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- Be sure to check your batteries
- Placing unit on a shock absorbing surface will minimize vibrational noise
Noisy By suzanne on 2/7/2015suzanne wouldn't recommend this product to a friendThis unit has a loud vibration noise which gets old real fast. Also the airline tubing is really short at 24". For a portable, low use product I guess this would be ok, but still too much noise.. But for a weekend away emergency backup, this unit does not work well.