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Ventilation Systems for confined spaces

Ventilation Systems for confined spaces

Outfitting Correctly To Work in Confined Spaces

While work sometimes necessitates employees working in and around confined spaces, allowing employees to work in an enclosed space without following a permit system can be a life or death decision. OSHA's standard on permit-required confined spaces ([section]1910.146) has been around since 1993, but employers still have questions on whether or not they need an entry permit system. A good place to start is to decide if the space is a permit space.

A confined space (1) Is large enough for an employee to bodily enter and work; (2) Has limited or restricted means of entry and exit; and (3) Is not designed for continuous occupancy.  The space must have all three of these conditions to be a confined space per OSHA guidelines.



A permit-required confined space is a confined space that has one or more of the following characteristics: (1) Contains or has a potential to contain a hazardous atmosphere; (2) Contains a material that has the potential for engulfing an entrant; (3) Has an internal configuration that could trap or asphyxiate an entrant by inwardly converging walls or a floor which slopes downward and tapers to a small cross section; and (4) Contains any other recognized serious safety or health hazard.

If a space meets the definition of a permit space, use an entry permit system. But in some situations a permit may not be necessary. Consider whether you can reclassify the permit space as a non-permit space or determine if alternate entry procedures are appropriate.

All Safety Products, Inc. provides confined space equipment* supplies and accessories such as ventilation systems, confined space blowers, axial blowers, axial blower systems, com-pax-ial blowers, compaxial blowers from quality manufacturers such as Allegro and Air Systems.

*To ensure you are meeting OSHA requirements and other applicable safety standards and practices, it is best to hire a professional safety consultant ( or call your local OSHA area office or your state OSHA Consultation Services for their interpretation of your situation.