Legal

Terms of use

Information is provided as-is

We work carefully from published documentation and we date every page, but prices change, products sell out, manufacturers revise their specifications, and documents are withdrawn. Verify anything that matters before you spend money on it.

No professional relationship

Reading this site does not create a medical, legal, or professional relationship of any kind. See our health disclaimer.

Third-party sites

We link to manufacturers, standards bodies and published research. We do not control those sites and are not responsible for their content, their claims, or their terms.

Limitation of liability

To the extent permitted by law, we are not liable for losses arising from decisions made on the basis of this site. Purchasing decisions are yours.

Content

Our writing, tables and analysis are ours. Manufacturer names, product names and documents belong to their owners and are referenced descriptively for identification and review.

Corrections

If something here is wrong, tell us. We will correct it and note that we did.