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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Description

💦 Keep your adventure gear fresh, dry, and ready to perform!

CLEAN WITHOUT COMPROMISE - Removes water-attracting residues that household detergents leave behind
SAFE FOR PREMIUM FABRICS - Perfect for Gore-Tex, Patagonia, Arc'teryx, and other technical outerwear
ECO CONSCIOUS PERFORMANCE - Water-based, PFAS-free, no optical brighteners or added scents
RESTORE YOUR GEARS SHIELD - Revives DWR and waterproofing for rain, ski, and snow jackets
EFFORTLESS WASH IN APPLICATION - Machine washable formula that enhances breathability and waterproofing

Nikwax Tech Wash is a 34 fl. oz technical cleaner designed specifically for synthetic outerwear. It safely cleans and restores waterproofing treatments like DWR without damaging fabrics such as Gore-Tex. The eco-friendly, PFAS-free formula removes residues that reduce water repellency, enhancing breathability and extending the life of rain, ski, and snow gear.

Reviews

A**P

Nikwax refreshed ski/snowboard Outerwear

Washed Patagonia and Northface ski jackets (shells and down liners), and Patagonia and 686 ski/snowboard pants. Garments came out refreshed after washing on delicate cylce with Nikwax Tech Wash. Followed instructions on bottle for 4 garments/load. No fading or odd smells after washing. Will continue to use each season.

22.09.2025

S**V

Impressive removed vomit smell

Removed the vomit and vomit smell from my tent after my daughter vomited all over the tent on a backpacking trip. I am impressed. I washed the tent by hand in my tub because of the mosquito net. I am about to wash all the stuff sacks and later the rain cover in the front loading washing machine and the sleeping pads by hand. Only complaint i have is i wished i knew how many mL fit in the cap so I can measure the soap quantity. I am estimating with a kitchen scale.

2.08.2025

T**N

Works great

The tech wash works great! Keeps high performance (expensive) clothes clean without over sudsing.

17.09.2025

M**R

Great product

This product is a great product and while the price seems high it really is a great value for the money because this bottle will last a very long time. Very easy to use just place recommended amount into washer once it’s full. The scent is a little strong but my experience it goes away once the clothes are dry. Your gear will be back to repelling water like new again. My only complaint is I purchased this huge bottle which was still almost completely full the temp outside rose to 98 for a couple weeks and the bottle somehow broke open at the bottom and almost all the product drained out before I noticed. I have maybe 20 ounces left so I would definitely keep an eye on the bottle if in the same situation. Maybe nikwax can read this and help me out with a replacement.

13.07.2025

L**T

Works great for rain suits:jackets and for snow skiing

Excellent for washing outer wear to maintain water resistance.

14.09.2025

B**J

Works good

We use this a lot.

12.09.2025

D**E

The only product to use

I use this on all my rain gear

5.09.2025

C**B

Works well!

Used on a generic cheapo jacket and made the jacket much more effective. Would recommend.

16.08.2025

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