eCFR Reference Browser

---

title: "21 CFR §868.1750"

source: "https://www.ecfr.gov/current/title-21/section-868.1750"

title_number: "21"

volume_number: "8"

chapter_number: "Unknown"

subchapter_code: "H"

subchapter_subject: "MEDICAL DEVICES"

part_code: "868"

part_subject: "ANESTHESIOLOGY DEVICES"

subpart_code: "B"

subpart_subject: "Diagnostic Devices"

section_number: "868.1750"

section_subject: "Pressure plethysmograph."

cfr_reference: "21 CFR 868.1750"

title_name: "Title 21"

title_subject: "Food and Drugs"

parts_covered: "Parts 800 to 1299"

revised_date: "Revised as of April 1, 2019"

publication_date: "As of April 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

(a)Identification. A pressure plethysmograph is a device used to determine a patient's airway resistance and lung volumes by measuring pressure changes while the patient is in an airtight box.

(b)Classification. Class II (performance standards).

§868.1750 - Pressure plethysmograph.