Accessibility
We are committed to enhancing the accessibility and usability of this site for everyone and following web standards.
Structural Markup
- We strive to use semantically meaningful markup and good document structure to organize pages with hierarchies and headers. Some screen readers and other user agents can use this structural information and present the user with an overview of a web page based on the headings and sub-headings.
Visual Design
- This site uses cascading style sheets that have been validated through W3C. We comply with CSS Techniques for Web Content Accessibility Guidelines 1.0 . CSS are a great way to specify the look of a site, e.g. layout, fonts, colors, leading, margins, typefaces, and other aspects of style without compromising its structure.
- The content of each page is obtainable and functional, even if your browser or user agent does not support stylesheets.
- Font sizes are specified with relative units for easy resizing. Many low-vision users make use of devices to enlarge content displayed on their monitors. By using relative units, these users are able to change the size of the text without much difficulty.
- Any information conveyed through the use of color is also available without color.
- The site has been designed with a specific color scheme and evaluated for luminosity and contrast, so that content is accessible for people with color vision deficiencies.
Images
- All content images used in this site include alt attributes.
- Purely decorative images use null alt attributes or are are rendered via cascading style sheet background images.
- Any complex images include longdesc attributes or inline descriptions to explain the meaning of each image to non-visual readers.
Navigation
- A visible ‘skip navigation’ link is provided on every page for users who can see but who cannot use a mouse.
- Additional invisible skip links are also provided for screen readers users.
- Links are written to make sense out of context.
- Because research has shown that most key combinations are already in use by one device or another and any accesskey value specified is very likely to cause a conflict for some users, we have decided to not set default access keys.
- Because pop-up or spawned windows have accessibility and usability issues, (confusion, disorientation, breaking the back button etc.) none are used.
- A site map is provided to assist users in conceptualizing the framework of the site.
- Breadcrumb navigation is provided as a supplement to the global navigation. A breadcrumb trail tells a user “where they are” within the site.
- Search is provided on each page because some users prefer to use a search engine to reach target content.
- Linkrot, the obsolescence of the links on a Web page, is a well-known problem for every website. We try to be very conscientious and not change, rename or remove URLs on our site. But external links are completely out of our control. So on a regular basis we find and repair any dead or broken links with a link checking program. We cannot guarantee that these links will work all of the time and we have no control over availability of the linked pages.
- We are not responsible for the contents, reliability, or standards compliance of the external websites. We do not necessarily endorse the views expressed within them. Linking to other sites shall not be taken as endorsement of any kind.
Language
- The natural language used is English. This is specified in the markup on each web page.
- The abbreviation element is used to explain/expand abbreviations at least once (especially the first occurrence).
- A glossary of terms is provided to aid understanding.
Forms
- All form controls are appropriately and explicitly labeled, aiding users of screen readers and speech browsers.
- We provide a phone number as an alternative form of access for our online forms.
- Form validation routines do not rely on client-side script.
Scripts
- This site works without javascript.
- If javascript for a special effect, it is used for non-essential items.
- If javascript is used for important items, then a non-javascript alternative is provided for those viewers who need it.
Conformance, Validation and Standards Compliance
- Conformance evaluation of web accessibility is accomplished with a combination of semi-automated evaluation tools, manual evaluation by experienced reviewers, and user testing. Evaluation methods and tools which we use are described in Evaluating Web Sites for Accessibility.
- We make every effort to comply with:
- Checklists utilized:
- Our site is validated to the W3C XHTML Standard.
Contact
- Please let us know if there is anything we can do to make this site more accessible or usable.
E-mail: info@CleanAirForce.com
Phone: 800.449.2471