Is this 100% argon gas, or does it also have nitrogen?

The can says it contains a "custom blend of pure nitrogen (N2), carbon dioxide (CO2) and argon (AR)" It works very well.

How does it work and do you need a special stopper?

Looks like the inert gases displace oxygen to prevent oxidation. You do need a wine stopper to keep the inert gas in and additional oxygen out. Doesn't appear to need to be a special stopper though.

Is preservation performance affected if I lay the bottle on a rack after closing? I have a chiller which doesn't accommodate standing bottles.

No. It doesn't need a thick layer of gas to keep the wine protected as long as it stays still, but you might give it just a little more if it's on its side.

Can someone tell me why simply pouring the wine into a smaller bottle, or half bottle, filling to the brim, wouldn't accomplish the same thing?

It would accomplish the exact same thing...though you are the most industrious win drinker I have ever heard of. This is meant to be a quick and easy way to keep a partially full/empty bottle of preserved in its original bottle. There is always more than one way to skin a cat....this is just one of the easier ways.

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Wine Enthusiast Private Preserv Preservation Spray

Product ID: 276662308

Details

Colour
Silver
Brand
Wine
Shape
Cyclindrical
Is dishwasher-safe
Yes
Global Trade Identification Number

⏳Preserves freshness for weeks to years

🍷120+ sprays per can

🛡️Inert gas blend protects flavor

¥17598

Duties & taxes included

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🍾 Preserve your pour, impress your palate.

MULTI DRINK VERSATILITY - Protects not just wine, but port, sherry, spirits, olive oils, and even herbs—your bar’s secret weapon.
120 USES OF PURE PRESERVATION - Maximize every bottle with over 120 sprays of inert gas to lock in flavor and aroma.
NO BOUQUET STRIPPING TECHNOLOGY - Unlike vacuum stoppers, it preserves the delicate esters that define your wine’s character.
EFFORTLESS NO BATTERY OPERATION - Ready to use anytime, anywhere—no assembly or power needed, just spray and savor.
SCIENTIFICALLY CRAFTED GAS BLEND - Custom mix of nitrogen, CO2, and argon mimics wine’s natural atmosphere for flawless freshness.

The Wine Enthusiast Private Preserv Preservation Spray uses a patented inert gas blend of nitrogen, carbon dioxide, and argon to create a protective blanket over your wine or spirits, preserving freshness, flavor, and aroma for weeks to years. With over 120 sprays per can, it’s the #1 rated wine preserver worldwide, designed to maintain the bouquet without vacuum stripping. Ideal for wine, spirits, olive oils, and more, it’s a must-have for any connoisseur seeking effortless preservation without batteries or assembly.

Specifications

ASIN	B0000DCS18
Batteries required	No
Best Sellers Rank	#211,560 in Kitchen ( See Top 100 in Kitchen ) #418 in Wine Stoppers
Customer Reviews	4.5 4.5 out of 5 stars (1,218)
Date First Available	6 August 2012
Dishwasher safe?	Yes
Is assembly required	No
Item Weight	0.01 Ounces
Item model number	481 01 01
Item volume	8.57 Milliliters
Number of pieces	1
Product Dimensions	26.67 x 15.24 x 15.24 cm; 0.28 g

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥17598

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Good experience, but the tracking updates could be better.

2 months ago

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