NO OF COURSE NOT.

"intrinsically safe" and "instrinsic safety" are terms used for electronic equipment operating in explosive atmospheres.

This concept was developed for safe operation of process control instrumentation in hazardous areas, particularly in the petrochemical industry.

OSHA does not certify, or approve, any vacuum cleaner.  Only a Nationally Recognized Testing Laboratory (NRTL) has the authority to certify vacuum cleaners as per NFPA, UL and CSA standards in conformance with national electrical codes (NEC and CEC).

NO.  You would only need to use an explosion proof vacuum cleaner if the asbestos, lead, silica or any other designated substances are located inside of a classified hazardous location.  The material itself is not explosive, however, the atmosphere is.

I already answered this question. Please see the definition of intrinsically safe below:

http://en.wikipedia.org/wiki/Intrinsic_safety

It is clear that pneumatic (air) operated vacuum cleaners are not concerned by this definition. It concerns only electronic equipment.