ClO₂ Kits
Chlorine dioxide kits, made on the spot
Two bottles. A few drops of each, three minutes to react, then water — and you have as much chlorine dioxide as you need, at the strength the job calls for.
4.5145 ratings on Amazon
Free shipping over $49, a flat $5.99 below it, and thirty days to return anything unopened
- Our own brand, made in the USA
- Two parts, about 2,400 drops each
- Ships from our own stock
- Thirty days to return it unopened
How many drops?
From the maker's own published application chart, which the same arithmetic reproduces exactly.
You need
12
drops of Part A
12
drops of Part B
Mix them and wait three minutes — it turns amber — then add 32 oz of water.
- Strength
- ≈ 15 ppm
- Leave it on
- 5 minutes
- Uses up
- 0.5% of a kit
A kit holds about 2,400 drops of each part — enough to do this job 200 times.
Figures from KVLab (Keavys Corner LLC), who manufacture these kits: three drops of each part give roughly 25–35 ppm once 4 oz of water is added, and the concentrations come from their published application chart. The same arithmetic reproduces their three named mixes exactly. KVLab products are not registered by the EPA. They are offered as components to prepare chlorine dioxide for cleaning and general use, and no claim is made as to efficacy against any disease or pathogen.
The three we stock
Everything here is in our own warehouse, not ordered in when you buy it.
ClO2 Kit — Glass Droppers, Citric Acid
4.230 ratings on Amazon
About 800 spray bottles for hard surfaces
$30.95In stock, ships today
ClO2 Kit — Glass Droppers, HCl
4.233 ratings on Amazon
About 800 spray bottles for hard surfaces
$36.95In stock, ships today
ClO2 Kit — Plastic Drop Bottles, HCl
4.782 ratings on Amazon
About 800 spray bottles for hard surfaces
$33.95In stock, ships today
What it is for, and how strong
| Job | Drops per 8 oz bottle | Strength | Leave it on for |
|---|---|---|---|
| Cleaning hard surfaces | 3 of each | 15 ppm | 5 minutes |
| Heavy cleaning | 30 of each | 150 ppm | 10 minutes |
| Deodorizing stored water lines | 10 of each | 50 ppm | Leave to work, then flush |
| Produce wash | 1 of each | 5 ppm | 1 minute |
| Cut flowers and horticulture | 1 of each | 5 ppm | In the vase water |
From KVLab (Keavys Corner LLC)’s own application chart. One kit holds about 2,400 drops of each part. Not registered as a pesticide — no claim is made here against any disease or organism.
Why it comes as two bottles
Chlorine dioxide does not keep. Anything sold to you ready-mixed has been losing strength since the day it was bottled, and by the time it reaches a shelf there is no telling how much is left.
So the kit is two parts and you make what you need. A few drops of each, three minutes to react — it turns amber, which is how you know it is ready — then water to bring it to the strength the job calls for.
A made-up solution lasts about twenty days in a dark cupboard. The two bottles themselves keep for years, which is the trade: a little work each time, in exchange for knowing what is actually in the bottle.
How it goes
A few drops of each
Equal counts from the two bottles into a dry glass. The number depends on the job, and the calculator gives it.
Three minutes to react
It turns amber. That color is how you know it is ready — there is nothing else to watch for.
Add water to strength
Then use it. A made-up solution keeps about twenty days in a dark cupboard, which is why the kit comes as two parts rather than one bottle.
From the maker's own published application chart, which the same arithmetic reproduces exactly. Work out the drops for your job →
Which one do I need?
A row of sizes cannot answer this, so here it is in words.
Citric acid or hydrochloric
Both make the same amount of chlorine dioxide and take the same number of drops. Citric acid is the food-grade one you can keep in a kitchen cupboard; hydrochloric reacts faster. Neither changes the dose.
Glass droppers or plastic bottles
Glass droppers measure precisely, drop by drop, and are what most people want at home. Plastic squeeze bottles travel better and cost less.
How far a kit goes
About 2,400 drops of each part. An 8 oz spray bottle for hard surfaces takes three of each, so one kit makes around 800 of them — or about 80 at the heavy-cleaning strength.
Common Questions
- Why does it have to be mixed each time?
- Chlorine dioxide does not keep. That is why the kit comes as two parts: you make what you need, when you need it, and a made-up solution lasts about twenty days in a dark cupboard.
- How many drops do I use?
- It depends on the job and on how much water you are mixing into. Three drops of each part in 4 oz of water gives roughly 25–35 ppm; the calculator works out the rest.
- What is it for?
- Cleaning hard surfaces, clearing odor from a car or a room, produce washing, cut flowers. It is not registered as a pesticide and no claim is made against any disease or pathogen.
- Why does the mixture turn amber?
- That is the reaction happening. Give the two parts three minutes together before adding water — the color is how you know it is ready.
Read more
Buying by the case
Schools, laboratories and resellers: a quote, an invoice against a purchase order and a W-9 the same day — from Exact Sales LLC, the same people who pack the boxes.