Will be travelling soon on long haul flight from IAD.Am i allowed to take my cpap on board with me?

You will have trouble powering it. Even if you could power it, I would not consider it a good idea.

If you really feel like it is a good idea, please speak to your doctor and to the airline.

Some airlines allow it with prior permission. Depends on the carrier. Have you seen this?

I recommend using only doctor prescribed cpap machines.

The doctor issues a prescription. The customer (in cahoots with the insurance company) is the arbiter of what machine to buy. AFAIK nobody will sell a machine without a valid Rx being presented. The hospitals and sleep clinics would prefer that you buy the machine they stock in their sales rooms. But you don't have to.

Thank you.
Used it before on LH/BA/UA/AF with no problems.
I was wondering with all the new security limitations if i can still take with me onboard the flight.

In terms of security, unless you are transiting through/ or traveling to the UK, you should be fine.

Sleep clinics are not allowed to stock machines, nor sell machines. It is against the law for sleep clinics to have any sort of financial incentive in suggesting CPAP.

My clinic/hospital (major med ctr/teaching hospital) "fulfilled" my first Rx without blinking. Recent law?

Check out these two sites:
www.episteme-software.com/cpap.html
http://query.nytimes.com/gst/fullpa...753C1A9659C8B63

Hospitals and Hospital run clinics are exempt from this law.

That law federally only applies to patients with Medicare / Medicaid (certain states also have it for all patients).

Even then, there are some exceptions depending on the exact financial structure of the sleep clinic.

I traveled last week with a CPAP in my briefcase; passed through security at Heathrow Terminal 1 (Prior to the reduced carryon restrictions) Terminal 3 (day after reduced restrictions) Terminal 3 Flight Connections; Warsaw, and O'Hare Terminal 1. No questions or special interest at any of these locations.

CPAP is a permitted assisted breathing device per FAA reg 14 - 382.41(d). US airlines must permit them aboard. To use them you need an approved battery pack.

http://www.tsa.gov/travelers/airtrav...eds/index.shtm

Travelers with Disabilities and Medical Conditions
Important Information For Our Travelers with Disabilities and Medical
Conditions

Our checkpoint security screening procedures for persons with
disabilities, medical conditions, and the mature have not changed as
a result of the current threat situation.

All disability-related equipment, aids, and devices continue to be
allowed through security checkpoints once cleared through screening.

Disability and medically related items permitted beyond the
checkpoint include:

Exterior medical devices

Assistive/adaptive equipment

CPAP machines respirators

Hearing aids

Medications and associated supplies

All diabetes related medication, equipment, and supplies

Any other disability-related equipment and associated supplies

Am flying on Delta overnight/overseas next month. In their webpage it says that CPAPS can't be used on board. I'd buy a battery pack if I thought I could actually use it ( which I want to do). Any ideas?