Would this work well to remove the smell of forest fire smoke from synthetic sleeping bags?

Yes. I used it for my coat and sleeping bag after working a backcountry trail crew all summer. Removed the stains and most of the smells. I used a little bit of white vinegar for the rest.

How long does the product itself last? Is it shelf stable for a few years? Or does it degrade and not clean well after being opened for a year?

it is shelf stable for a year . I have used it after its been open for a while and it cleans just as well.

Does this product contain UV brightners?

Definitely NOT! There is a potential for problems if you wear clothes impregnated with optical brighteners in natural sunlight. You should definitely avoid UV brighteners. NikWax is the best product that you can use for your outdoor wear. It will keep your active wear looking and performing like new. No, I don't work for NikWax:} I'm a skier with a lot of pants and jackets. Kjus, a manufacturer of luxury ski wear, actually recommends NikWax on their site for care. I've been using NikWax products for years and it has kept everything perfect and won't strip the clothing of its protective coating. I use more than just the Techwash too. I use their down wash product and also some of their leather waterproofing and cleaning products on my gloves and footwear.

Would this be a good choice for getting the smell of forest fire smoke out of synthetic sleeping bags?

I thank it will work. Used it to clean motorcycle riding gear and it gave good results.

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Tech Wash Technical Cleaner, 34 fl. oz.

Product ID: 4990728

Details

Brand
Nikwax
Item Form
Liquid
Material Feature
Scent
Unscented
Specific Uses For Product
Cleaner for

🌿PFAS-free & eco-friendly

💧Restores water repellency

🧼Gentle yet effective cleaning

£92.75

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Description

💦 Elevate your outdoor style—clean smarter, perform better!

ECO CONSCIOUS CLEANING POWER - PFAS-free, water-based formula with no optical brighteners or added scents—safe for you and the planet.
TRUSTED BY TOP OUTDOOR BRANDS - Recommended for GORE-TEX, Patagonia, North Face, Arc'teryx, and more—because your gear deserves the best.
EFFORTLESS WASH IN APPLICATION - Just one cap per wash restores performance, making technical care simple and effective.
GOODBYE RESIDUE HELLO BREATHABILITY - Removes water-attracting residues that household detergents leave behind, reviving fabric performance.
PRESERVES YOUR GEARS WATERPROOF EDGE - Cleans without damaging DWR, keeping your outerwear ready for any adventure.

Nikwax Tech Wash is a 34 fl. oz. liquid cleaner designed specifically for technical synthetic outerwear. It safely cleans without harming durable water repellent (DWR) coatings, removes residues that reduce breathability, and is PFAS-free and eco-friendly. Ideal for high-performance gear from brands like GORE-TEX and Patagonia, it restores water repellency and fabric breathability with a simple wash-in formula.

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£92.75

Duties & taxes included

In stock

Sold byAmazon Isle of ManDelivered 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 Isle of Man.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Asin	B0019GL7ZG
Best Sellers Rank	#29 in Shoe Cleaners
Date First Available	January 12, 2004
Department	unisex-adult
Item Model Number	183
Manufacturer	nikwax
Product Dimensions	9.4 x 3.4 x 3.1 inches; 2.13 pounds

Tech Wash Technical Cleaner, 34 fl. oz.

Details

Details

Description

Specifications

Common Questions