Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Dec 18;14(3):303–311. doi: 10.21053/ceo.2020.01907

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 by Korean Society of Otorhinolaryngology-Head and Neck Surgery

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Fig. 1. — Effects of e-cigarette vapor (with or without nicotine) on NCI-H292 cells and human nasal epithelial cells. (A) Result of cytotoxicity testing of NCI-H292 cells with water-soluble tetrazolium salt-1 (WST-1) treatment, showing that e-cigarette vapor did not display visible cell killing activity with up to 2 mL of e-liquid vapor when incubated for 24 hours. (B) Result of cytotoxicity testing of human nasal epithelial cells with WST-1 treatment, showing that e-cigarette vapor did not display visible cell killing activity with up to 2 mL of e-liquid vapor when incubated for 24 hours. e-cigarette, electronic cigarettes.