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How to Verify a PureLung Batch: Lot Numbers and Certificates
Find the lot number on the bottle, photograph the panel and ask the retailer for the certificate of analysis for that lot. The retailer's pack gives example references, but we cannot confirm a lab or a result. A certificate that names no lab, no date and no method proves little.
Written by the PureLung label deskUpdated · 5 min read

What is a lot number?
A lot number is a code printed on a bottle that links it to a production run. If a problem is found, the maker can trace which bottles belong to that run. It is also the key you need to ask about testing of your own bottle.
Look on the bottom or the side of the bottle for letters and digits, and often a best-by date.
What is a certificate of analysis?
A certificate of analysis, or CoA, is a lab report for a lot. A useful one names the lab, the date, the methods and the results, such as identity, contaminants and amounts. It should match your lot number. A CoA is a document, so its value depends on who wrote it and how it was done.
What we can and cannot say
The retailer's pack gives reference codes for a lot and a certificate. We list them for the owner to confirm and do not publish them as verified, since the lab is not named and we have no report to read. That is why this site makes no claim of third-party testing.
"Third party tested" is a phrase, not a result. A named lab, a date and the numbers make it a fact.
A checklist for your bottle
Take these steps when your order arrives.
- Photograph the front, the panel and the lot number.
- Write the lot number in your order notes.
- Email the retailer at [email protected] and ask for the certificate of analysis for that lot.
- Check that the certificate names a lab, a date and tests such as heavy metals and microbes.
- Compare the panel with the one on the supplement facts page.
What to do if the seller will not share
A refusal is information. You can ask again, ask a pharmacist for advice or choose to return the bottle within the guarantee window on the live listing. A seller that stands behind a product usually finds it easy to share a report.

PureLung: 60 capsules a bottlePacks of 1, 3 or 6 bottles · live price shown at checkout · guarantee as printed on the live listing
See packsWhat a certificate cannot show
It cannot show that the capsule works. It can only show that the lot matched its specification on the day of testing. It also cannot confirm the label is accurate unless it covers the amounts of the named ingredients, which for a blend need the maker's data.
What does the PureLung label say?
The label shows 60 capsules, a serving of 2 and a 600 mg Proprietary Blend of eleven names with no single amount; it names no disease.
| Item | As printed |
|---|---|
| Form and count | Capsules, 60 per bottle; serving size 2 capsules; 30 servings |
| Blend per serving | Proprietary Blend, 600 mg: eleven names, no single amount printed |
| Inactive | Rice Flour, Magnesium Stearate, Silica Dioxide |
| Distributor | MJO, Sheridan, WY 82801 |
Where to read more
The batch verification page has the full guide, and the testing and quality page explains what tests exist (FDA, FDA 101: Dietary Supplements).

3-bottle pack
3 bottles: 180 capsules
Not listed on the packNot listed on the pack a bottle
Shipping shown at checkout · Guarantee as printed on the live listing
Order 3 bottles
6-bottle pack
6 bottles: 360 capsules
Not listed on the packNot listed on the pack a bottle
Shipping shown at checkout · Guarantee as printed on the live listing
Order 6 bottlesPrices are filled in once the live listing is confirmed. A single bottle is also sold. Check your medicines with your doctor or pharmacist before you order, and keep using every inhaler and prescribed medicine.
FAQ01
PureLung questions people ask
Where is the lot number?
On the bottle, often at the bottom or side.
Can I check a CoA online?
Only if the seller publishes it. Ask the retailer.
Is a lot number proof of quality?
No, it is a tracing code.
What if the lot is missing?
Do not take the capsules and contact the seller.
Does FDA test each lot?
No. Responsibility rests with the company.
Who wrote this02
Written and reviewed by
Pages built from the label images, seller information and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. authorized retailer for PureLung. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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More about PureLung
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Ready to look at PureLung?
Check your medicines first, keep every inhaler and prescribed medicine, read the directions on the bottle that arrives, then pick a pack of 1, 3 or 6 bottles. The checkout shows the live price, any shipping and the guarantee.
- Checkout runs on the sales site
- Guarantee as printed on the live listing
- Ships from the U.S.

