atomiser of your own can be cleaned with pure alcohol and left to air-dry before being filled again.
- Perfume contains alcohol, so keep the atomiser away from heat and open flames, while direct light speeds up its degradation over time.
What atomiser comes with a decant and why is it sealed
Every decant we sell is hand-poured by us directly from an original bottle purchased with an invoice from an authorised distributor into a new glass atomiser. The atomiser is sealed and labelled with an internal batch code before it is sent to you, so you know exactly what it contains and where its contents come from. This seal does not make the decant a “tester” or an “official sample” sent by the perfume house — we remain an independent store, and the seal and label are about identity and hygiene, not any special status for the perfume inside.

That’s precisely what sets a decant apart from an ordinary, empty travel atomiser that someone fills at home from their own bottle: with a decant, the pouring and labelling have already been done in a controlled way before the bottle reaches you. If you’re interested in exactly what this pouring process looks like, step by step, from the original bottle to the sealed atomiser, you can read our dedicated explanation of decanting; here, we’re focusing on the result, namely the atomiser itself. The full process, including how we verify the origin of every bottle, is also described on the page about how our store works.
Types of glass atomisers and how the spray mechanism works
The most common type is the valve atomiser: it fits onto the neck of the original bottle, and a simple press on the pump releases a fine mist of perfume. It’s the type you’ll most often recognise from decants and separately sold travel bottles, precisely because it can be filled quickly straight from the source bottle. The tube version, sometimes called “bottom-fill”, draws perfume through a thin tube inside the bottle by capillary action or slight pressure, and tends to spray more slowly than the valve version — useful to know if you notice that your atomiser seems to release perfume more gradually.
There are also “twist” travel atomisers, where the nozzle is hidden inside the casing and only becomes visible when you twist the top. This design reduces the chance of accidental spraying in a handbag or luggage, because the mechanism simply won’t activate unless you twist it first. It’s a practical solution, especially for people who carry their atomiser in a handbag or coat pocket, where an accidental press could stain other items.
Glass, aluminium or plastic: what the casing material changes
Glass remains the preferred material for decants because it doesn’t react with the alcohol and aromatic oils in perfume, as some inexpensive plastics might over time. Aluminium or durable plastic casings are found mainly on travel atomisers designed to withstand drops and scratches, and their lighter weight makes them convenient to carry in a pocket, even though glass remains the standard for preserving perfume quality over the long term.
How to spray correctly and how far from the skin
The aim is for the perfume to settle like a fine mist, not as a concentrated jet in one spot. To do this, hold the atomiser approximately 15–20 cm from your skin when you press the pump, rather than holding it right against your wrist (source: Everfumed). If you wear an intense perfume, one well-placed spray on your wrist or neck is often enough for a few hours — more doesn’t necessarily mean it will last longer; it just means you risk getting tired of it sooner.
After spraying, avoid rubbing your wrists together, a common reflex that speeds up the dissipation of the top notes and can change how you perceive the perfume in the first few minutes. If you want to know exactly how many sprays each decant size, from 2 to 10 ml, provides and approximately how many days of wear each one covers, our size guide has figures you can rely on when choosing how much to order.
If you want to reuse an empty atomiser: how to clean it
It’s important to say from the outset: the next steps are about cleaning your own, already empty atomiser, not a way to transfer perfumes bought elsewhere. We don’t recommend refill kits as a solution for perfumes from third parties, and what follows applies strictly to sanitising the bottle you already have if you want to reuse it later for the same decant or another one from our store.
- Empty the atomiser completely by spraying the remaining contents into the air until the pump no longer releases any liquid.
- Rinse it with pure alcohol, isopropyl alcohol or 70% rubbing alcohol, letting it run through the pump with a few presses.
- Leave it to air-dry completely, with the cap open, before filling it again.
If you mix several perfumes in the same atomiser without cleaning it thoroughly between them, the scents can overlap, and the final result can be quite different from either of the original perfumes. For a sticky pump, wiping it with a little alcohol on a piece of cotton wool is usually enough; there’s no need to disassemble the mechanism. Another useful detail when refilling: an atomiser filled beyond its capacity can leak because of excess pressure, so it’s better to stop pouring a little before the neck’s rim, rather than filling it right to the top.
How to store your atomiser: heat, light and carrying it in your luggage
Most perfumes contain a high proportion of alcohol in their formula, which makes them highly flammable (source: Osmoz). For this reason, keep the atomiser away from heat sources, sparks and open flames, just as you would take care with any other alcohol-based product in the bathroom.
Direct sunlight and heat degrade the aromatic compounds in perfume over time, even if the bottle is tightly closed. The simplest thing is to keep the filled atomiser in a cool place, away from a sunny window or nearby radiator, when you’re not carrying it. A small, sealed atomiser, from 2 to 10 ml, fits easily into any piece of hand luggage or bag, and if you’re going to fly, check your carrier’s rules for liquids before packing so you won’t have any surprises at security.
Alcohol, declared allergens and a quick skin test
Perfumes contain alcohol and a range of substances considered contact allergens, which must be named individually on the label when they exceed a minimum concentration threshold set by European regulations (source: Biorius). Since August 2023, Regulation (EU) 2023/1545 has expanded the list of perfume allergens that must be declared individually, adding 56 new substances alongside the 24 already known, for leave-on cosmetic products above the 0.001% threshold.
If you have sensitive skin or haven’t worn a particular perfume before, testing it on a small, unirritated area, such as the inside of your forearm, before wearing it more widely is a reasonable precaution. This does not replace medical advice: if you’ve had allergic reactions to perfumes in the past, talk to a doctor or dermatologist before trying a new perfume.
In short, the atomiser that comes with your decant is already ready to use, sealed just like any other decant in our store — whether you choose a fruity-amber perfume like Xerjoff Erba Pura or a perfume from another olfactory family.

With the right spraying technique, proper cleaning if you want to reuse the bottle, and storage away from heat and direct light, your atomiser will keep the perfume in good condition down to the last drop.

