--- title: Your Pocket Guide to Quick Facts About Confined Spaces  description: Due to the nature of a confined space's shape, size, lack of ventilation, & proximity to toxic gases, confined spaces present many hazards to employees. Check out these quick facts you can use as a teaching tool to help improve confined space safety on your job site! image: https://hub.quadcitysafety.com/hubfs/images/product-categories/technician-flashlight.jpg --- [** Login](https://www.quadcitysafety.com/request-an-account) [Blog](https://www.quadcitysafety.com/#KB) [Contact Us](https://www.quadcitysafety.com/contact-us) [Request a Quote](https://www.quadcitysafety.com/contact-us-need-help) [Resources](https://www.quadcitysafety.com/#KB) [Services](https://www.quadcitysafety.com/services) [View Cart](https://www.quadcitysafety.com/cart) [Checkout](https://www.quadcitysafety.com/cart) [![Quad City Safety](https://hub.quadcitysafety.com/hs-fs/hubfs/images/logo-light.png?width=200&height=71&name=logo-light.png "Quad City Safety")](https://www.quadcitysafety.com/) **Call**: (563) 445-2170 or **[Help Me!](https://www.quadcitysafety.com/contact-us-need-help)** ### Search In Progress # Instrumentation Blog # Your Pocket Guide to Quick Facts About Confined Spaces  ** Aug 15, 2016 10:55:58 AM / by [Quad City Safety](https://hub.quadcitysafety.com/instrumentation/blog/author/quad-city-safety) - [Tweet](https://twitter.com/share) ![technician using a flashlight on an electrical panel](https://hub.quadcitysafety.com/hs-fs/hubfs/Blog_Images/optimized%20from%20audit/technician-flashlight.jpg?width=575&height=383&name=technician-flashlight.jpg)   ## Examples of Confined Spaces Confined spaces can include any existing tank, tower, sewer, sewer station, manhole, sump, vault, vat, grease pit, tunnel, or other similar confined space. ## Hazards Due to the nature of a confined space's shape, size, lack of ventilation, proximity to toxic gases, and other contributing substances, confined spaces present many hazards to employees. Potential confined space hazards include hazardous atmospheres, and general safety hazards. Hazardous atmospheres expose employees to the risk of death, incapacitation, injury, or acute illness. Hazardous atmospheres include: - A flammable gas, vapor, or mist in excess of ten percent (10%) of its lower flammable limit (LFL) - An airborne combustible dust at a concentration that obscures vision at a distance of five feet or less - An atmospheric oxygen concentration below 19.5 percent or above 23.5 percent - An atmospheric concentration of any substance for which a permissible exposure limit is published in Subpart Z of 29 CFR Part 1910 and could result in employee exposure in excess of its permissible limit(s) - Any atmospheric condition recognized as immediately dangerous to life or health (IDLH) General safety hazards include but are not limited to: - Physical hazards - Structural hazards - Electrical hazards - Mechanical hazards - Biological hazards - Radiation hazards Topics: [Contractor Safety](https://hub.quadcitysafety.com/instrumentation/blog/topic/contractor-safety), [Confined Spaces](https://hub.quadcitysafety.com/instrumentation/blog/topic/confined-spaces) ### Subscribe to Email Updates - Recent - Popular - Categories ### Lists by Topic - [Confined Spaces (3)](https://hub.quadcitysafety.com/instrumentation/blog/topic/confined-spaces) - [Contractor Safety (3)](https://hub.quadcitysafety.com/instrumentation/blog/topic/contractor-safety) - [Gas Detection (3)](https://hub.quadcitysafety.com/instrumentation/blog/topic/gas-detection) - [Bump Testing (1)](https://hub.quadcitysafety.com/instrumentation/blog/topic/bump-testing) - [Elevator Safety (1)](https://hub.quadcitysafety.com/instrumentation/blog/topic/elevator-safety) - [Gas Detection Device Calibration (1)](https://hub.quadcitysafety.com/instrumentation/blog/topic/gas-detection-device-calibration) - [Instrumentation (1)](https://hub.quadcitysafety.com/instrumentation/blog/topic/instrumentation) - [educational (1)](https://hub.quadcitysafety.com/instrumentation/blog/topic/educational) - [howto (1)](https://hub.quadcitysafety.com/instrumentation/blog/topic/howto) ## ![Dave & Bacon;s Safety Tales Industrial Safety Podcast](https://hub.quadcitysafety.com/hs-fs/hubfs/C4/C4%20Landing%20Page%20Graphics/QCS%20-%20Podcast%20Art%20%20-%20JPG%20-%20V2%20-%20FINAL.jpg?width=640&name=QCS%20-%20Podcast%20Art%20%20-%20JPG%20-%20V2%20-%20FINAL.jpg "Dave & Bacon;s Safety Tales Industrial Safety Podcast") [![Subscribe on Soundcloud](https://no-cache.hubspot.com/cta/default/2355767/57b31f07-6013-4651-8019-40b7a8f542e9.png)](https://cta-redirect.hubspot.com/cta/redirect/2355767/57b31f07-6013-4651-8019-40b7a8f542e9) [![Subscribe on iTunes](https://no-cache.hubspot.com/cta/default/2355767/8aa70482-7e7f-498b-a26c-523345a85327.png)](https://cta-redirect.hubspot.com/cta/redirect/2355767/8aa70482-7e7f-498b-a26c-523345a85327) ### Proud Partner [![SafetyNetwork.me](https://hub.quadcitysafety.com/hs-fs/hubfs/Website_Images/safetynetwork.me-badge@2x.png?width=209&name=safetynetwork.me-badge@2x.png)](https://www.safetynetwork.me/) [![Credit Card Logos](https://www.3dcart.com/images/credit-card-logos/cc-lg-4.png "Credit Card Logos")](https://www.3dcart.com/)![](https://hub.quadcitysafety.com/hubfs/Website_Images/website/USA-PCI.png) ### Navigation - [Home](http://www.quadcitysafety.com/) - [Our Company](https://www.quadcitysafety.com/#KB) - [Shop Catalog](https://www.quadcitysafety.com/shop-catalog) - [Request a Quote](https://www.quadcitysafety.com/contact-us-need-help) - [Terms](https://www.quadcitysafety.com/terms-and-conditions) - [Privacy Policy](https://www.quadcitysafety.com/privacy-policy) ### Searches - [Fall Protection](https://www.quadcitysafety.com/fall-protection--226) - [Hearing Protection](https://www.quadcitysafety.com/hearing-protection--185) - [Eye/Face Protection](https://www.quadcitysafety.com/eye-and-face-protection-1) ### Contact - **  [View Locations](https://www.quadcitysafety.com/contact-us-need-help) - **  (563) 445-2170 - **  (563) 445-2171 - [**](https://www.facebook.com/quadcitysafety/) [**](https://twitter.com/quadcitysafety) [**](https://www.linkedin.com/company-beta/3895966/) #### I need help... 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